./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 --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis PERSISTENT_SETS --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6f232940 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f16b4cfe031f645c2fa5eeec572887c79d8e9243727503d849e4b19e0e31cc63 --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis PERSISTENT_SETS --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6f23294-m [2025-03-20 01:06:50,127 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-20 01:06:50,205 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-03-20 01:06:50,210 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-20 01:06:50,211 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-20 01:06:50,230 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-20 01:06:50,231 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-20 01:06:50,231 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-20 01:06:50,231 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-20 01:06:50,231 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-20 01:06:50,232 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-20 01:06:50,232 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-20 01:06:50,232 INFO L153 SettingsManager]: * Use SBE=true [2025-03-20 01:06:50,232 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-20 01:06:50,232 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-20 01:06:50,232 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-20 01:06:50,232 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-20 01:06:50,232 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-20 01:06:50,232 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-20 01:06:50,232 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-20 01:06:50,233 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-20 01:06:50,233 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-20 01:06:50,233 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-20 01:06:50,233 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-20 01:06:50,233 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-20 01:06:50,233 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-20 01:06:50,233 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-20 01:06:50,233 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-20 01:06:50,233 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-20 01:06:50,233 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-20 01:06:50,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-20 01:06:50,234 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-20 01:06:50,234 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-20 01:06:50,234 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-20 01:06:50,234 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-03-20 01:06:50,234 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-20 01:06:50,234 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-20 01:06:50,234 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-03-20 01:06:50,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-20 01:06:50,235 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-03-20 01:06:50,235 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-03-20 01:06:50,235 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-03-20 01:06:50,235 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/UGemCutter-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 -> GemCutter 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 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Partial Order Reduction in concurrent analysis -> PERSISTENT_SETS [2025-03-20 01:06:50,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-20 01:06:50,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-20 01:06:50,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-20 01:06:50,510 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-20 01:06:50,510 INFO L274 PluginConnector]: CDTParser initialized [2025-03-20 01:06:50,511 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2025-03-20 01:06:51,791 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/69b56c21b/279d8a53a02e401cac2d8163ef0e1332/FLAG2246e9a32 [2025-03-20 01:06:52,117 INFO L389 CDTParser]: Found 1 translation units. [2025-03-20 01:06:52,118 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2025-03-20 01:06:52,151 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/69b56c21b/279d8a53a02e401cac2d8163ef0e1332/FLAG2246e9a32 [2025-03-20 01:06:52,807 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/69b56c21b/279d8a53a02e401cac2d8163ef0e1332 [2025-03-20 01:06:52,808 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-20 01:06:52,809 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-20 01:06:52,810 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-20 01:06:52,810 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-20 01:06:52,813 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-20 01:06:52,813 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 01:06:52" (1/1) ... [2025-03-20 01:06:52,814 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14873794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:06:52, skipping insertion in model container [2025-03-20 01:06:52,814 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 01:06:52" (1/1) ... [2025-03-20 01:06:52,890 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-20 01:06:53,165 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5520,5533] [2025-03-20 01:06:56,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-20 01:06:56,406 INFO L200 MainTranslator]: Completed pre-run [2025-03-20 01:06:56,422 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5520,5533] [2025-03-20 01:06:56,488 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "b %b0, %1\n" : "+q" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] [2025-03-20 01:06:56,489 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "w %w0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] [2025-03-20 01:06:56,490 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "l %0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] [2025-03-20 01:06:56,490 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "q %q0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] [2025-03-20 01:06:56,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5817] [2025-03-20 01:06:56,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-20 01:06:56,906 INFO L204 MainTranslator]: Completed translation [2025-03-20 01:06:56,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:06:56 WrapperNode [2025-03-20 01:06:56,907 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-20 01:06:56,908 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-20 01:06:56,908 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-20 01:06:56,908 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-20 01:06:56,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:06:56" (1/1) ... [2025-03-20 01:06:56,963 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:06:56" (1/1) ... [2025-03-20 01:06:57,004 INFO L138 Inliner]: procedures = 1354, calls = 1479, calls flagged for inlining = 352, calls inlined = 18, statements flattened = 394 [2025-03-20 01:06:57,005 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-20 01:06:57,005 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-20 01:06:57,005 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-20 01:06:57,005 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-20 01:06:57,014 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:06:56" (1/1) ... [2025-03-20 01:06:57,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:06:56" (1/1) ... [2025-03-20 01:06:57,020 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:06:56" (1/1) ... [2025-03-20 01:06:57,020 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:06:56" (1/1) ... [2025-03-20 01:06:57,041 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:06:56" (1/1) ... [2025-03-20 01:06:57,046 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:06:56" (1/1) ... [2025-03-20 01:06:57,049 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:06:56" (1/1) ... [2025-03-20 01:06:57,058 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:06:56" (1/1) ... [2025-03-20 01:06:57,060 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:06:56" (1/1) ... [2025-03-20 01:06:57,068 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-20 01:06:57,072 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-20 01:06:57,072 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-20 01:06:57,072 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-20 01:06:57,073 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:06:56" (1/1) ... [2025-03-20 01:06:57,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-20 01:06:57,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 01:06:57,099 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-03-20 01:06:57,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-03-20 01:06:57,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-20 01:06:57,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-20 01:06:57,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-20 01:06:57,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-20 01:06:57,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-20 01:06:57,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-20 01:06:57,125 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2025-03-20 01:06:57,125 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2025-03-20 01:06:57,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-20 01:06:57,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-20 01:06:57,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-03-20 01:06:57,125 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2025-03-20 01:06:57,125 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2025-03-20 01:06:57,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-20 01:06:57,127 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-20 01:06:57,438 INFO L234 CfgBuilder]: Building ICFG [2025-03-20 01:06:57,440 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-20 01:06:57,880 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-20 01:06:57,880 INFO L283 CfgBuilder]: Performing block encoding [2025-03-20 01:06:58,265 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-20 01:06:58,265 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-20 01:06:58,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 01:06:58 BoogieIcfgContainer [2025-03-20 01:06:58,266 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-20 01:06:58,267 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-20 01:06:58,267 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-20 01:06:58,271 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-20 01:06:58,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 01:06:52" (1/3) ... [2025-03-20 01:06:58,273 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28340e9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 01:06:58, skipping insertion in model container [2025-03-20 01:06:58,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:06:56" (2/3) ... [2025-03-20 01:06:58,274 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28340e9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 01:06:58, skipping insertion in model container [2025-03-20 01:06:58,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 01:06:58" (3/3) ... [2025-03-20 01:06:58,275 INFO L128 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_write_nvram.i [2025-03-20 01:06:58,286 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-20 01:06:58,289 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG char_generic_nvram_read_nvram_write_nvram.i that has 3 procedures, 43 locations, 50 edges, 1 initial locations, 2 loop locations, and 2 error locations. [2025-03-20 01:06:58,289 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-20 01:06:58,353 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-20 01:06:58,404 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-20 01:06:58,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-03-20 01:06:58,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 01:06:58,408 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-03-20 01:06:58,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-03-20 01:06:58,588 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-20 01:06:58,594 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-03-20 01:06:58,601 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@55012135, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-20 01:06:58,602 INFO L341 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-20 01:06:58,840 INFO L791 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2025-03-20 01:06:58,840 INFO L791 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2025-03-20 01:06:58,845 INFO L422 BasicCegarLoop]: Path program histogram: [] [2025-03-20 01:06:58,846 INFO L320 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE (1/3) [2025-03-20 01:06:58,848 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-20 01:06:58,851 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-20 01:06:58,851 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == whoop_wrapper_write_nvramThread1of1ForFork1 ======== [2025-03-20 01:06:58,851 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@55012135, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-20 01:06:58,852 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-20 01:06:59,173 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-20 01:06:59,176 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 01:06:59,176 INFO L85 PathProgramCache]: Analyzing trace with hash -238976893, now seen corresponding path program 1 times [2025-03-20 01:06:59,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 01:06:59,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058792501] [2025-03-20 01:06:59,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 01:06:59,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 01:06:59,294 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-20 01:06:59,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-20 01:06:59,452 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 01:06:59,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 01:07:00,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-20 01:07:00,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 01:07:00,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058792501] [2025-03-20 01:07:00,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058792501] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 01:07:00,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 01:07:00,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-20 01:07:00,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938401329] [2025-03-20 01:07:00,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 01:07:00,368 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-20 01:07:00,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 01:07:00,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-20 01:07:00,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-20 01:07:00,380 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:07:00,381 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 01:07:00,382 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-20 01:07:00,382 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:07:00,579 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-20 01:07:00,579 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-20 01:07:00,580 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-20 01:07:00,580 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 01:07:00,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1503962853, now seen corresponding path program 1 times [2025-03-20 01:07:00,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 01:07:00,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628255870] [2025-03-20 01:07:00,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 01:07:00,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 01:07:00,616 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-20 01:07:00,706 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-20 01:07:00,709 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 01:07:00,709 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 01:07:03,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-20 01:07:03,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 01:07:03,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628255870] [2025-03-20 01:07:03,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628255870] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 01:07:03,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 01:07:03,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-20 01:07:03,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422016626] [2025-03-20 01:07:03,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 01:07:03,238 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-20 01:07:03,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 01:07:03,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-20 01:07:03,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-03-20 01:07:03,239 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:07:03,239 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 01:07:03,240 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-20 01:07:03,240 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-20 01:07:03,240 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:07:04,822 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-20 01:07:04,823 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-20 01:07:04,823 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-20 01:07:04,823 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-20 01:07:04,824 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 01:07:04,824 INFO L85 PathProgramCache]: Analyzing trace with hash -232839961, now seen corresponding path program 1 times [2025-03-20 01:07:04,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 01:07:04,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338212042] [2025-03-20 01:07:04,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 01:07:04,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 01:07:04,857 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-20 01:07:04,904 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-20 01:07:04,905 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 01:07:04,905 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 01:07:07,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-20 01:07:07,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 01:07:07,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338212042] [2025-03-20 01:07:07,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338212042] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 01:07:07,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 01:07:07,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-03-20 01:07:07,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375045400] [2025-03-20 01:07:07,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 01:07:07,234 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-20 01:07:07,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 01:07:07,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-20 01:07:07,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2025-03-20 01:07:07,236 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:07:07,236 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 01:07:07,236 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 14 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-20 01:07:07,236 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-20 01:07:07,237 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-03-20 01:07:07,237 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:07:09,642 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-20 01:07:09,642 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-20 01:07:09,643 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-20 01:07:09,643 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-20 01:07:09,643 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-20 01:07:09,643 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 01:07:09,644 INFO L85 PathProgramCache]: Analyzing trace with hash -224962633, now seen corresponding path program 2 times [2025-03-20 01:07:09,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 01:07:09,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173817247] [2025-03-20 01:07:09,645 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-20 01:07:09,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 01:07:09,678 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 2 equivalence classes. [2025-03-20 01:07:09,761 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-03-20 01:07:09,761 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-20 01:07:09,761 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 01:07:11,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-20 01:07:11,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 01:07:11,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173817247] [2025-03-20 01:07:11,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173817247] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 01:07:11,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 01:07:11,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-03-20 01:07:11,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010638130] [2025-03-20 01:07:11,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 01:07:11,219 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-20 01:07:11,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 01:07:11,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-20 01:07:11,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2025-03-20 01:07:11,219 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:07:11,219 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 01:07:11,220 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 14 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-20 01:07:11,220 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-20 01:07:11,220 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-03-20 01:07:11,220 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-20 01:07:11,220 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:07:12,526 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-20 01:07:12,526 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-20 01:07:12,526 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-20 01:07:12,527 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-20 01:07:12,527 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-20 01:07:12,527 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-20 01:07:12,527 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 01:07:12,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1581203319, now seen corresponding path program 3 times [2025-03-20 01:07:12,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 01:07:12,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833701204] [2025-03-20 01:07:12,527 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-20 01:07:12,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 01:07:12,554 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 26 statements into 2 equivalence classes. [2025-03-20 01:07:12,614 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-03-20 01:07:12,614 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-20 01:07:12,614 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 01:07:13,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-20 01:07:13,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 01:07:13,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833701204] [2025-03-20 01:07:13,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833701204] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 01:07:13,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 01:07:13,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-20 01:07:13,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143545408] [2025-03-20 01:07:13,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 01:07:13,820 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-20 01:07:13,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 01:07:13,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-20 01:07:13,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-03-20 01:07:13,820 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:07:13,820 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 01:07:13,821 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-20 01:07:13,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-20 01:07:13,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-03-20 01:07:13,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-20 01:07:13,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-03-20 01:07:13,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:07:15,741 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-20 01:07:15,742 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-20 01:07:15,742 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-20 01:07:15,742 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-20 01:07:15,742 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-20 01:07:15,742 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-20 01:07:15,743 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-20 01:07:15,743 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 01:07:15,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1523059951, now seen corresponding path program 4 times [2025-03-20 01:07:15,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 01:07:15,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989441639] [2025-03-20 01:07:15,743 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-20 01:07:15,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 01:07:15,773 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 26 statements into 2 equivalence classes. [2025-03-20 01:07:15,806 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-03-20 01:07:15,806 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-20 01:07:15,807 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 01:07:17,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-20 01:07:17,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 01:07:17,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989441639] [2025-03-20 01:07:17,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989441639] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 01:07:17,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 01:07:17,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-20 01:07:17,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283316476] [2025-03-20 01:07:17,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 01:07:17,395 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-20 01:07:17,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 01:07:17,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-20 01:07:17,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2025-03-20 01:07:17,395 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:07:17,395 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 01:07:17,395 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-20 01:07:17,395 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-20 01:07:17,395 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-03-20 01:07:17,395 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-20 01:07:17,395 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-03-20 01:07:17,395 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-03-20 01:07:17,395 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:07:19,273 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-20 01:07:19,274 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-20 01:07:19,274 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-20 01:07:19,274 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-20 01:07:19,274 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-20 01:07:19,274 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-20 01:07:19,274 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-20 01:07:19,275 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-20 01:07:19,275 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 01:07:19,275 INFO L85 PathProgramCache]: Analyzing trace with hash 180203464, now seen corresponding path program 1 times [2025-03-20 01:07:19,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 01:07:19,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824576137] [2025-03-20 01:07:19,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 01:07:19,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 01:07:19,304 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-20 01:07:19,339 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-20 01:07:19,339 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 01:07:19,339 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 01:07:20,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-20 01:07:20,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 01:07:20,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824576137] [2025-03-20 01:07:20,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824576137] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-20 01:07:20,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892146845] [2025-03-20 01:07:20,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 01:07:20,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 01:07:20,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 01:07:20,461 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-20 01:07:20,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-20 01:07:20,633 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-20 01:07:20,727 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-20 01:07:20,727 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 01:07:20,727 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 01:07:20,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 35 conjuncts are in the unsatisfiable core [2025-03-20 01:07:20,734 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-20 01:07:20,975 INFO L354 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 55 treesize of output 35 [2025-03-20 01:07:21,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-20 01:07:21,082 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-20 01:07:21,303 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-20 01:07:21,304 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 58 [2025-03-20 01:07:21,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-20 01:07:21,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892146845] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-20 01:07:21,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-20 01:07:21,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9, 9] total 28 [2025-03-20 01:07:21,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405864117] [2025-03-20 01:07:21,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-20 01:07:21,383 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-03-20 01:07:21,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 01:07:21,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-03-20 01:07:21,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=675, Unknown=0, NotChecked=0, Total=756 [2025-03-20 01:07:21,383 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:07:21,383 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 01:07:21,383 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.0714285714285716) internal successors, (58), 28 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-20 01:07:21,384 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-03-20 01:07:21,384 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-03-20 01:07:21,384 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-20 01:07:21,384 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-03-20 01:07:21,384 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-03-20 01:07:21,384 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-03-20 01:07:21,384 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:07:23,655 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-20 01:07:23,655 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-20 01:07:23,655 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-20 01:07:23,655 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-20 01:07:23,655 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-20 01:07:23,655 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-20 01:07:23,656 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-20 01:07:23,663 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-20 01:07:23,856 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-03-20 01:07:23,856 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-20 01:07:23,857 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 01:07:23,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1055293174, now seen corresponding path program 1 times [2025-03-20 01:07:23,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 01:07:23,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276830439] [2025-03-20 01:07:23,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 01:07:23,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 01:07:23,881 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-20 01:07:23,935 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-20 01:07:23,936 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 01:07:23,936 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 01:07:27,020 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-20 01:07:27,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 01:07:27,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276830439] [2025-03-20 01:07:27,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276830439] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-20 01:07:27,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052320091] [2025-03-20 01:07:27,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 01:07:27,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 01:07:27,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 01:07:27,023 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-20 01:07:27,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-20 01:07:27,176 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-20 01:07:27,304 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-20 01:07:27,304 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 01:07:27,304 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 01:07:27,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 43 conjuncts are in the unsatisfiable core [2025-03-20 01:07:27,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-20 01:07:27,323 INFO L354 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 15 treesize of output 1 [2025-03-20 01:07:27,760 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 59 [2025-03-20 01:07:27,983 INFO L354 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 15 treesize of output 1 [2025-03-20 01:07:28,036 INFO L354 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 103 treesize of output 71 [2025-03-20 01:07:28,160 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-20 01:07:28,160 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-20 01:07:28,251 INFO L354 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 36 treesize of output 32 [2025-03-20 01:07:28,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-20 01:07:28,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052320091] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-20 01:07:28,765 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-20 01:07:28,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 15, 15] total 47 [2025-03-20 01:07:28,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69916833] [2025-03-20 01:07:28,765 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-20 01:07:28,765 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2025-03-20 01:07:28,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 01:07:28,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2025-03-20 01:07:28,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=1966, Unknown=0, NotChecked=0, Total=2162 [2025-03-20 01:07:28,767 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:07:28,767 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 01:07:28,767 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 1.7234042553191489) internal successors, (81), 47 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-20 01:07:28,767 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-03-20 01:07:28,767 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-03-20 01:07:28,767 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-20 01:07:28,767 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-03-20 01:07:28,767 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-03-20 01:07:28,767 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-03-20 01:07:28,767 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-03-20 01:07:28,767 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:07:35,884 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-20 01:07:35,884 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-20 01:07:35,884 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-20 01:07:35,884 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-20 01:07:35,884 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-20 01:07:35,884 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-20 01:07:35,884 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-20 01:07:35,885 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-03-20 01:07:35,892 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-20 01:07:36,085 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 01:07:36,085 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-20 01:07:36,085 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 01:07:36,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1338378700, now seen corresponding path program 2 times [2025-03-20 01:07:36,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 01:07:36,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275589491] [2025-03-20 01:07:36,086 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-20 01:07:36,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 01:07:36,112 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 30 statements into 2 equivalence classes. [2025-03-20 01:07:36,187 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 30 of 30 statements. [2025-03-20 01:07:36,187 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-20 01:07:36,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 01:07:38,676 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-20 01:07:38,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 01:07:38,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275589491] [2025-03-20 01:07:38,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275589491] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-20 01:07:38,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153200522] [2025-03-20 01:07:38,676 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-20 01:07:38,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 01:07:38,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 01:07:38,678 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-20 01:07:38,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-20 01:07:38,832 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 30 statements into 2 equivalence classes. [2025-03-20 01:07:38,943 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 30 of 30 statements. [2025-03-20 01:07:38,943 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-20 01:07:38,943 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 01:07:38,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 43 conjuncts are in the unsatisfiable core [2025-03-20 01:07:38,948 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-20 01:07:39,237 INFO L354 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 65 treesize of output 45 [2025-03-20 01:07:39,559 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-20 01:07:39,559 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-20 01:07:39,935 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-20 01:07:39,935 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 66 [2025-03-20 01:07:40,022 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-20 01:07:40,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153200522] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-20 01:07:40,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-20 01:07:40,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 33 [2025-03-20 01:07:40,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084677644] [2025-03-20 01:07:40,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-20 01:07:40,022 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2025-03-20 01:07:40,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 01:07:40,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2025-03-20 01:07:40,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=971, Unknown=0, NotChecked=0, Total=1056 [2025-03-20 01:07:40,023 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:07:40,023 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 01:07:40,023 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.0606060606060606) internal successors, (68), 33 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-20 01:07:40,023 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-03-20 01:07:40,024 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-03-20 01:07:40,024 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-20 01:07:40,024 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-03-20 01:07:40,024 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-03-20 01:07:40,024 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-03-20 01:07:40,024 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-03-20 01:07:40,024 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2025-03-20 01:07:40,024 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:07:47,582 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-20 01:07:47,582 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-20 01:07:47,582 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-20 01:07:47,582 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-20 01:07:47,582 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-20 01:07:47,582 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-20 01:07:47,582 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-20 01:07:47,583 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2025-03-20 01:07:47,583 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-03-20 01:07:47,590 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-20 01:07:47,783 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 01:07:47,783 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-20 01:07:47,784 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 01:07:47,784 INFO L85 PathProgramCache]: Analyzing trace with hash 670419946, now seen corresponding path program 2 times [2025-03-20 01:07:47,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 01:07:47,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9517507] [2025-03-20 01:07:47,784 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-20 01:07:47,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 01:07:47,809 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 2 equivalence classes. [2025-03-20 01:07:47,844 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 24 of 26 statements. [2025-03-20 01:07:47,844 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-20 01:07:47,844 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 01:07:48,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-20 01:07:48,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 01:07:48,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9517507] [2025-03-20 01:07:48,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9517507] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 01:07:48,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 01:07:48,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-20 01:07:48,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84876209] [2025-03-20 01:07:48,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 01:07:48,446 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-20 01:07:48,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 01:07:48,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-20 01:07:48,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2025-03-20 01:07:48,447 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:07:48,447 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 01:07:48,447 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-20 01:07:48,447 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-03-20 01:07:48,447 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-03-20 01:07:48,447 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-20 01:07:48,447 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-03-20 01:07:48,448 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-03-20 01:07:48,448 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-03-20 01:07:48,448 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-03-20 01:07:48,448 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2025-03-20 01:07:48,448 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2025-03-20 01:07:48,448 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 01:07:49,081 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-20 01:07:49,081 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-20 01:07:49,081 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-20 01:07:49,081 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-20 01:07:49,081 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-20 01:07:49,081 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-20 01:07:49,081 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-20 01:07:49,081 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2025-03-20 01:07:49,081 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-03-20 01:07:49,082 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-20 01:07:49,082 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-20 01:07:49,082 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-20 01:07:49,082 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 01:07:49,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1891310764, now seen corresponding path program 3 times [2025-03-20 01:07:49,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 01:07:49,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214005595] [2025-03-20 01:07:49,082 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-20 01:07:49,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 01:07:49,106 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 28 statements into 2 equivalence classes. [2025-03-20 01:07:49,154 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 28 of 28 statements. [2025-03-20 01:07:49,155 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-20 01:07:49,155 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-20 01:07:49,155 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-20 01:07:49,163 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-20 01:07:49,190 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-20 01:07:49,190 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 01:07:49,190 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-20 01:07:49,237 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-20 01:07:49,237 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-20 01:07:49,238 INFO L791 garLoopResultBuilder]: Registering result UNSAFE for location whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-20 01:07:49,238 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-20 01:07:49,239 INFO L422 BasicCegarLoop]: Path program histogram: [4, 3, 2, 1, 1] [2025-03-20 01:07:49,239 INFO L320 ceAbstractionStarter]: Result for error location whoop_wrapper_write_nvramThread1of1ForFork1 was UNSAFE (2/3) [2025-03-20 01:07:49,406 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-20 01:07:49,406 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-03-20 01:07:49,423 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-03-20 01:07:49,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 01:07:49 BasicIcfg [2025-03-20 01:07:49,423 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-20 01:07:49,424 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-20 01:07:49,424 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-20 01:07:49,424 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-20 01:07:49,425 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 01:06:58" (3/4) ... [2025-03-20 01:07:49,425 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-20 01:07:49,551 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 38. [2025-03-20 01:07:49,606 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-03-20 01:07:49,607 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2025-03-20 01:07:49,607 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-20 01:07:49,607 INFO L158 Benchmark]: Toolchain (without parser) took 56798.13ms. Allocated memory was 109.1MB in the beginning and 310.4MB in the end (delta: 201.3MB). Free memory was 73.2MB in the beginning and 112.2MB in the end (delta: -39.0MB). Peak memory consumption was 159.7MB. Max. memory is 16.1GB. [2025-03-20 01:07:49,608 INFO L158 Benchmark]: CDTParser took 0.55ms. Allocated memory is still 83.9MB. Free memory is still 61.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-20 01:07:49,608 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4097.23ms. Allocated memory was 109.1MB in the beginning and 201.3MB in the end (delta: 92.3MB). Free memory was 72.8MB in the beginning and 63.1MB in the end (delta: 9.6MB). Peak memory consumption was 109.4MB. Max. memory is 16.1GB. [2025-03-20 01:07:49,608 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.89ms. Allocated memory is still 201.3MB. Free memory was 63.1MB in the beginning and 53.3MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-20 01:07:49,608 INFO L158 Benchmark]: Boogie Preprocessor took 66.11ms. Allocated memory is still 201.3MB. Free memory was 53.3MB in the beginning and 49.2MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-20 01:07:49,608 INFO L158 Benchmark]: RCFGBuilder took 1193.78ms. Allocated memory is still 201.3MB. Free memory was 49.2MB in the beginning and 54.9MB in the end (delta: -5.7MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2025-03-20 01:07:49,609 INFO L158 Benchmark]: TraceAbstraction took 51156.32ms. Allocated memory was 201.3MB in the beginning and 310.4MB in the end (delta: 109.1MB). Free memory was 53.1MB in the beginning and 169.0MB in the end (delta: -115.9MB). Peak memory consumption was 70.4MB. Max. memory is 16.1GB. [2025-03-20 01:07:49,609 INFO L158 Benchmark]: Witness Printer took 182.92ms. Allocated memory is still 310.4MB. Free memory was 169.0MB in the beginning and 112.2MB in the end (delta: 56.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-03-20 01:07:49,610 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55ms. Allocated memory is still 83.9MB. Free memory is still 61.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4097.23ms. Allocated memory was 109.1MB in the beginning and 201.3MB in the end (delta: 92.3MB). Free memory was 72.8MB in the beginning and 63.1MB in the end (delta: 9.6MB). Peak memory consumption was 109.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.89ms. Allocated memory is still 201.3MB. Free memory was 63.1MB in the beginning and 53.3MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.11ms. Allocated memory is still 201.3MB. Free memory was 53.3MB in the beginning and 49.2MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1193.78ms. Allocated memory is still 201.3MB. Free memory was 49.2MB in the beginning and 54.9MB in the end (delta: -5.7MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. * TraceAbstraction took 51156.32ms. Allocated memory was 201.3MB in the beginning and 310.4MB in the end (delta: 109.1MB). Free memory was 53.1MB in the beginning and 169.0MB in the end (delta: -115.9MB). Peak memory consumption was 70.4MB. Max. memory is 16.1GB. * Witness Printer took 182.92ms. Allocated memory is still 310.4MB. Free memory was 169.0MB in the beginning and 112.2MB in the end (delta: 56.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 3228]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "b %b0, %1\n" : "+q" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] - GenericResultAtLocation [Line: 3228]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "w %w0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] - GenericResultAtLocation [Line: 3228]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "l %0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] - GenericResultAtLocation [Line: 3228]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "q %q0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] - GenericResultAtLocation [Line: 5817]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile("ud2"); [5817] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 153, independent: 151, independent conditional: 0, independent unconditional: 151, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 153, independent: 151, independent conditional: 0, independent unconditional: 151, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 153, independent: 151, independent conditional: 0, independent unconditional: 151, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 153, independent: 150, independent conditional: 0, independent unconditional: 150, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 206, independent: 43, independent conditional: 0, independent unconditional: 43, dependent: 163, dependent conditional: 0, dependent unconditional: 163, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 153, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 153, unknown conditional: 0, unknown unconditional: 153] , Statistics on independence cache: Total cache size (in pairs): 153, Positive cache size: 151, Positive conditional cache size: 0, Positive unconditional cache size: 151, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 0, Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 4, Number of trivial persistent sets: 2, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 153, independent: 151, independent conditional: 0, independent unconditional: 151, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 153, independent: 151, independent conditional: 0, independent unconditional: 151, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 153, independent: 151, independent conditional: 0, independent unconditional: 151, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 153, independent: 150, independent conditional: 0, independent unconditional: 150, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 206, independent: 43, independent conditional: 0, independent unconditional: 43, dependent: 163, dependent conditional: 0, dependent unconditional: 163, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 153, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 153, unknown conditional: 0, unknown unconditional: 153] , Statistics on independence cache: Total cache size (in pairs): 153, Positive cache size: 151, Positive conditional cache size: 0, Positive unconditional cache size: 151, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 0 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 826, independent: 812, independent conditional: 0, independent unconditional: 812, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 826, independent: 812, independent conditional: 0, independent unconditional: 812, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 693, independent: 681, independent conditional: 0, independent unconditional: 681, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 693, independent: 681, independent conditional: 0, independent unconditional: 681, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 12, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 12, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 422, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 422, dependent conditional: 0, dependent unconditional: 422, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 826, independent: 131, independent conditional: 0, independent unconditional: 131, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 693, unknown conditional: 0, unknown unconditional: 693] , Statistics on independence cache: Total cache size (in pairs): 846, Positive cache size: 832, Positive conditional cache size: 0, Positive unconditional cache size: 832, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 0, Persistent sets #1 benchmarks: Persistent set computation time: 0.5s, Number of persistent set computation: 68, Number of trivial persistent sets: 8, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 826, independent: 812, independent conditional: 0, independent unconditional: 812, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 826, independent: 812, independent conditional: 0, independent unconditional: 812, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 693, independent: 681, independent conditional: 0, independent unconditional: 681, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 693, independent: 681, independent conditional: 0, independent unconditional: 681, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 12, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 12, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 422, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 422, dependent conditional: 0, dependent unconditional: 422, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 826, independent: 131, independent conditional: 0, independent unconditional: 131, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 693, unknown conditional: 0, unknown unconditional: 693] , Statistics on independence cache: Total cache size (in pairs): 846, Positive cache size: 832, Positive conditional cache size: 0, Positive unconditional cache size: 832, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 0 - CounterExampleResult [Line: 175]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L247] 0 unsigned long jiffies; [L6522] 0 const unsigned int default_alloc_size = 4; [L6692] 0 static struct mutex nvram_mutex = { 1, 0 }; [L6693] 0 static ssize_t nvram_len; [L6790-L6796] 0 struct file_operations nvram_fops = { .owner = ((struct module *)0), .llseek = nvram_llseek, .read = read_nvram, .write = write_nvram, .unlocked_ioctl = nvram_unlocked_ioctl, }; [L6797-L6801] 0 static struct miscdevice nvram_dev = { 144, "nvram", &nvram_fops }; [L6820] 0 int (* _whoop_init)(void) = nvram_init; [L6821] 0 void (* _whoop_exit)(void) = nvram_cleanup; [L6822] 0 struct inode *whoop_inode_0; [L6823] 0 struct file *whoop_file_0; [L6824] 0 struct inode *whoop_inode_1; [L6825] 0 struct file *whoop_file_1; [L6826] 0 struct inode *whoop_inode_2; [L6827] 0 struct file *whoop_file_2; [L6828] 0 struct inode *whoop_inode_3; [L6829] 0 struct file *whoop_file_3; [L6830] 0 struct inode *whoop_inode_4; [L6831] 0 struct file *whoop_file_4; [L6832] 0 struct pci_dev *whoop_pci_dev; [L6833] 0 char *whoop_buf; [L6834] 0 struct platform_device *whoop_platform_device; [L6835] 0 struct vm_area_struct *whoop_vm_area_struct; [L6836] 0 struct cx_dev *whoop_cx_dev; [L6837] 0 poll_table *whoop_poll_table; [L6838] 0 loff_t *whoop_loff_t; [L6839] 0 int whoop_int; [L6867] 0 whoop_inode_0 = (struct inode *) malloc(sizeof(struct inode)) [L6868] 0 whoop_file_0 = (struct file *) malloc(sizeof(struct file)) [L6869] 0 whoop_inode_1 = (struct inode *) malloc(sizeof(struct inode)) [L6870] 0 whoop_file_1 = (struct file *) malloc(sizeof(struct file)) [L6871] 0 whoop_inode_2 = (struct inode *) malloc(sizeof(struct inode)) [L6872] 0 whoop_file_2 = (struct file *) malloc(sizeof(struct file)) [L6873] 0 whoop_inode_3 = (struct inode *) malloc(sizeof(struct inode)) [L6874] 0 whoop_file_3 = (struct file *) malloc(sizeof(struct file)) [L6875] 0 whoop_inode_4 = (struct inode *) malloc(sizeof(struct inode)) [L6876] 0 whoop_file_4 = (struct file *) malloc(sizeof(struct file)) [L6877] 0 whoop_pci_dev = (struct pci_dev *) malloc(sizeof(struct pci_dev)) [L6878] 0 whoop_buf = (char *) malloc(sizeof(char)) [L6879] 0 whoop_platform_device = (struct platform_device *) malloc(sizeof(struct platform_device)) [L6880] 0 whoop_vm_area_struct = (struct vm_area_struct *) malloc(sizeof(struct vm_area_struct)) [L6881] 0 whoop_cx_dev = (struct cx_dev *) malloc(sizeof(struct cx_dev)) [L6882] 0 whoop_poll_table = (poll_table *) malloc(sizeof(poll_table)) [L6883] 0 whoop_loff_t = (loff_t *) malloc(sizeof(loff_t)) [L6884] 0 *whoop_loff_t = __VERIFIER_nondet_longlong() [L6885] 0 whoop_int = __VERIFIER_nondet_int() [L6886] CALL 0 assume_abort_if_not(whoop_int >= 0) [L171] COND FALSE 0 !(!cond) [L6886] RET 0 assume_abort_if_not(whoop_int >= 0) [L6887] CALL, EXPR 0 _whoop_init() [L6804] 0 int ret = 0; [L6805-L6806] CALL 0 printk("\001" "6" "Generic non-volatile memory driver v%s\n", "1.1") [L6650] 0 return __VERIFIER_nondet_int(); [L6805-L6806] RET 0 printk("\001" "6" "Generic non-volatile memory driver v%s\n", "1.1") [L6807] CALL, EXPR 0 misc_register(&nvram_dev) [L6624] 0 return __VERIFIER_nondet_int(); [L6807] RET, EXPR 0 misc_register(&nvram_dev) [L6807] 0 ret = misc_register(&nvram_dev) [L6808] COND FALSE 0 !(ret != 0) [L6810] CALL, EXPR 0 nvram_get_size() [L6632] 0 return __VERIFIER_nondet_long(); [L6810] RET, EXPR 0 nvram_get_size() [L6810] 0 nvram_len = nvram_get_size() [L6811] COND FALSE 0 !(nvram_len < 0) [L6814] 0 return ret; [L6887] RET, EXPR 0 _whoop_init() [L6887] 0 int _whoop_init_result = _whoop_init(); [L6888] 0 pthread_t pthread_t_write_nvram; [L6889] 0 pthread_t pthread_t_read_nvram; [L6890] FCALL, FORK 0 pthread_create(&pthread_t_write_nvram, ((void *)0), whoop_wrapper_write_nvram, ((void *)0)) VAL [_whoop_exit={-1:5}, _whoop_init={-1:4}, _whoop_init_result=0, default_alloc_size=4, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=2, nvram_mutex={7:0}, pthread_t_write_nvram=-1, whoop_buf={-10:0}, whoop_cx_dev={-13:0}, whoop_file_0={-14:0}, whoop_file_1={-17:0}, whoop_file_2={-3:0}, whoop_file_3={-6:0}, whoop_file_4={-18:0}, whoop_inode_0={-4:0}, whoop_inode_1={-9:0}, whoop_inode_2={-8:0}, whoop_inode_3={-11:0}, whoop_inode_4={-12:0}, whoop_int=1, whoop_loff_t={-2:0}, whoop_pci_dev={-5:0}, whoop_platform_device={-16:0}, whoop_poll_table={-7:0}, whoop_vm_area_struct={-15:0}] [L6842] CALL 1 write_nvram(whoop_file_0, whoop_buf, whoop_int, whoop_loff_t) [L6744] 1 unsigned int i; [L6745] 1 const char *p = buf; [L6746] 1 char c = __VERIFIER_nondet_char(); [L6747] CALL, EXPR 1 access_ok(0, buf, count) [L6551] 1 return __VERIFIER_nondet_int(); [L6747] RET, EXPR 1 access_ok(0, buf, count) [L6747] COND FALSE 1 !(!access_ok(0, buf, count)) [L6750] EXPR 1 \read(*ppos) [L6750] 1 ssize_t lppos = *ppos; [L6752] COND FALSE 1 !(lppos >= nvram_len) VAL [\at(buf, Pre)={-10:0}, \at(count, Pre)=1, \at(file, Pre)={-14:0}, \at(ppos, Pre)={-2:0}, _whoop_exit={-1:5}, _whoop_init={-1:4}, buf={-10:0}, c=0, count=1, default_alloc_size=4, file={-14:0}, jiffies=0, lppos=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=2, nvram_mutex={7:0}, p={-10:0}, ppos={-2:0}, whoop_buf={-10:0}, whoop_cx_dev={-13:0}, whoop_file_0={-14:0}, whoop_file_1={-17:0}, whoop_file_2={-3:0}, whoop_file_3={-6:0}, whoop_file_4={-18:0}, whoop_inode_0={-4:0}, whoop_inode_1={-9:0}, whoop_inode_2={-8:0}, whoop_inode_3={-11:0}, whoop_inode_4={-12:0}, whoop_int=1, whoop_loff_t={-2:0}, whoop_pci_dev={-5:0}, whoop_platform_device={-16:0}, whoop_poll_table={-7:0}, whoop_vm_area_struct={-15:0}] [L6755] EXPR 1 \read(*ppos) [L6755] 1 lppos = *ppos [L6757] 1 i = lppos VAL [\at(buf, Pre)={-10:0}, \at(count, Pre)=1, \at(file, Pre)={-14:0}, \at(ppos, Pre)={-2:0}, _whoop_exit={-1:5}, _whoop_init={-1:4}, buf={-10:0}, c=0, count=1, default_alloc_size=4, file={-14:0}, i=0, jiffies=0, lppos=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=2, nvram_mutex={7:0}, p={-10:0}, ppos={-2:0}, whoop_buf={-10:0}, whoop_cx_dev={-13:0}, whoop_file_0={-14:0}, whoop_file_1={-17:0}, whoop_file_2={-3:0}, whoop_file_3={-6:0}, whoop_file_4={-18:0}, whoop_inode_0={-4:0}, whoop_inode_1={-9:0}, whoop_inode_2={-8:0}, whoop_inode_3={-11:0}, whoop_inode_4={-12:0}, whoop_int=1, whoop_loff_t={-2:0}, whoop_pci_dev={-5:0}, whoop_platform_device={-16:0}, whoop_poll_table={-7:0}, whoop_vm_area_struct={-15:0}] [L6757] COND TRUE 1 count > 0 && i < nvram_len [L6758] CALL 1 __get_user(c, p) [L6535] 1 return __VERIFIER_nondet_int(); [L6758] RET 1 __get_user(c, p) [L6758] COND FALSE 1 !(__get_user(c, p)) [L6760] FCALL 1 nvram_write_byte(c, i) [L6757] 1 ++i [L6757] 1 ++p [L6757] 1 --count VAL [\at(buf, Pre)={-10:0}, \at(count, Pre)=1, \at(file, Pre)={-14:0}, \at(ppos, Pre)={-2:0}, _whoop_exit={-1:5}, _whoop_init={-1:4}, buf={-10:0}, c=0, count=0, default_alloc_size=4, file={-14:0}, i=1, jiffies=0, lppos=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=2, nvram_mutex={7:0}, p={-10:1}, ppos={-2:0}, whoop_buf={-10:0}, whoop_cx_dev={-13:0}, whoop_file_0={-14:0}, whoop_file_1={-17:0}, whoop_file_2={-3:0}, whoop_file_3={-6:0}, whoop_file_4={-18:0}, whoop_inode_0={-4:0}, whoop_inode_1={-9:0}, whoop_inode_2={-8:0}, whoop_inode_3={-11:0}, whoop_inode_4={-12:0}, whoop_int=1, whoop_loff_t={-2:0}, whoop_pci_dev={-5:0}, whoop_platform_device={-16:0}, whoop_poll_table={-7:0}, whoop_vm_area_struct={-15:0}] [L6757] COND FALSE 1 !(count > 0 && i < nvram_len) VAL [\at(buf, Pre)={-10:0}, \at(count, Pre)=1, \at(file, Pre)={-14:0}, \at(ppos, Pre)={-2:0}, _whoop_exit={-1:5}, _whoop_init={-1:4}, buf={-10:0}, c=0, count=0, default_alloc_size=4, file={-14:0}, i=1, jiffies=0, lppos=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=2, nvram_mutex={7:0}, p={-10:1}, ppos={-2:0}, whoop_buf={-10:0}, whoop_cx_dev={-13:0}, whoop_file_0={-14:0}, whoop_file_1={-17:0}, whoop_file_2={-3:0}, whoop_file_3={-6:0}, whoop_file_4={-18:0}, whoop_inode_0={-4:0}, whoop_inode_1={-9:0}, whoop_inode_2={-8:0}, whoop_inode_3={-11:0}, whoop_inode_4={-12:0}, whoop_int=1, whoop_loff_t={-2:0}, whoop_pci_dev={-5:0}, whoop_platform_device={-16:0}, whoop_poll_table={-7:0}, whoop_vm_area_struct={-15:0}] [L6891] FCALL, FORK 0 pthread_create(&pthread_t_read_nvram, ((void *)0), whoop_wrapper_read_nvram, ((void *)0)) VAL [_whoop_exit={-1:5}, _whoop_init={-1:4}, _whoop_init_result=0, default_alloc_size=4, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=2, nvram_mutex={7:0}, pthread_t_read_nvram=0, pthread_t_write_nvram=-1, whoop_buf={-10:0}, whoop_cx_dev={-13:0}, whoop_file_0={-14:0}, whoop_file_1={-17:0}, whoop_file_2={-3:0}, whoop_file_3={-6:0}, whoop_file_4={-18:0}, whoop_inode_0={-4:0}, whoop_inode_1={-9:0}, whoop_inode_2={-8:0}, whoop_inode_3={-11:0}, whoop_inode_4={-12:0}, whoop_int=1, whoop_loff_t={-2:0}, whoop_pci_dev={-5:0}, whoop_platform_device={-16:0}, whoop_poll_table={-7:0}, whoop_vm_area_struct={-15:0}] [L6847] CALL 2 read_nvram(whoop_file_1, whoop_buf, whoop_int, whoop_loff_t) [L6717] 2 unsigned int i; [L6718] 2 char *p = buf; [L6719] CALL, EXPR 2 access_ok(1, buf, count) [L6551] 2 return __VERIFIER_nondet_int(); [L6719] RET, EXPR 2 access_ok(1, buf, count) [L6719] COND FALSE 2 !(!access_ok(1, buf, count)) [L6722] EXPR 2 \read(*ppos) [L6722] 2 ssize_t lppos = *ppos; [L6724] COND FALSE 2 !(lppos >= nvram_len) VAL [\at(buf, Pre)={-10:0}, \at(count, Pre)=1, \at(file, Pre)={-17:0}, \at(ppos, Pre)={-2:0}, _whoop_exit={-1:5}, _whoop_init={-1:4}, buf={-10:0}, count=1, default_alloc_size=4, file={-17:0}, jiffies=0, lppos=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=2, nvram_mutex={7:0}, p={-10:0}, ppos={-2:0}, whoop_buf={-10:0}, whoop_cx_dev={-13:0}, whoop_file_0={-14:0}, whoop_file_1={-17:0}, whoop_file_2={-3:0}, whoop_file_3={-6:0}, whoop_file_4={-18:0}, whoop_inode_0={-4:0}, whoop_inode_1={-9:0}, whoop_inode_2={-8:0}, whoop_inode_3={-11:0}, whoop_inode_4={-12:0}, whoop_int=1, whoop_loff_t={-2:0}, whoop_pci_dev={-5:0}, whoop_platform_device={-16:0}, whoop_poll_table={-7:0}, whoop_vm_area_struct={-15:0}] [L6763] 1 *ppos = i VAL [\at(buf, Pre)={-10:0}, \at(count, Pre)=1, \at(file, Pre)={-14:0}, \at(ppos, Pre)={-2:0}, _whoop_exit={-1:5}, _whoop_init={-1:4}, buf={-10:0}, c=0, count=0, default_alloc_size=4, file={-14:0}, i=1, jiffies=0, lppos=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=2, nvram_mutex={7:0}, p={-10:1}, ppos={-2:0}, whoop_buf={-10:0}, whoop_cx_dev={-13:0}, whoop_file_0={-14:0}, whoop_file_1={-17:0}, whoop_file_2={-3:0}, whoop_file_3={-6:0}, whoop_file_4={-18:0}, whoop_inode_0={-4:0}, whoop_inode_1={-9:0}, whoop_inode_2={-8:0}, whoop_inode_3={-11:0}, whoop_inode_4={-12:0}, whoop_int=1, whoop_loff_t={-2:0}, whoop_pci_dev={-5:0}, whoop_platform_device={-16:0}, whoop_poll_table={-7:0}, whoop_vm_area_struct={-15:0}] [L6727] EXPR 2 \read(*ppos) [L6727] 2 lppos = *ppos [L6729] 2 i = lppos VAL [\at(buf, Pre)={-10:0}, \at(count, Pre)=1, \at(file, Pre)={-17:0}, \at(ppos, Pre)={-2:0}, _whoop_exit={-1:5}, _whoop_init={-1:4}, buf={-10:0}, count=1, default_alloc_size=4, file={-17:0}, i=1, jiffies=0, lppos=1, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=2, nvram_mutex={7:0}, p={-10:0}, ppos={-2:0}, whoop_buf={-10:0}, whoop_cx_dev={-13:0}, whoop_file_0={-14:0}, whoop_file_1={-17:0}, whoop_file_2={-3:0}, whoop_file_3={-6:0}, whoop_file_4={-18:0}, whoop_inode_0={-4:0}, whoop_inode_1={-9:0}, whoop_inode_2={-8:0}, whoop_inode_3={-11:0}, whoop_inode_4={-12:0}, whoop_int=1, whoop_loff_t={-2:0}, whoop_pci_dev={-5:0}, whoop_platform_device={-16:0}, whoop_poll_table={-7:0}, whoop_vm_area_struct={-15:0}] [L6729] COND TRUE 2 count > 0 && i < nvram_len [L6730] CALL, EXPR 2 nvram_read_byte(i) [L6636] 2 return __VERIFIER_nondet_uchar(); [L6730] RET, EXPR 2 nvram_read_byte(i) [L6730] CALL 2 __put_user(nvram_read_byte(i), p) [L6543] 2 return __VERIFIER_nondet_int(); [L6730] RET 2 __put_user(nvram_read_byte(i), p) [L6730] COND FALSE 2 !(__put_user(nvram_read_byte(i), p)) [L6729] 2 ++i [L6729] 2 ++p [L6729] 2 --count VAL [\at(buf, Pre)={-10:0}, \at(count, Pre)=1, \at(file, Pre)={-17:0}, \at(ppos, Pre)={-2:0}, _whoop_exit={-1:5}, _whoop_init={-1:4}, buf={-10:0}, count=0, default_alloc_size=4, file={-17:0}, i=2, jiffies=0, lppos=1, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=2, nvram_mutex={7:0}, p={-10:1}, ppos={-2:0}, whoop_buf={-10:0}, whoop_cx_dev={-13:0}, whoop_file_0={-14:0}, whoop_file_1={-17:0}, whoop_file_2={-3:0}, whoop_file_3={-6:0}, whoop_file_4={-18:0}, whoop_inode_0={-4:0}, whoop_inode_1={-9:0}, whoop_inode_2={-8:0}, whoop_inode_3={-11:0}, whoop_inode_4={-12:0}, whoop_int=1, whoop_loff_t={-2:0}, whoop_pci_dev={-5:0}, whoop_platform_device={-16:0}, whoop_poll_table={-7:0}, whoop_vm_area_struct={-15:0}] [L6729] COND FALSE 2 !(count > 0 && i < nvram_len) VAL [\at(buf, Pre)={-10:0}, \at(count, Pre)=1, \at(file, Pre)={-17:0}, \at(ppos, Pre)={-2:0}, _whoop_exit={-1:5}, _whoop_init={-1:4}, buf={-10:0}, count=0, default_alloc_size=4, file={-17:0}, i=2, jiffies=0, lppos=1, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=2, nvram_mutex={7:0}, p={-10:1}, ppos={-2:0}, whoop_buf={-10:0}, whoop_cx_dev={-13:0}, whoop_file_0={-14:0}, whoop_file_1={-17:0}, whoop_file_2={-3:0}, whoop_file_3={-6:0}, whoop_file_4={-18:0}, whoop_inode_0={-4:0}, whoop_inode_1={-9:0}, whoop_inode_2={-8:0}, whoop_inode_3={-11:0}, whoop_inode_4={-12:0}, whoop_int=1, whoop_loff_t={-2:0}, whoop_pci_dev={-5:0}, whoop_platform_device={-16:0}, whoop_poll_table={-7:0}, whoop_vm_area_struct={-15:0}] [L6733] 2 *ppos = i VAL [\at(buf, Pre)={-10:0}, \at(count, Pre)=1, \at(file, Pre)={-17:0}, \at(ppos, Pre)={-2:0}, _whoop_exit={-1:5}, _whoop_init={-1:4}, buf={-10:0}, count=0, default_alloc_size=4, file={-17:0}, i=2, jiffies=0, lppos=1, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=2, nvram_mutex={7:0}, p={-10:1}, ppos={-2:0}, whoop_buf={-10:0}, whoop_cx_dev={-13:0}, whoop_file_0={-14:0}, whoop_file_1={-17:0}, whoop_file_2={-3:0}, whoop_file_3={-6:0}, whoop_file_4={-18:0}, whoop_inode_0={-4:0}, whoop_inode_1={-9:0}, whoop_inode_2={-8:0}, whoop_inode_3={-11:0}, whoop_inode_4={-12:0}, whoop_int=1, whoop_loff_t={-2:0}, whoop_pci_dev={-5:0}, whoop_platform_device={-16:0}, whoop_poll_table={-7:0}, whoop_vm_area_struct={-15:0}] [L6766] EXPR 1 \read(*ppos) [L6766] 1 lppos = *ppos [L6768] CALL 1 __VERIFIER_assert(lppos == i) [L174] COND TRUE 1 !(cond) VAL [\at(cond, Pre)=0, _whoop_exit={-1:5}, _whoop_init={-1:4}, cond=0, default_alloc_size=4, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=2, nvram_mutex={7:0}, whoop_buf={-10:0}, whoop_cx_dev={-13:0}, whoop_file_0={-14:0}, whoop_file_1={-17:0}, whoop_file_2={-3:0}, whoop_file_3={-6:0}, whoop_file_4={-18:0}, whoop_inode_0={-4:0}, whoop_inode_1={-9:0}, whoop_inode_2={-8:0}, whoop_inode_3={-11:0}, whoop_inode_4={-12:0}, whoop_int=1, whoop_loff_t={-2:0}, whoop_pci_dev={-5:0}, whoop_platform_device={-16:0}, whoop_poll_table={-7:0}, whoop_vm_area_struct={-15:0}] [L175] 1 reach_error() VAL [\at(cond, Pre)=0, _whoop_exit={-1:5}, _whoop_init={-1:4}, cond=0, default_alloc_size=4, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=2, nvram_mutex={7:0}, whoop_buf={-10:0}, whoop_cx_dev={-13:0}, whoop_file_0={-14:0}, whoop_file_1={-17:0}, whoop_file_2={-3:0}, whoop_file_3={-6:0}, whoop_file_4={-18:0}, whoop_inode_0={-4:0}, whoop_inode_1={-9:0}, whoop_inode_2={-8:0}, whoop_inode_3={-11:0}, whoop_inode_4={-12:0}, whoop_int=1, whoop_loff_t={-2:0}, whoop_pci_dev={-5:0}, whoop_platform_device={-16:0}, whoop_poll_table={-7:0}, whoop_vm_area_struct={-15:0}] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 79 locations, 98 edges, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.2s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: whoop_wrapper_write_nvramThread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 79 locations, 98 edges, 6 error locations. Started 1 CEGAR loops. OverallTime: 50.4s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 27.2s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 220, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 20.5s InterpolantComputationTime, 372 NumberOfCodeBlocks, 370 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 412 ConstructedInterpolants, 0 QuantifiedInterpolants, 17133 SizeOfPredicates, 69 NumberOfNonLiveVariables, 1836 ConjunctsInSsa, 121 ConjunctsInUnsatCore, 16 InterpolantComputations, 7 PerfectInterpolantSequences, 14/29 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-03-20 01:07:49,642 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE