./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c5b0d1bb6abf00f856e27261b150a3be237701039761971659caf0639a1797fb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 07:25:15,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 07:25:15,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 07:25:15,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 07:25:15,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 07:25:15,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 07:25:15,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 07:25:15,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 07:25:15,365 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 07:25:15,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 07:25:15,369 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 07:25:15,370 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 07:25:15,370 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 07:25:15,372 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 07:25:15,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 07:25:15,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 07:25:15,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 07:25:15,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 07:25:15,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 07:25:15,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 07:25:15,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 07:25:15,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 07:25:15,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 07:25:15,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 07:25:15,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 07:25:15,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 07:25:15,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 07:25:15,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 07:25:15,392 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 07:25:15,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 07:25:15,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 07:25:15,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 07:25:15,394 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 07:25:15,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 07:25:15,397 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 07:25:15,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 07:25:15,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 07:25:15,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 07:25:15,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 07:25:15,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 07:25:15,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 07:25:15,400 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 07:25:15,427 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 07:25:15,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 07:25:15,428 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 07:25:15,428 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 07:25:15,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 07:25:15,428 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 07:25:15,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 07:25:15,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 07:25:15,429 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 07:25:15,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 07:25:15,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 07:25:15,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 07:25:15,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 07:25:15,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 07:25:15,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 07:25:15,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 07:25:15,430 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 07:25:15,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 07:25:15,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 07:25:15,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 07:25:15,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 07:25:15,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 07:25:15,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 07:25:15,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 07:25:15,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 07:25:15,432 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 07:25:15,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 07:25:15,432 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 07:25:15,432 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 07:25:15,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 07:25:15,432 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 07:25:15,433 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5b0d1bb6abf00f856e27261b150a3be237701039761971659caf0639a1797fb [2021-11-17 07:25:15,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 07:25:15,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 07:25:15,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 07:25:15,631 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 07:25:15,631 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 07:25:15,632 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i [2021-11-17 07:25:15,685 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f643c78c/1729e5721d7c499695601213242fbc43/FLAG1fb042236 [2021-11-17 07:25:16,263 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 07:25:16,264 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i [2021-11-17 07:25:16,307 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f643c78c/1729e5721d7c499695601213242fbc43/FLAG1fb042236 [2021-11-17 07:25:16,416 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f643c78c/1729e5721d7c499695601213242fbc43 [2021-11-17 07:25:16,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 07:25:16,420 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 07:25:16,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 07:25:16,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 07:25:16,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 07:25:16,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:25:16" (1/1) ... [2021-11-17 07:25:16,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37fe78bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:25:16, skipping insertion in model container [2021-11-17 07:25:16,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:25:16" (1/1) ... [2021-11-17 07:25:16,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 07:25:16,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 07:25:18,360 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[380944,380957] [2021-11-17 07:25:18,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381110,381123] [2021-11-17 07:25:18,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381274,381287] [2021-11-17 07:25:18,365 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381439,381452] [2021-11-17 07:25:18,391 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 07:25:18,451 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 07:25:18,721 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[380944,380957] [2021-11-17 07:25:18,722 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381110,381123] [2021-11-17 07:25:18,722 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381274,381287] [2021-11-17 07:25:18,722 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381439,381452] [2021-11-17 07:25:18,729 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 07:25:18,875 INFO L208 MainTranslator]: Completed translation [2021-11-17 07:25:18,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:25:18 WrapperNode [2021-11-17 07:25:18,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 07:25:18,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 07:25:18,876 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 07:25:18,877 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 07:25:18,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:25:18" (1/1) ... [2021-11-17 07:25:18,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:25:18" (1/1) ... [2021-11-17 07:25:19,155 INFO L137 Inliner]: procedures = 490, calls = 2655, calls flagged for inlining = 292, calls inlined = 259, statements flattened = 5830 [2021-11-17 07:25:19,155 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 07:25:19,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 07:25:19,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 07:25:19,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 07:25:19,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:25:18" (1/1) ... [2021-11-17 07:25:19,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:25:18" (1/1) ... [2021-11-17 07:25:19,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:25:18" (1/1) ... [2021-11-17 07:25:19,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:25:18" (1/1) ... [2021-11-17 07:25:19,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:25:18" (1/1) ... [2021-11-17 07:25:19,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:25:18" (1/1) ... [2021-11-17 07:25:19,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:25:18" (1/1) ... [2021-11-17 07:25:19,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 07:25:19,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 07:25:19,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 07:25:19,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 07:25:19,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:25:18" (1/1) ... [2021-11-17 07:25:19,437 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 07:25:19,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 07:25:19,458 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 07:25:19,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 07:25:19,492 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-17 07:25:19,492 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-17 07:25:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 07:25:19,493 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 07:25:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-17 07:25:19,493 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-17 07:25:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-17 07:25:19,493 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-17 07:25:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 07:25:19,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 07:25:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-17 07:25:19,494 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-17 07:25:19,494 INFO L130 BoogieDeclarations]: Found specification of procedure free_tbufs [2021-11-17 07:25:19,494 INFO L138 BoogieDeclarations]: Found implementation of procedure free_tbufs [2021-11-17 07:25:19,494 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-17 07:25:19,494 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-17 07:25:19,494 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-17 07:25:19,494 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-17 07:25:19,494 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-17 07:25:19,494 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-17 07:25:19,495 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-17 07:25:19,495 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-17 07:25:19,495 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-11-17 07:25:19,495 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-11-17 07:25:19,495 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_poll [2021-11-17 07:25:19,495 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_poll [2021-11-17 07:25:19,495 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-11-17 07:25:19,495 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-11-17 07:25:19,495 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-17 07:25:19,496 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-17 07:25:19,496 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit_low [2021-11-17 07:25:19,496 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit_low [2021-11-17 07:25:19,496 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-17 07:25:19,496 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-17 07:25:19,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 07:25:19,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 07:25:19,497 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-17 07:25:19,497 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-17 07:25:19,497 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-17 07:25:19,497 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-17 07:25:19,497 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 07:25:19,497 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 07:25:19,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 07:25:19,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 07:25:19,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-17 07:25:19,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-17 07:25:19,498 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-17 07:25:19,498 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-17 07:25:19,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 07:25:19,498 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-17 07:25:19,499 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-17 07:25:19,499 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit [2021-11-17 07:25:19,499 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit [2021-11-17 07:25:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 07:25:19,500 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 07:25:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-17 07:25:19,501 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-17 07:25:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-17 07:25:19,501 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-17 07:25:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_rbufs [2021-11-17 07:25:19,501 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_rbufs [2021-11-17 07:25:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 07:25:19,501 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 07:25:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 07:25:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 07:25:19,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 07:25:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_interrupt [2021-11-17 07:25:19,502 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_interrupt [2021-11-17 07:25:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 07:25:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 07:25:19,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 07:25:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-17 07:25:19,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-17 07:25:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-17 07:25:19,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-17 07:25:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_task_disable [2021-11-17 07:25:19,503 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_task_disable [2021-11-17 07:25:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-11-17 07:25:19,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-11-17 07:25:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-17 07:25:19,504 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-17 07:25:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-17 07:25:19,504 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-17 07:25:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_carrier [2021-11-17 07:25:19,504 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_carrier [2021-11-17 07:25:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_shutdown [2021-11-17 07:25:19,504 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_shutdown [2021-11-17 07:25:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 07:25:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-17 07:25:19,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-17 07:25:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-17 07:25:19,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-17 07:25:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-17 07:25:19,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-17 07:25:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-17 07:25:19,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-17 07:25:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 07:25:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2021-11-17 07:25:19,506 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2021-11-17 07:25:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 07:25:19,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 07:25:19,507 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 07:25:19,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 07:25:19,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 07:25:19,507 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-17 07:25:19,507 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-11-17 07:25:19,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-11-17 07:25:19,507 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 07:25:19,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 07:25:19,508 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-17 07:25:19,508 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-17 07:25:19,508 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_rx_mode [2021-11-17 07:25:19,509 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_rx_mode [2021-11-17 07:25:19,510 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 07:25:19,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 07:25:19,511 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_update_rx_crc_and_missed_errord [2021-11-17 07:25:19,511 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_update_rx_crc_and_missed_errord [2021-11-17 07:25:19,511 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-11-17 07:25:19,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-11-17 07:25:19,512 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-17 07:25:19,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-17 07:25:19,512 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-17 07:25:19,516 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-17 07:25:19,517 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 07:25:19,517 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 07:25:19,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-17 07:25:19,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-17 07:25:19,517 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2021-11-17 07:25:19,517 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2021-11-17 07:25:19,517 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-17 07:25:19,517 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-17 07:25:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_power_init [2021-11-17 07:25:19,518 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_power_init [2021-11-17 07:25:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_tx_timeout [2021-11-17 07:25:19,518 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_tx_timeout [2021-11-17 07:25:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-17 07:25:19,518 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-17 07:25:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 07:25:19,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 07:25:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-17 07:25:19,518 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-17 07:25:19,519 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-17 07:25:19,519 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-17 07:25:19,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 07:25:19,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 07:25:19,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 07:25:19,519 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-17 07:25:19,519 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_chip_reset [2021-11-17 07:25:19,519 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_chip_reset [2021-11-17 07:25:19,519 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-17 07:25:19,519 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-17 07:25:19,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 07:25:19,520 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 07:25:19,520 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_cam_mask [2021-11-17 07:25:19,520 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_cam_mask [2021-11-17 07:25:19,520 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2021-11-17 07:25:19,520 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2021-11-17 07:25:19,520 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 07:25:19,520 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 07:25:19,520 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_remove_one [2021-11-17 07:25:19,520 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_remove_one [2021-11-17 07:25:19,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-17 07:25:19,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-17 07:25:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-17 07:25:19,521 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-17 07:25:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_close [2021-11-17 07:25:19,521 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_close [2021-11-17 07:25:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_task_lock_of_rhine_private [2021-11-17 07:25:19,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_task_lock_of_rhine_private [2021-11-17 07:25:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-17 07:25:19,521 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-17 07:25:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 07:25:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-17 07:25:19,522 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-17 07:25:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-17 07:25:19,522 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-17 07:25:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 07:25:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_check_media [2021-11-17 07:25:19,522 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_check_media [2021-11-17 07:25:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rhine_cleanup_14_2 [2021-11-17 07:25:19,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rhine_cleanup_14_2 [2021-11-17 07:25:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 07:25:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure free_rbufs [2021-11-17 07:25:19,523 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rbufs [2021-11-17 07:25:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_get_events [2021-11-17 07:25:19,523 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_get_events [2021-11-17 07:25:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 07:25:19,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 07:25:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-17 07:25:19,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-17 07:25:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure enable_mmio [2021-11-17 07:25:19,524 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_mmio [2021-11-17 07:25:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_vlan_cam_mask [2021-11-17 07:25:19,524 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_vlan_cam_mask [2021-11-17 07:25:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-17 07:25:19,524 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-17 07:25:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 07:25:19,524 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 07:25:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-17 07:25:19,525 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-17 07:25:19,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 07:25:19,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 07:25:19,525 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-17 07:25:19,525 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-17 07:25:19,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-17 07:25:19,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-17 07:25:19,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-17 07:25:19,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-17 07:25:19,525 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-17 07:25:19,526 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-17 07:25:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 07:25:19,526 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 07:25:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_disable_linkmon [2021-11-17 07:25:19,526 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_disable_linkmon [2021-11-17 07:25:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_ack_events [2021-11-17 07:25:19,526 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_ack_events [2021-11-17 07:25:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 07:25:19,526 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 07:25:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_resume [2021-11-17 07:25:19,527 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_resume [2021-11-17 07:25:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-17 07:25:19,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-17 07:25:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 07:25:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-17 07:25:19,527 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-17 07:25:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 07:25:19,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 07:25:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2021-11-17 07:25:19,527 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2021-11-17 07:25:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-17 07:25:19,528 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-17 07:25:19,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_task_lock_of_rhine_private [2021-11-17 07:25:19,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_task_lock_of_rhine_private [2021-11-17 07:25:19,528 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit_high [2021-11-17 07:25:19,528 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit_high [2021-11-17 07:25:19,528 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_irq_disable [2021-11-17 07:25:19,528 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_irq_disable [2021-11-17 07:25:19,528 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_task_enable [2021-11-17 07:25:19,528 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_task_enable [2021-11-17 07:25:19,529 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_tbufs [2021-11-17 07:25:19,531 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_tbufs [2021-11-17 07:25:19,531 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-17 07:25:19,531 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-17 07:25:19,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 07:25:19,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 07:25:19,532 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-17 07:25:19,532 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-17 07:25:19,532 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-17 07:25:19,532 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-17 07:25:19,533 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_enable_linkmon [2021-11-17 07:25:19,533 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_enable_linkmon [2021-11-17 07:25:19,533 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_update_vcam [2021-11-17 07:25:19,533 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_update_vcam [2021-11-17 07:25:19,533 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-17 07:25:19,533 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-17 07:25:19,534 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-17 07:25:19,534 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-17 07:25:19,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 07:25:19,534 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_suspend [2021-11-17 07:25:19,534 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_suspend [2021-11-17 07:25:19,534 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_open [2021-11-17 07:25:19,534 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_open [2021-11-17 07:25:19,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-17 07:25:19,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-17 07:25:20,189 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 07:25:20,192 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 07:25:20,326 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 07:32:47,810 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-17 07:32:47,862 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 07:32:47,884 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 07:32:47,884 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-17 07:32:47,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 07:32:47 BoogieIcfgContainer [2021-11-17 07:32:47,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 07:32:47,891 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 07:32:47,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 07:32:47,894 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 07:32:47,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:25:16" (1/3) ... [2021-11-17 07:32:47,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71fccb9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:32:47, skipping insertion in model container [2021-11-17 07:32:47,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:25:18" (2/3) ... [2021-11-17 07:32:47,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71fccb9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:32:47, skipping insertion in model container [2021-11-17 07:32:47,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 07:32:47" (3/3) ... [2021-11-17 07:32:47,897 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i [2021-11-17 07:32:47,900 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 07:32:47,901 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-17 07:32:47,952 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 07:32:47,965 INFO L339 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 07:32:47,967 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-17 07:32:48,017 INFO L276 IsEmpty]: Start isEmpty. Operand has 2217 states, 1510 states have (on average 1.276158940397351) internal successors, (1927), 1559 states have internal predecessors, (1927), 582 states have call successors, (582), 124 states have call predecessors, (582), 123 states have return successors, (573), 560 states have call predecessors, (573), 573 states have call successors, (573) [2021-11-17 07:32:48,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-17 07:32:48,038 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:32:48,038 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:32:48,039 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:32:48,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:32:48,043 INFO L85 PathProgramCache]: Analyzing trace with hash -890164547, now seen corresponding path program 1 times [2021-11-17 07:32:48,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:32:48,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351002550] [2021-11-17 07:32:48,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:32:48,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:32:48,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:32:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:32:49,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:32:49,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:32:49,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:32:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:32:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:32:49,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:32:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:32:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:32:49,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:32:49,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:32:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:32:49,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:32:49,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:32:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:32:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:32:49,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:32:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:32:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:32:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:32:49,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:32:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 07:32:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:32:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 07:32:49,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:32:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 07:32:49,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:32:49,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 07:32:49,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-11-17 07:32:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:32:49,438 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-11-17 07:32:49,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:32:49,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351002550] [2021-11-17 07:32:49,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351002550] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:32:49,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:32:49,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:32:49,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372761949] [2021-11-17 07:32:49,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:32:49,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:32:49,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:32:49,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:32:49,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:32:49,479 INFO L87 Difference]: Start difference. First operand has 2217 states, 1510 states have (on average 1.276158940397351) internal successors, (1927), 1559 states have internal predecessors, (1927), 582 states have call successors, (582), 124 states have call predecessors, (582), 123 states have return successors, (573), 560 states have call predecessors, (573), 573 states have call successors, (573) Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-17 07:32:51,602 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:32:53,937 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:33:04,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:33:04,645 INFO L93 Difference]: Finished difference Result 6528 states and 9337 transitions. [2021-11-17 07:33:04,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:33:04,656 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 184 [2021-11-17 07:33:04,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:33:04,691 INFO L225 Difference]: With dead ends: 6528 [2021-11-17 07:33:04,692 INFO L226 Difference]: Without dead ends: 4331 [2021-11-17 07:33:04,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:33:04,709 INFO L933 BasicCegarLoop]: 3175 mSDtfsCounter, 3732 mSDsluCounter, 3350 mSDsCounter, 0 mSdLazyCounter, 1986 mSolverCounterSat, 1739 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4225 SdHoareTripleChecker+Valid, 6525 SdHoareTripleChecker+Invalid, 3727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1739 IncrementalHoareTripleChecker+Valid, 1986 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2021-11-17 07:33:04,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4225 Valid, 6525 Invalid, 3727 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1739 Valid, 1986 Invalid, 2 Unknown, 0 Unchecked, 14.5s Time] [2021-11-17 07:33:04,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4331 states. [2021-11-17 07:33:04,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4331 to 4227. [2021-11-17 07:33:04,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4227 states, 2878 states have (on average 1.2602501737317582) internal successors, (3627), 2973 states have internal predecessors, (3627), 1104 states have call successors, (1104), 243 states have call predecessors, (1104), 242 states have return successors, (1100), 1074 states have call predecessors, (1100), 1100 states have call successors, (1100) [2021-11-17 07:33:04,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4227 states to 4227 states and 5831 transitions. [2021-11-17 07:33:04,952 INFO L78 Accepts]: Start accepts. Automaton has 4227 states and 5831 transitions. Word has length 184 [2021-11-17 07:33:04,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:33:04,956 INFO L470 AbstractCegarLoop]: Abstraction has 4227 states and 5831 transitions. [2021-11-17 07:33:04,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-17 07:33:04,956 INFO L276 IsEmpty]: Start isEmpty. Operand 4227 states and 5831 transitions. [2021-11-17 07:33:04,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-17 07:33:04,962 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:33:04,963 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:33:04,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 07:33:04,963 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:33:04,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:33:04,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1173083363, now seen corresponding path program 1 times [2021-11-17 07:33:04,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:33:04,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705432036] [2021-11-17 07:33:04,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:33:04,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:33:05,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:33:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:33:05,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:33:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:33:05,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:33:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:33:05,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:05,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:33:05,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:33:05,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:33:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:05,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:33:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:33:05,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 07:33:05,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:05,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 07:33:05,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 07:33:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:05,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 07:33:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:05,794 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-11-17 07:33:05,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:33:05,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705432036] [2021-11-17 07:33:05,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705432036] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:33:05,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:33:05,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:33:05,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698829093] [2021-11-17 07:33:05,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:33:05,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:33:05,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:33:05,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:33:05,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:33:05,799 INFO L87 Difference]: Start difference. First operand 4227 states and 5831 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-17 07:33:07,900 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:33:10,223 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:33:22,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:33:22,506 INFO L93 Difference]: Finished difference Result 12279 states and 17031 transitions. [2021-11-17 07:33:22,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:33:22,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 186 [2021-11-17 07:33:22,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:33:22,559 INFO L225 Difference]: With dead ends: 12279 [2021-11-17 07:33:22,560 INFO L226 Difference]: Without dead ends: 8085 [2021-11-17 07:33:22,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:33:22,586 INFO L933 BasicCegarLoop]: 3202 mSDtfsCounter, 3300 mSDsluCounter, 3289 mSDsCounter, 0 mSdLazyCounter, 2024 mSolverCounterSat, 1615 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3769 SdHoareTripleChecker+Valid, 6491 SdHoareTripleChecker+Invalid, 3641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1615 IncrementalHoareTripleChecker+Valid, 2024 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2021-11-17 07:33:22,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3769 Valid, 6491 Invalid, 3641 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1615 Valid, 2024 Invalid, 2 Unknown, 0 Unchecked, 16.0s Time] [2021-11-17 07:33:22,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8085 states. [2021-11-17 07:33:22,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8085 to 7880. [2021-11-17 07:33:22,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7880 states, 5343 states have (on average 1.2543514879281303) internal successors, (6702), 5517 states have internal predecessors, (6702), 2059 states have call successors, (2059), 476 states have call predecessors, (2059), 475 states have return successors, (2055), 2004 states have call predecessors, (2055), 2055 states have call successors, (2055) [2021-11-17 07:33:22,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7880 states to 7880 states and 10816 transitions. [2021-11-17 07:33:22,911 INFO L78 Accepts]: Start accepts. Automaton has 7880 states and 10816 transitions. Word has length 186 [2021-11-17 07:33:22,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:33:22,912 INFO L470 AbstractCegarLoop]: Abstraction has 7880 states and 10816 transitions. [2021-11-17 07:33:22,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-17 07:33:22,912 INFO L276 IsEmpty]: Start isEmpty. Operand 7880 states and 10816 transitions. [2021-11-17 07:33:22,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-17 07:33:22,916 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:33:22,916 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:33:22,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 07:33:22,917 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:33:22,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:33:22,917 INFO L85 PathProgramCache]: Analyzing trace with hash -2097339821, now seen corresponding path program 1 times [2021-11-17 07:33:22,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:33:22,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39174061] [2021-11-17 07:33:22,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:33:22,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:33:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:33:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:23,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:33:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:33:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:23,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:33:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:33:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:33:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:33:23,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:23,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:33:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:33:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:23,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:33:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:33:23,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 07:33:23,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 07:33:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:23,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 07:33:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 07:33:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 07:33:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:23,753 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-11-17 07:33:23,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:33:23,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39174061] [2021-11-17 07:33:23,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39174061] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:33:23,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:33:23,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:33:23,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907657195] [2021-11-17 07:33:23,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:33:23,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:33:23,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:33:23,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:33:23,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:33:23,757 INFO L87 Difference]: Start difference. First operand 7880 states and 10816 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-17 07:33:25,854 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:33:28,198 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:33:38,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:33:38,898 INFO L93 Difference]: Finished difference Result 22436 states and 30942 transitions. [2021-11-17 07:33:38,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:33:38,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 188 [2021-11-17 07:33:38,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:33:38,979 INFO L225 Difference]: With dead ends: 22436 [2021-11-17 07:33:38,980 INFO L226 Difference]: Without dead ends: 14589 [2021-11-17 07:33:39,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:33:39,013 INFO L933 BasicCegarLoop]: 3095 mSDtfsCounter, 3274 mSDsluCounter, 3300 mSDsCounter, 0 mSdLazyCounter, 1945 mSolverCounterSat, 1636 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3707 SdHoareTripleChecker+Valid, 6395 SdHoareTripleChecker+Invalid, 3583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1636 IncrementalHoareTripleChecker+Valid, 1945 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2021-11-17 07:33:39,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3707 Valid, 6395 Invalid, 3583 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1636 Valid, 1945 Invalid, 2 Unknown, 0 Unchecked, 14.5s Time] [2021-11-17 07:33:39,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14589 states. [2021-11-17 07:33:39,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14589 to 14208. [2021-11-17 07:33:39,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14208 states, 9577 states have (on average 1.2536284849117678) internal successors, (12006), 9907 states have internal predecessors, (12006), 3723 states have call successors, (3723), 908 states have call predecessors, (3723), 905 states have return successors, (3723), 3608 states have call predecessors, (3723), 3719 states have call successors, (3723) [2021-11-17 07:33:39,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14208 states to 14208 states and 19452 transitions. [2021-11-17 07:33:39,501 INFO L78 Accepts]: Start accepts. Automaton has 14208 states and 19452 transitions. Word has length 188 [2021-11-17 07:33:39,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:33:39,502 INFO L470 AbstractCegarLoop]: Abstraction has 14208 states and 19452 transitions. [2021-11-17 07:33:39,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-17 07:33:39,503 INFO L276 IsEmpty]: Start isEmpty. Operand 14208 states and 19452 transitions. [2021-11-17 07:33:39,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-17 07:33:39,506 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:33:39,506 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:33:39,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 07:33:39,506 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:33:39,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:33:39,507 INFO L85 PathProgramCache]: Analyzing trace with hash -462196998, now seen corresponding path program 1 times [2021-11-17 07:33:39,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:33:39,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719923033] [2021-11-17 07:33:39,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:33:39,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:33:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:39,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:33:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:39,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:39,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:33:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:39,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:39,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:33:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:40,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:40,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:33:40,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:40,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:40,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:33:40,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:40,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:40,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:40,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:33:40,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:40,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:40,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:33:40,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:40,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:40,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:40,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:33:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:40,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:40,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:40,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:33:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:40,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:40,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:40,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:33:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:40,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:40,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:33:40,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:40,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:40,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:40,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 07:33:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:40,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:40,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:40,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 07:33:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:40,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:40,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 07:33:40,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:40,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:40,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:40,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 07:33:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:40,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 07:33:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:40,258 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-11-17 07:33:40,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:33:40,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719923033] [2021-11-17 07:33:40,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719923033] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:33:40,258 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:33:40,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:33:40,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685591126] [2021-11-17 07:33:40,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:33:40,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:33:40,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:33:40,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:33:40,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:33:40,260 INFO L87 Difference]: Start difference. First operand 14208 states and 19452 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-17 07:33:42,346 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:33:44,670 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:33:55,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:33:55,251 INFO L93 Difference]: Finished difference Result 30363 states and 41669 transitions. [2021-11-17 07:33:55,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:33:55,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 198 [2021-11-17 07:33:55,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:33:55,341 INFO L225 Difference]: With dead ends: 30363 [2021-11-17 07:33:55,341 INFO L226 Difference]: Without dead ends: 16188 [2021-11-17 07:33:55,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:33:55,391 INFO L933 BasicCegarLoop]: 3524 mSDtfsCounter, 3229 mSDsluCounter, 3513 mSDsCounter, 0 mSdLazyCounter, 1962 mSolverCounterSat, 1581 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3663 SdHoareTripleChecker+Valid, 7037 SdHoareTripleChecker+Invalid, 3545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1581 IncrementalHoareTripleChecker+Valid, 1962 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2021-11-17 07:33:55,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3663 Valid, 7037 Invalid, 3545 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1581 Valid, 1962 Invalid, 2 Unknown, 0 Unchecked, 14.3s Time] [2021-11-17 07:33:55,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16188 states. [2021-11-17 07:33:55,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16188 to 15717. [2021-11-17 07:33:55,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15717 states, 10566 states have (on average 1.2449365890592465) internal successors, (13154), 10935 states have internal predecessors, (13154), 4088 states have call successors, (4088), 1066 states have call predecessors, (4088), 1060 states have return successors, (4088), 3942 states have call predecessors, (4088), 4084 states have call successors, (4088) [2021-11-17 07:33:55,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15717 states to 15717 states and 21330 transitions. [2021-11-17 07:33:55,861 INFO L78 Accepts]: Start accepts. Automaton has 15717 states and 21330 transitions. Word has length 198 [2021-11-17 07:33:55,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:33:55,862 INFO L470 AbstractCegarLoop]: Abstraction has 15717 states and 21330 transitions. [2021-11-17 07:33:55,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-17 07:33:55,862 INFO L276 IsEmpty]: Start isEmpty. Operand 15717 states and 21330 transitions. [2021-11-17 07:33:55,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-17 07:33:55,865 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:33:55,865 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:33:55,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 07:33:55,865 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:33:55,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:33:55,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1275605142, now seen corresponding path program 1 times [2021-11-17 07:33:55,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:33:55,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037325060] [2021-11-17 07:33:55,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:33:55,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:33:56,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:33:56,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:56,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:33:56,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:56,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:33:56,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:56,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:33:56,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:33:56,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:56,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:33:56,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:56,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:33:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:33:56,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:56,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:33:56,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:33:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:33:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 07:33:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 07:33:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 07:33:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:33:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 07:33:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 07:33:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:33:56,680 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-11-17 07:33:56,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:33:56,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037325060] [2021-11-17 07:33:56,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037325060] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:33:56,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:33:56,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:33:56,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032100922] [2021-11-17 07:33:56,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:33:56,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:33:56,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:33:56,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:33:56,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:33:56,682 INFO L87 Difference]: Start difference. First operand 15717 states and 21330 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-17 07:33:58,777 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:34:01,130 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:34:12,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:34:12,861 INFO L93 Difference]: Finished difference Result 45285 states and 61842 transitions. [2021-11-17 07:34:12,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:34:12,861 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 198 [2021-11-17 07:34:12,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:34:13,025 INFO L225 Difference]: With dead ends: 45285 [2021-11-17 07:34:13,026 INFO L226 Difference]: Without dead ends: 29601 [2021-11-17 07:34:13,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:34:13,094 INFO L933 BasicCegarLoop]: 3166 mSDtfsCounter, 3752 mSDsluCounter, 3377 mSDsCounter, 0 mSdLazyCounter, 1973 mSolverCounterSat, 1761 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4252 SdHoareTripleChecker+Valid, 6543 SdHoareTripleChecker+Invalid, 3736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1761 IncrementalHoareTripleChecker+Valid, 1973 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2021-11-17 07:34:13,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4252 Valid, 6543 Invalid, 3736 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1761 Valid, 1973 Invalid, 2 Unknown, 0 Unchecked, 15.3s Time] [2021-11-17 07:34:13,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29601 states. [2021-11-17 07:34:13,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29601 to 28764. [2021-11-17 07:34:14,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28764 states, 19339 states have (on average 1.2437561404415947) internal successors, (24053), 20034 states have internal predecessors, (24053), 7486 states have call successors, (7486), 1947 states have call predecessors, (7486), 1936 states have return successors, (7490), 7199 states have call predecessors, (7490), 7482 states have call successors, (7490) [2021-11-17 07:34:14,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28764 states to 28764 states and 39029 transitions. [2021-11-17 07:34:14,153 INFO L78 Accepts]: Start accepts. Automaton has 28764 states and 39029 transitions. Word has length 198 [2021-11-17 07:34:14,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:34:14,154 INFO L470 AbstractCegarLoop]: Abstraction has 28764 states and 39029 transitions. [2021-11-17 07:34:14,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-17 07:34:14,155 INFO L276 IsEmpty]: Start isEmpty. Operand 28764 states and 39029 transitions. [2021-11-17 07:34:14,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-11-17 07:34:14,157 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:34:14,157 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:34:14,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 07:34:14,158 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:34:14,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:34:14,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1522260543, now seen corresponding path program 1 times [2021-11-17 07:34:14,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:34:14,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820822303] [2021-11-17 07:34:14,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:34:14,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:34:14,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:34:14,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:34:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:14,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:34:14,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:14,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:34:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:34:14,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:14,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:34:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:14,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:34:14,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:34:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:34:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:14,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:34:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:34:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:14,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 07:34:14,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 07:34:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 07:34:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 07:34:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 07:34:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 07:34:14,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:14,796 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2021-11-17 07:34:14,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:34:14,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820822303] [2021-11-17 07:34:14,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820822303] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:34:14,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:34:14,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:34:14,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249900251] [2021-11-17 07:34:14,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:34:14,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:34:14,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:34:14,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:34:14,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:34:14,799 INFO L87 Difference]: Start difference. First operand 28764 states and 39029 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-17 07:34:16,888 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:34:19,220 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:34:31,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:34:31,045 INFO L93 Difference]: Finished difference Result 80380 states and 109696 transitions. [2021-11-17 07:34:31,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:34:31,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 211 [2021-11-17 07:34:31,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:34:31,320 INFO L225 Difference]: With dead ends: 80380 [2021-11-17 07:34:31,320 INFO L226 Difference]: Without dead ends: 51649 [2021-11-17 07:34:31,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:34:31,441 INFO L933 BasicCegarLoop]: 3752 mSDtfsCounter, 3513 mSDsluCounter, 3626 mSDsCounter, 0 mSdLazyCounter, 2001 mSolverCounterSat, 1575 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4002 SdHoareTripleChecker+Valid, 7378 SdHoareTripleChecker+Invalid, 3578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1575 IncrementalHoareTripleChecker+Valid, 2001 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2021-11-17 07:34:31,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4002 Valid, 7378 Invalid, 3578 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1575 Valid, 2001 Invalid, 2 Unknown, 0 Unchecked, 14.9s Time] [2021-11-17 07:34:31,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51649 states. [2021-11-17 07:34:33,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51649 to 50260. [2021-11-17 07:34:33,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50260 states, 33946 states have (on average 1.2420020031815235) internal successors, (42161), 35199 states have internal predecessors, (42161), 12954 states have call successors, (12954), 3378 states have call predecessors, (12954), 3357 states have return successors, (12966), 12414 states have call predecessors, (12966), 12950 states have call successors, (12966) [2021-11-17 07:34:33,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50260 states to 50260 states and 68081 transitions. [2021-11-17 07:34:33,321 INFO L78 Accepts]: Start accepts. Automaton has 50260 states and 68081 transitions. Word has length 211 [2021-11-17 07:34:33,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:34:33,322 INFO L470 AbstractCegarLoop]: Abstraction has 50260 states and 68081 transitions. [2021-11-17 07:34:33,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-17 07:34:33,322 INFO L276 IsEmpty]: Start isEmpty. Operand 50260 states and 68081 transitions. [2021-11-17 07:34:33,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-11-17 07:34:33,326 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:34:33,326 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:34:33,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 07:34:33,327 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:34:33,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:34:33,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1899693548, now seen corresponding path program 1 times [2021-11-17 07:34:33,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:34:33,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850238106] [2021-11-17 07:34:33,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:34:33,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:34:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:34:33,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:34:33,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:34:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:33,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:34:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:34:33,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:33,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:34:33,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:34:33,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:33,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:34:33,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:33,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:34:33,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:33,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:34:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:33,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:34:33,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:33,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 07:34:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:33,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 07:34:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 07:34:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:33,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 07:34:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 07:34:33,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 07:34:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 07:34:33,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:33,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 07:34:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:34,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:34,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 07:34:34,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:34,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 07:34:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:34,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 07:34:34,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:34,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2021-11-17 07:34:34,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:34:34,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850238106] [2021-11-17 07:34:34,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850238106] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:34:34,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:34:34,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:34:34,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042952280] [2021-11-17 07:34:34,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:34:34,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:34:34,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:34:34,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:34:34,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:34:34,033 INFO L87 Difference]: Start difference. First operand 50260 states and 68081 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-17 07:34:36,135 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:34:38,458 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:34:51,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:34:51,862 INFO L93 Difference]: Finished difference Result 150891 states and 205654 transitions. [2021-11-17 07:34:51,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:34:51,862 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 245 [2021-11-17 07:34:51,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:34:52,464 INFO L225 Difference]: With dead ends: 150891 [2021-11-17 07:34:52,464 INFO L226 Difference]: Without dead ends: 100845 [2021-11-17 07:34:52,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:34:52,736 INFO L933 BasicCegarLoop]: 4228 mSDtfsCounter, 3405 mSDsluCounter, 3929 mSDsCounter, 0 mSdLazyCounter, 1981 mSolverCounterSat, 1469 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3892 SdHoareTripleChecker+Valid, 8157 SdHoareTripleChecker+Invalid, 3452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1469 IncrementalHoareTripleChecker+Valid, 1981 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2021-11-17 07:34:52,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3892 Valid, 8157 Invalid, 3452 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1469 Valid, 1981 Invalid, 2 Unknown, 0 Unchecked, 15.2s Time] [2021-11-17 07:34:52,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100845 states. [2021-11-17 07:34:55,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100845 to 98161. [2021-11-17 07:34:55,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98161 states, 66334 states have (on average 1.2405855217535502) internal successors, (82293), 68662 states have internal predecessors, (82293), 25233 states have call successors, (25233), 6616 states have call predecessors, (25233), 6591 states have return successors, (25261), 24346 states have call predecessors, (25261), 25229 states have call successors, (25261) [2021-11-17 07:34:56,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98161 states to 98161 states and 132787 transitions. [2021-11-17 07:34:56,461 INFO L78 Accepts]: Start accepts. Automaton has 98161 states and 132787 transitions. Word has length 245 [2021-11-17 07:34:56,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:34:56,461 INFO L470 AbstractCegarLoop]: Abstraction has 98161 states and 132787 transitions. [2021-11-17 07:34:56,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-17 07:34:56,462 INFO L276 IsEmpty]: Start isEmpty. Operand 98161 states and 132787 transitions. [2021-11-17 07:34:56,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-11-17 07:34:56,468 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:34:56,468 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:34:56,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 07:34:56,469 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:34:56,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:34:56,469 INFO L85 PathProgramCache]: Analyzing trace with hash 23534486, now seen corresponding path program 1 times [2021-11-17 07:34:56,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:34:56,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232278852] [2021-11-17 07:34:56,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:34:56,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:34:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:34:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:57,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:34:57,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:34:57,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:34:57,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:57,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:34:57,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:57,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:34:57,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:34:57,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:57,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:34:57,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:57,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:34:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:57,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:34:57,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:57,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:34:57,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:57,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 07:34:57,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:57,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 07:34:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:57,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 07:34:57,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:57,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 07:34:57,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 07:34:57,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 07:34:57,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 07:34:57,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 07:34:57,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:34:57,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 07:34:57,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 07:34:57,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 07:34:57,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:34:57,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1041 trivial. 0 not checked. [2021-11-17 07:34:57,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:34:57,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232278852] [2021-11-17 07:34:57,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232278852] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:34:57,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:34:57,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:34:57,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715702156] [2021-11-17 07:34:57,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:34:57,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:34:57,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:34:57,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:34:57,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:34:57,496 INFO L87 Difference]: Start difference. First operand 98161 states and 132787 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 07:34:59,602 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:35:11,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:35:11,874 INFO L93 Difference]: Finished difference Result 100847 states and 137606 transitions. [2021-11-17 07:35:11,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:35:11,876 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 245 [2021-11-17 07:35:11,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:35:12,454 INFO L225 Difference]: With dead ends: 100847 [2021-11-17 07:35:12,455 INFO L226 Difference]: Without dead ends: 100845 [2021-11-17 07:35:12,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:35:12,500 INFO L933 BasicCegarLoop]: 2795 mSDtfsCounter, 3040 mSDsluCounter, 5571 mSDsCounter, 0 mSdLazyCounter, 2238 mSolverCounterSat, 1183 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3350 SdHoareTripleChecker+Valid, 8366 SdHoareTripleChecker+Invalid, 3422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1183 IncrementalHoareTripleChecker+Valid, 2238 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2021-11-17 07:35:12,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3350 Valid, 8366 Invalid, 3422 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1183 Valid, 2238 Invalid, 1 Unknown, 0 Unchecked, 11.9s Time] [2021-11-17 07:35:12,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100845 states. [2021-11-17 07:35:15,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100845 to 98165. [2021-11-17 07:35:15,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98165 states, 66337 states have (on average 1.2405746416027255) internal successors, (82296), 68665 states have internal predecessors, (82296), 25233 states have call successors, (25233), 6617 states have call predecessors, (25233), 6592 states have return successors, (25261), 24346 states have call predecessors, (25261), 25229 states have call successors, (25261) [2021-11-17 07:35:15,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98165 states to 98165 states and 132790 transitions. [2021-11-17 07:35:15,701 INFO L78 Accepts]: Start accepts. Automaton has 98165 states and 132790 transitions. Word has length 245 [2021-11-17 07:35:15,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:35:15,702 INFO L470 AbstractCegarLoop]: Abstraction has 98165 states and 132790 transitions. [2021-11-17 07:35:15,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 07:35:15,702 INFO L276 IsEmpty]: Start isEmpty. Operand 98165 states and 132790 transitions. [2021-11-17 07:35:15,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-11-17 07:35:15,706 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:35:15,707 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:35:15,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 07:35:15,707 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:35:15,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:35:15,707 INFO L85 PathProgramCache]: Analyzing trace with hash -735385157, now seen corresponding path program 1 times [2021-11-17 07:35:15,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:35:15,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426942400] [2021-11-17 07:35:15,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:35:15,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:35:16,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:35:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:16,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:35:16,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:16,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:35:16,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:16,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:35:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:35:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:16,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:35:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:16,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:35:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:16,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:35:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:35:16,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:35:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:35:16,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 07:35:16,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:16,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 07:35:16,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:16,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 07:35:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 07:35:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 07:35:16,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 07:35:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 07:35:16,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 07:35:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:16,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 07:35:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 07:35:16,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 07:35:16,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-11-17 07:35:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:16,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1041 trivial. 0 not checked. [2021-11-17 07:35:16,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:35:16,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426942400] [2021-11-17 07:35:16,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426942400] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:35:16,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:35:16,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:35:16,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594609652] [2021-11-17 07:35:16,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:35:16,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:35:16,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:35:16,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:35:16,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:35:16,775 INFO L87 Difference]: Start difference. First operand 98165 states and 132790 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 07:35:18,945 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:35:31,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:35:31,318 INFO L93 Difference]: Finished difference Result 100851 states and 137609 transitions. [2021-11-17 07:35:31,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:35:31,318 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 250 [2021-11-17 07:35:31,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:35:31,728 INFO L225 Difference]: With dead ends: 100851 [2021-11-17 07:35:31,729 INFO L226 Difference]: Without dead ends: 100849 [2021-11-17 07:35:31,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:35:31,776 INFO L933 BasicCegarLoop]: 2797 mSDtfsCounter, 3032 mSDsluCounter, 5568 mSDsCounter, 0 mSdLazyCounter, 2238 mSolverCounterSat, 1182 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3343 SdHoareTripleChecker+Valid, 8365 SdHoareTripleChecker+Invalid, 3421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1182 IncrementalHoareTripleChecker+Valid, 2238 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2021-11-17 07:35:31,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3343 Valid, 8365 Invalid, 3421 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1182 Valid, 2238 Invalid, 1 Unknown, 0 Unchecked, 12.3s Time] [2021-11-17 07:35:31,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100849 states. [2021-11-17 07:35:34,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100849 to 98169. [2021-11-17 07:35:34,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98169 states, 66340 states have (on average 1.240563762435936) internal successors, (82299), 68668 states have internal predecessors, (82299), 25233 states have call successors, (25233), 6618 states have call predecessors, (25233), 6593 states have return successors, (25261), 24346 states have call predecessors, (25261), 25229 states have call successors, (25261) [2021-11-17 07:35:35,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98169 states to 98169 states and 132793 transitions. [2021-11-17 07:35:35,278 INFO L78 Accepts]: Start accepts. Automaton has 98169 states and 132793 transitions. Word has length 250 [2021-11-17 07:35:35,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:35:35,278 INFO L470 AbstractCegarLoop]: Abstraction has 98169 states and 132793 transitions. [2021-11-17 07:35:35,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 07:35:35,279 INFO L276 IsEmpty]: Start isEmpty. Operand 98169 states and 132793 transitions. [2021-11-17 07:35:35,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-11-17 07:35:35,283 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:35:35,283 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:35:35,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 07:35:35,283 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:35:35,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:35:35,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1755549336, now seen corresponding path program 1 times [2021-11-17 07:35:35,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:35:35,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697822697] [2021-11-17 07:35:35,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:35:35,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:35:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:35,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:35:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:35,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:35,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:35:35,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:35,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:35,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:35,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:35:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:35,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:35,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:35:35,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:35,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:35:36,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:36,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:35:36,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:35:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:36,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:35:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:35:36,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:36,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:35:36,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:35:36,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 07:35:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 07:35:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:36,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 07:35:36,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:36,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 07:35:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 07:35:36,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 07:35:36,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 07:35:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 07:35:36,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:35:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 07:35:36,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 07:35:36,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 07:35:36,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-17 07:35:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 07:35:36,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 07:35:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-11-17 07:35:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:35:36,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1058 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1049 trivial. 0 not checked. [2021-11-17 07:35:36,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:35:36,208 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697822697] [2021-11-17 07:35:36,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697822697] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:35:36,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:35:36,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 07:35:36,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413068243] [2021-11-17 07:35:36,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:35:36,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 07:35:36,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:35:36,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 07:35:36,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:35:36,210 INFO L87 Difference]: Start difference. First operand 98169 states and 132793 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-17 07:35:38,299 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:35:40,625 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:35:42,951 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:36:07,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:36:07,524 INFO L93 Difference]: Finished difference Result 248099 states and 337560 transitions. [2021-11-17 07:36:07,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 07:36:07,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 264 [2021-11-17 07:36:07,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:36:08,339 INFO L225 Difference]: With dead ends: 248099 [2021-11-17 07:36:08,340 INFO L226 Difference]: Without dead ends: 150144 [2021-11-17 07:36:08,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 07:36:08,591 INFO L933 BasicCegarLoop]: 5147 mSDtfsCounter, 3748 mSDsluCounter, 4898 mSDsCounter, 0 mSdLazyCounter, 3945 mSolverCounterSat, 2861 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4113 SdHoareTripleChecker+Valid, 10045 SdHoareTripleChecker+Invalid, 6809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2861 IncrementalHoareTripleChecker+Valid, 3945 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.2s IncrementalHoareTripleChecker+Time [2021-11-17 07:36:08,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4113 Valid, 10045 Invalid, 6809 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2861 Valid, 3945 Invalid, 3 Unknown, 0 Unchecked, 26.2s Time] [2021-11-17 07:36:08,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150144 states. [2021-11-17 07:36:13,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150144 to 146102. [2021-11-17 07:36:13,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146102 states, 98760 states have (on average 1.2400060753341433) internal successors, (122463), 102163 states have internal predecessors, (122463), 37512 states have call successors, (37512), 9856 states have call predecessors, (37512), 9827 states have return successors, (37556), 36278 states have call predecessors, (37556), 37508 states have call successors, (37556) [2021-11-17 07:36:14,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146102 states to 146102 states and 197531 transitions. [2021-11-17 07:36:14,399 INFO L78 Accepts]: Start accepts. Automaton has 146102 states and 197531 transitions. Word has length 264 [2021-11-17 07:36:14,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:36:14,669 INFO L470 AbstractCegarLoop]: Abstraction has 146102 states and 197531 transitions. [2021-11-17 07:36:14,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-17 07:36:14,669 INFO L276 IsEmpty]: Start isEmpty. Operand 146102 states and 197531 transitions. [2021-11-17 07:36:14,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-11-17 07:36:14,672 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:36:14,673 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:36:14,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 07:36:14,673 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:36:14,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:36:14,673 INFO L85 PathProgramCache]: Analyzing trace with hash 148390518, now seen corresponding path program 1 times [2021-11-17 07:36:14,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:36:14,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244558258] [2021-11-17 07:36:14,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:36:14,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:36:14,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:36:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:15,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:36:15,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:36:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:36:15,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:36:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:15,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:36:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:36:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:36:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:36:15,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:15,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:36:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:36:15,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 07:36:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 07:36:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 07:36:15,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 07:36:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 07:36:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 07:36:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 07:36:15,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 07:36:15,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:15,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 07:36:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 07:36:15,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 07:36:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-11-17 07:36:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 07:36:15,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:15,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1049 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1045 trivial. 0 not checked. [2021-11-17 07:36:15,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:36:15,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244558258] [2021-11-17 07:36:15,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244558258] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:36:15,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:36:15,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:36:15,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184969874] [2021-11-17 07:36:15,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:36:15,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:36:15,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:36:15,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:36:15,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:36:15,515 INFO L87 Difference]: Start difference. First operand 146102 states and 197531 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 07:36:17,606 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:36:31,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:36:31,872 INFO L93 Difference]: Finished difference Result 150128 states and 204750 transitions. [2021-11-17 07:36:31,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:36:31,873 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 255 [2021-11-17 07:36:31,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:36:32,706 INFO L225 Difference]: With dead ends: 150128 [2021-11-17 07:36:32,706 INFO L226 Difference]: Without dead ends: 150124 [2021-11-17 07:36:32,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:36:32,772 INFO L933 BasicCegarLoop]: 2785 mSDtfsCounter, 3042 mSDsluCounter, 5543 mSDsCounter, 0 mSdLazyCounter, 2238 mSolverCounterSat, 1183 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3354 SdHoareTripleChecker+Valid, 8328 SdHoareTripleChecker+Invalid, 3422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1183 IncrementalHoareTripleChecker+Valid, 2238 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2021-11-17 07:36:32,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3354 Valid, 8328 Invalid, 3422 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1183 Valid, 2238 Invalid, 1 Unknown, 0 Unchecked, 12.1s Time] [2021-11-17 07:36:32,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150124 states. [2021-11-17 07:36:38,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150124 to 146104. [2021-11-17 07:36:38,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146104 states, 98762 states have (on average 1.2399910896903668) internal successors, (122464), 102164 states have internal predecessors, (122464), 37512 states have call successors, (37512), 9857 states have call predecessors, (37512), 9827 states have return successors, (37556), 36278 states have call predecessors, (37556), 37508 states have call successors, (37556) [2021-11-17 07:36:39,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146104 states to 146104 states and 197532 transitions. [2021-11-17 07:36:39,042 INFO L78 Accepts]: Start accepts. Automaton has 146104 states and 197532 transitions. Word has length 255 [2021-11-17 07:36:39,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:36:39,043 INFO L470 AbstractCegarLoop]: Abstraction has 146104 states and 197532 transitions. [2021-11-17 07:36:39,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 07:36:39,043 INFO L276 IsEmpty]: Start isEmpty. Operand 146104 states and 197532 transitions. [2021-11-17 07:36:39,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-11-17 07:36:39,047 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:36:39,047 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:36:39,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 07:36:39,047 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:36:39,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:36:39,048 INFO L85 PathProgramCache]: Analyzing trace with hash 569982555, now seen corresponding path program 1 times [2021-11-17 07:36:39,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:36:39,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199587617] [2021-11-17 07:36:39,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:36:39,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:36:39,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:36:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:36:39,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:39,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:36:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:39,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:36:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:36:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:36:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:39,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:36:39,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:36:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:39,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:36:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:36:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:39,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:36:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 07:36:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:39,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 07:36:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 07:36:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 07:36:39,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 07:36:39,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 07:36:39,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 07:36:39,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 07:36:39,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:36:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 07:36:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 07:36:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 07:36:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-11-17 07:36:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 07:36:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 07:36:39,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:36:39,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1053 trivial. 0 not checked. [2021-11-17 07:36:39,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:36:39,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199587617] [2021-11-17 07:36:39,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199587617] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:36:39,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:36:39,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:36:39,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393420102] [2021-11-17 07:36:39,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:36:39,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:36:39,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:36:39,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:36:39,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:36:39,804 INFO L87 Difference]: Start difference. First operand 146104 states and 197532 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-17 07:36:41,899 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:36:59,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:36:59,730 INFO L93 Difference]: Finished difference Result 172738 states and 233051 transitions. [2021-11-17 07:36:59,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 07:36:59,731 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 260 [2021-11-17 07:36:59,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:37:00,706 INFO L225 Difference]: With dead ends: 172738 [2021-11-17 07:37:00,707 INFO L226 Difference]: Without dead ends: 171860 [2021-11-17 07:37:00,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:37:00,790 INFO L933 BasicCegarLoop]: 2886 mSDtfsCounter, 3137 mSDsluCounter, 6079 mSDsCounter, 0 mSdLazyCounter, 2844 mSolverCounterSat, 1232 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3492 SdHoareTripleChecker+Valid, 8965 SdHoareTripleChecker+Invalid, 4077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1232 IncrementalHoareTripleChecker+Valid, 2844 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2021-11-17 07:37:00,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3492 Valid, 8965 Invalid, 4077 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1232 Valid, 2844 Invalid, 1 Unknown, 0 Unchecked, 14.5s Time] [2021-11-17 07:37:00,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171860 states.