./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-wireless-prism54-prism54.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 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-wireless-prism54-prism54.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 2bf48d35d7133b2e8327bc0634357c212875c286543fcf18078150bbf7eff020 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 15:28:04,370 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:28:04,372 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:28:04,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:28:04,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:28:04,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:28:04,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:28:04,410 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:28:04,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:28:04,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:28:04,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:28:04,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:28:04,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:28:04,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:28:04,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:28:04,417 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:28:04,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:28:04,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:28:04,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:28:04,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:28:04,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:28:04,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:28:04,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:28:04,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:28:04,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:28:04,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:28:04,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:28:04,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:28:04,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:28:04,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:28:04,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:28:04,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:28:04,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:28:04,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:28:04,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:28:04,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:28:04,445 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:28:04,445 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:28:04,445 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:28:04,446 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:28:04,447 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:28:04,448 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:28:04,480 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:28:04,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:28:04,485 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:28:04,485 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:28:04,486 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:28:04,486 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:28:04,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:28:04,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:28:04,487 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:28:04,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:28:04,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:28:04,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:28:04,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:28:04,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:28:04,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:28:04,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:28:04,489 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:28:04,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:28:04,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:28:04,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:28:04,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:28:04,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:28:04,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:28:04,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:28:04,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:28:04,491 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:28:04,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:28:04,491 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:28:04,491 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:28:04,491 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:28:04,492 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:28:04,492 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2bf48d35d7133b2e8327bc0634357c212875c286543fcf18078150bbf7eff020 [2021-12-22 15:28:04,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:28:04,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:28:04,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:28:04,738 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:28:04,738 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:28:04,740 INFO L432 ainManager$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-wireless-prism54-prism54.cil.i [2021-12-22 15:28:04,814 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e23169d55/ebe4490d73e84deb9de4ea336774d8fc/FLAGaa8a496dc [2021-12-22 15:28:05,611 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:28:05,612 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-wireless-prism54-prism54.cil.i [2021-12-22 15:28:05,673 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e23169d55/ebe4490d73e84deb9de4ea336774d8fc/FLAGaa8a496dc [2021-12-22 15:28:06,072 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e23169d55/ebe4490d73e84deb9de4ea336774d8fc [2021-12-22 15:28:06,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:28:06,076 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:28:06,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:28:06,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:28:06,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:28:06,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:28:06" (1/1) ... [2021-12-22 15:28:06,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56cb5abe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:28:06, skipping insertion in model container [2021-12-22 15:28:06,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:28:06" (1/1) ... [2021-12-22 15:28:06,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:28:06,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:28:10,424 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-wireless-prism54-prism54.cil.i[469707,469720] [2021-12-22 15:28:10,428 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-wireless-prism54-prism54.cil.i[469873,469886] [2021-12-22 15:28:10,433 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-wireless-prism54-prism54.cil.i[470037,470050] [2021-12-22 15:28:10,434 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-wireless-prism54-prism54.cil.i[470202,470215] [2021-12-22 15:28:10,459 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:28:10,579 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:28:11,043 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-wireless-prism54-prism54.cil.i[469707,469720] [2021-12-22 15:28:11,044 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-wireless-prism54-prism54.cil.i[469873,469886] [2021-12-22 15:28:11,044 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-wireless-prism54-prism54.cil.i[470037,470050] [2021-12-22 15:28:11,044 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-wireless-prism54-prism54.cil.i[470202,470215] [2021-12-22 15:28:11,052 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:28:11,398 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:28:11,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:28:11 WrapperNode [2021-12-22 15:28:11,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:28:11,400 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:28:11,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:28:11,401 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:28:11,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:28:11" (1/1) ... [2021-12-22 15:28:11,559 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:28:11" (1/1) ... [2021-12-22 15:28:11,881 INFO L137 Inliner]: procedures = 538, calls = 6232, calls flagged for inlining = 274, calls inlined = 248, statements flattened = 8897 [2021-12-22 15:28:11,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:28:11,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:28:11,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:28:11,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:28:11,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:28:11" (1/1) ... [2021-12-22 15:28:11,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:28:11" (1/1) ... [2021-12-22 15:28:11,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:28:11" (1/1) ... [2021-12-22 15:28:11,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:28:11" (1/1) ... [2021-12-22 15:28:12,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:28:11" (1/1) ... [2021-12-22 15:28:12,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:28:11" (1/1) ... [2021-12-22 15:28:12,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:28:11" (1/1) ... [2021-12-22 15:28:12,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:28:12,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:28:12,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:28:12,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:28:12,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:28:11" (1/1) ... [2021-12-22 15:28:12,223 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:28:12,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:28:12,243 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) [2021-12-22 15:28:12,264 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 [2021-12-22 15:28:12,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_or_killable_lock_of_islpci_acl [2021-12-22 15:28:12,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_or_killable_lock_of_islpci_acl [2021-12-22 15:28:12,379 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2021-12-22 15:28:12,379 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2021-12-22 15:28:12,379 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_eth_tx_timeout [2021-12-22 15:28:12,380 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_eth_tx_timeout [2021-12-22 15:28:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-22 15:28:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-22 15:28:12,380 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-22 15:28:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 15:28:12,380 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 15:28:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_trigger [2021-12-22 15:28:12,381 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_trigger [2021-12-22 15:28:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-22 15:28:12,381 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-22 15:28:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 15:28:12,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 15:28:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_mib_mode_helper [2021-12-22 15:28:12,381 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_mib_mode_helper [2021-12-22 15:28:12,382 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-22 15:28:12,382 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-22 15:28:12,382 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-22 15:28:12,382 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-22 15:28:12,382 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 15:28:12,382 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 15:28:12,382 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_request [2021-12-22 15:28:12,382 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_request [2021-12-22 15:28:12,383 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2021-12-22 15:28:12,383 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2021-12-22 15:28:12,383 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-22 15:28:12,383 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_get_state [2021-12-22 15:28:12,383 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_get_state [2021-12-22 15:28:12,383 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-22 15:28:12,384 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-22 15:28:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-22 15:28:12,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-22 15:28:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-22 15:28:12,384 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-22 15:28:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-22 15:28:12,384 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-22 15:28:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_release [2021-12-22 15:28:12,385 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_release [2021-12-22 15:28:12,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-22 15:28:12,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-22 15:28:12,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-12-22 15:28:12,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-12-22 15:28:12,385 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 15:28:12,386 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 15:28:12,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_try [2021-12-22 15:28:12,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_try [2021-12-22 15:28:12,386 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-22 15:28:12,386 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-22 15:28:12,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:28:12,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_wpa_lock_of_NOT_ARG_SIGN [2021-12-22 15:28:12,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_wpa_lock_of_NOT_ARG_SIGN [2021-12-22 15:28:12,387 INFO L130 BoogieDeclarations]: Found specification of procedure send_simple_event [2021-12-22 15:28:12,387 INFO L138 BoogieDeclarations]: Found implementation of procedure send_simple_event [2021-12-22 15:28:12,387 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-22 15:28:12,387 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-22 15:28:12,387 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-22 15:28:12,387 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-22 15:28:12,388 INFO L130 BoogieDeclarations]: Found specification of procedure send_formatted_event [2021-12-22 15:28:12,388 INFO L138 BoogieDeclarations]: Found implementation of procedure send_formatted_event [2021-12-22 15:28:12,388 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set [2021-12-22 15:28:12,388 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set [2021-12-22 15:28:12,388 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-22 15:28:12,388 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-22 15:28:12,388 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-22 15:28:12,389 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-22 15:28:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 15:28:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_reset [2021-12-22 15:28:12,389 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_reset [2021-12-22 15:28:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 15:28:12,389 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 15:28:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-12-22 15:28:12,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-12-22 15:28:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2021-12-22 15:28:12,390 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2021-12-22 15:28:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 15:28:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-22 15:28:12,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-22 15:28:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:28:12,391 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-22 15:28:12,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-22 15:28:12,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 15:28:12,391 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 15:28:12,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-22 15:28:12,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-22 15:28:12,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-22 15:28:12,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-22 15:28:12,392 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_open [2021-12-22 15:28:12,392 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_open [2021-12-22 15:28:12,392 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_resume [2021-12-22 15:28:12,392 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_resume [2021-12-22 15:28:12,392 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-22 15:28:12,392 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-22 15:28:12,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 15:28:12,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-22 15:28:12,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-22 15:28:12,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-22 15:28:12,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-22 15:28:12,393 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2021-12-22 15:28:12,393 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2021-12-22 15:28:12,393 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-22 15:28:12,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-22 15:28:12,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:28:12,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-22 15:28:12,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-22 15:28:12,394 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-22 15:28:12,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-22 15:28:12,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:28:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-22 15:28:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:28:12,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:28:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_stats_lock_of_NOT_ARG_SIGN [2021-12-22 15:28:12,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_stats_lock_of_NOT_ARG_SIGN [2021-12-22 15:28:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-22 15:28:12,396 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-22 15:28:12,396 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-22 15:28:12,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-22 15:28:12,396 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 15:28:12,397 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 15:28:12,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_wpa_lock_of_NOT_ARG_SIGN [2021-12-22 15:28:12,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_wpa_lock_of_NOT_ARG_SIGN [2021-12-22 15:28:12,403 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-22 15:28:12,403 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-22 15:28:12,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-22 15:28:12,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-22 15:28:12,403 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2021-12-22 15:28:12,403 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2021-12-22 15:28:12,403 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-22 15:28:12,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-22 15:28:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-22 15:28:12,404 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-22 15:28:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_prism54_module_exit_12_2 [2021-12-22 15:28:12,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_prism54_module_exit_12_2 [2021-12-22 15:28:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2021-12-22 15:28:12,404 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2021-12-22 15:28:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-22 15:28:12,404 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-22 15:28:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:28:12,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:28:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2021-12-22 15:28:12,405 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2021-12-22 15:28:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-22 15:28:12,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-22 15:28:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-22 15:28:12,405 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-22 15:28:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_clear_mac [2021-12-22 15:28:12,406 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_clear_mac [2021-12-22 15:28:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_wpa_bss_ie_get [2021-12-22 15:28:12,406 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_wpa_bss_ie_get [2021-12-22 15:28:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 15:28:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 15:28:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 15:28:12,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 15:28:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-22 15:28:12,407 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-22 15:28:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure handle_request [2021-12-22 15:28:12,407 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_request [2021-12-22 15:28:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_bring_down [2021-12-22 15:28:12,407 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_bring_down [2021-12-22 15:28:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2021-12-22 15:28:12,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2021-12-22 15:28:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-22 15:28:12,408 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-22 15:28:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 15:28:12,408 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 15:28:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-22 15:28:12,408 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-22 15:28:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-22 15:28:12,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-22 15:28:12,409 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-22 15:28:12,409 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-22 15:28:12,409 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-22 15:28:12,409 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-22 15:28:12,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:28:12,409 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-22 15:28:12,409 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-22 15:28:12,410 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_set_state [2021-12-22 15:28:12,410 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_set_state [2021-12-22 15:28:12,410 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2021-12-22 15:28:12,410 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2021-12-22 15:28:12,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:28:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_varlen [2021-12-22 15:28:12,411 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_varlen [2021-12-22 15:28:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2021-12-22 15:28:12,411 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2021-12-22 15:28:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2021-12-22 15:28:12,412 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2021-12-22 15:28:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:28:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_close [2021-12-22 15:28:12,412 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_close [2021-12-22 15:28:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-12-22 15:28:12,412 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-12-22 15:28:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_get_request [2021-12-22 15:28:12,413 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_get_request [2021-12-22 15:28:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-22 15:28:12,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-22 15:28:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-22 15:28:12,413 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-22 15:28:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-22 15:28:12,413 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-22 15:28:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-22 15:28:12,414 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-22 15:28:12,414 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_remove [2021-12-22 15:28:12,414 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_remove [2021-12-22 15:28:12,414 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_w32_flush [2021-12-22 15:28:12,414 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_w32_flush [2021-12-22 15:28:12,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-22 15:28:12,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-22 15:28:12,414 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-22 15:28:12,415 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-22 15:28:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-12-22 15:28:12,415 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-12-22 15:28:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-22 15:28:12,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-22 15:28:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-22 15:28:12,415 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-22 15:28:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit_list [2021-12-22 15:28:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit_list [2021-12-22 15:28:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-22 15:28:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-22 15:28:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-12-22 15:28:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-12-22 15:28:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-22 15:28:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-22 15:28:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-22 15:28:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-22 15:28:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgmt_rx_fill [2021-12-22 15:28:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgmt_rx_fill [2021-12-22 15:28:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_transaction [2021-12-22 15:28:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_transaction [2021-12-22 15:28:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 15:28:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 15:28:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-12-22 15:28:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-12-22 15:28:12,418 INFO L130 BoogieDeclarations]: Found specification of procedure channel_of_freq [2021-12-22 15:28:12,418 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_of_freq [2021-12-22 15:28:12,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:28:12,418 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-12-22 15:28:12,420 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-12-22 15:28:12,420 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-12-22 15:28:12,420 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-12-22 15:28:12,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:28:12,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:28:12,422 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_free_memory [2021-12-22 15:28:12,422 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_free_memory [2021-12-22 15:28:12,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_islpci_acl [2021-12-22 15:28:12,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_islpci_acl [2021-12-22 15:28:12,423 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit [2021-12-22 15:28:12,423 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit [2021-12-22 15:28:12,423 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-22 15:28:12,424 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-22 15:28:12,424 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32s [2021-12-22 15:28:12,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32s [2021-12-22 15:28:12,424 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-12-22 15:28:12,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-12-22 15:28:12,424 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-22 15:28:12,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-22 15:28:12,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-22 15:28:12,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-22 15:28:12,425 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-22 15:28:12,425 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-22 15:28:12,425 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-12-22 15:28:12,425 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-12-22 15:28:12,425 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_in_queue [2021-12-22 15:28:12,425 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_in_queue [2021-12-22 15:28:12,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_islpci_acl [2021-12-22 15:28:12,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_islpci_acl [2021-12-22 15:28:12,425 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-22 15:28:12,426 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-22 15:28:12,426 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-22 15:28:12,426 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-22 15:28:12,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:28:12,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-22 15:28:12,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-22 15:28:12,426 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-22 15:28:12,426 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-22 15:28:12,427 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_disable_interrupts [2021-12-22 15:28:12,427 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_disable_interrupts [2021-12-22 15:28:13,331 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:28:13,337 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:28:13,876 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 15:28:20,008 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-22 15:28:20,261 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:28:20,278 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:28:20,279 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-12-22 15:28:20,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:28:20 BoogieIcfgContainer [2021-12-22 15:28:20,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:28:20,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:28:20,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:28:20,290 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:28:20,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:28:06" (1/3) ... [2021-12-22 15:28:20,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb91e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:28:20, skipping insertion in model container [2021-12-22 15:28:20,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:28:11" (2/3) ... [2021-12-22 15:28:20,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb91e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:28:20, skipping insertion in model container [2021-12-22 15:28:20,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:28:20" (3/3) ... [2021-12-22 15:28:20,293 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i [2021-12-22 15:28:20,299 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:28:20,299 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-22 15:28:20,358 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:28:20,364 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 [2021-12-22 15:28:20,364 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-22 15:28:20,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 2440 states, 1688 states have (on average 1.2938388625592416) internal successors, (2184), 1738 states have internal predecessors, (2184), 618 states have call successors, (618), 131 states have call predecessors, (618), 130 states have return successors, (612), 593 states have call predecessors, (612), 612 states have call successors, (612) [2021-12-22 15:28:20,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-22 15:28:20,484 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:28:20,484 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:28:20,485 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 2 more)] === [2021-12-22 15:28:20,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:28:20,491 INFO L85 PathProgramCache]: Analyzing trace with hash 38973541, now seen corresponding path program 1 times [2021-12-22 15:28:20,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:28:20,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551111723] [2021-12-22 15:28:20,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:28:20,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:28:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:21,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:28:21,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:21,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:21,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:28:21,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:21,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:21,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:28:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:21,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:21,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:28:21,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:21,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:21,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:28:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:21,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:21,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:21,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:28:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:21,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:21,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:21,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 15:28:21,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:21,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-22 15:28:21,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:21,655 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-12-22 15:28:21,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:28:21,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551111723] [2021-12-22 15:28:21,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551111723] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:28:21,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:28:21,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:28:21,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120036130] [2021-12-22 15:28:21,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:28:21,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:28:21,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:28:21,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:28:21,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:28:21,704 INFO L87 Difference]: Start difference. First operand has 2440 states, 1688 states have (on average 1.2938388625592416) internal successors, (2184), 1738 states have internal predecessors, (2184), 618 states have call successors, (618), 131 states have call predecessors, (618), 130 states have return successors, (612), 593 states have call predecessors, (612), 612 states have call successors, (612) Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-22 15:28:26,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:28:26,784 INFO L93 Difference]: Finished difference Result 7349 states and 10685 transitions. [2021-12-22 15:28:26,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:28:26,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 94 [2021-12-22 15:28:26,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:28:26,839 INFO L225 Difference]: With dead ends: 7349 [2021-12-22 15:28:26,839 INFO L226 Difference]: Without dead ends: 4910 [2021-12-22 15:28:26,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:28:26,867 INFO L933 BasicCegarLoop]: 3716 mSDtfsCounter, 4207 mSDsluCounter, 3984 mSDsCounter, 0 mSdLazyCounter, 2082 mSolverCounterSat, 1657 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4708 SdHoareTripleChecker+Valid, 7700 SdHoareTripleChecker+Invalid, 3739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1657 IncrementalHoareTripleChecker+Valid, 2082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-12-22 15:28:26,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4708 Valid, 7700 Invalid, 3739 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1657 Valid, 2082 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-12-22 15:28:26,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4910 states. [2021-12-22 15:28:27,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4910 to 4720. [2021-12-22 15:28:27,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4720 states, 3269 states have (on average 1.2633832976445396) internal successors, (4130), 3367 states have internal predecessors, (4130), 1191 states have call successors, (1191), 257 states have call predecessors, (1191), 256 states have return successors, (1187), 1149 states have call predecessors, (1187), 1187 states have call successors, (1187) [2021-12-22 15:28:27,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4720 states to 4720 states and 6508 transitions. [2021-12-22 15:28:27,160 INFO L78 Accepts]: Start accepts. Automaton has 4720 states and 6508 transitions. Word has length 94 [2021-12-22 15:28:27,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:28:27,161 INFO L470 AbstractCegarLoop]: Abstraction has 4720 states and 6508 transitions. [2021-12-22 15:28:27,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-22 15:28:27,161 INFO L276 IsEmpty]: Start isEmpty. Operand 4720 states and 6508 transitions. [2021-12-22 15:28:27,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-22 15:28:27,166 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:28:27,166 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:28:27,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 15:28:27,167 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_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 2 more)] === [2021-12-22 15:28:27,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:28:27,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1061101067, now seen corresponding path program 1 times [2021-12-22 15:28:27,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:28:27,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650365242] [2021-12-22 15:28:27,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:28:27,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:28:27,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:27,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:28:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:27,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:27,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:28:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:27,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:27,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:27,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:28:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:27,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:27,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:28:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:27,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:27,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:28:27,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:27,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:27,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:27,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:28:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:27,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:27,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 15:28:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:27,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-22 15:28:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:27,798 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-12-22 15:28:27,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:28:27,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650365242] [2021-12-22 15:28:27,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650365242] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:28:27,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:28:27,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:28:27,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613069549] [2021-12-22 15:28:27,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:28:27,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:28:27,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:28:27,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:28:27,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:28:27,803 INFO L87 Difference]: Start difference. First operand 4720 states and 6508 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-22 15:28:33,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:28:33,137 INFO L93 Difference]: Finished difference Result 12034 states and 16690 transitions. [2021-12-22 15:28:33,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:28:33,137 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 95 [2021-12-22 15:28:33,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:28:33,195 INFO L225 Difference]: With dead ends: 12034 [2021-12-22 15:28:33,195 INFO L226 Difference]: Without dead ends: 7331 [2021-12-22 15:28:33,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:28:33,227 INFO L933 BasicCegarLoop]: 3689 mSDtfsCounter, 4189 mSDsluCounter, 4047 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 1690 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4693 SdHoareTripleChecker+Valid, 7736 SdHoareTripleChecker+Invalid, 3765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1690 IncrementalHoareTripleChecker+Valid, 2075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-12-22 15:28:33,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4693 Valid, 7736 Invalid, 3765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1690 Valid, 2075 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2021-12-22 15:28:33,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7331 states. [2021-12-22 15:28:33,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7331 to 7033. [2021-12-22 15:28:33,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7033 states, 4872 states have (on average 1.2610837438423645) internal successors, (6144), 5021 states have internal predecessors, (6144), 1772 states have call successors, (1772), 386 states have call predecessors, (1772), 385 states have return successors, (1768), 1706 states have call predecessors, (1768), 1768 states have call successors, (1768) [2021-12-22 15:28:33,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7033 states to 7033 states and 9684 transitions. [2021-12-22 15:28:33,523 INFO L78 Accepts]: Start accepts. Automaton has 7033 states and 9684 transitions. Word has length 95 [2021-12-22 15:28:33,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:28:33,524 INFO L470 AbstractCegarLoop]: Abstraction has 7033 states and 9684 transitions. [2021-12-22 15:28:33,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-22 15:28:33,524 INFO L276 IsEmpty]: Start isEmpty. Operand 7033 states and 9684 transitions. [2021-12-22 15:28:33,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-22 15:28:33,527 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:28:33,528 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:28:33,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 15:28:33,528 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 2 more)] === [2021-12-22 15:28:33,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:28:33,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1782373060, now seen corresponding path program 1 times [2021-12-22 15:28:33,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:28:33,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907521448] [2021-12-22 15:28:33,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:28:33,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:28:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:33,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:28:34,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:34,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:34,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:28:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:34,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:34,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:34,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:28:34,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:34,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:34,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:34,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:28:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:34,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:34,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:34,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:28:34,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:34,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:34,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:34,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:28:34,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:34,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:34,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:34,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 15:28:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:34,320 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-12-22 15:28:34,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:28:34,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907521448] [2021-12-22 15:28:34,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907521448] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:28:34,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:28:34,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 15:28:34,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940557300] [2021-12-22 15:28:34,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:28:34,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 15:28:34,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:28:34,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 15:28:34,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-22 15:28:34,327 INFO L87 Difference]: Start difference. First operand 7033 states and 9684 transitions. Second operand has 7 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-22 15:28:44,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:28:44,314 INFO L93 Difference]: Finished difference Result 21840 states and 30170 transitions. [2021-12-22 15:28:44,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-22 15:28:44,315 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 97 [2021-12-22 15:28:44,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:28:44,406 INFO L225 Difference]: With dead ends: 21840 [2021-12-22 15:28:44,406 INFO L226 Difference]: Without dead ends: 14824 [2021-12-22 15:28:44,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:28:44,451 INFO L933 BasicCegarLoop]: 4042 mSDtfsCounter, 16520 mSDsluCounter, 5773 mSDsCounter, 0 mSdLazyCounter, 5487 mSolverCounterSat, 7980 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17441 SdHoareTripleChecker+Valid, 9815 SdHoareTripleChecker+Invalid, 13467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7980 IncrementalHoareTripleChecker+Valid, 5487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2021-12-22 15:28:44,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17441 Valid, 9815 Invalid, 13467 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7980 Valid, 5487 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2021-12-22 15:28:44,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14824 states. [2021-12-22 15:28:44,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14824 to 14138. [2021-12-22 15:28:45,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14138 states, 9850 states have (on average 1.2633502538071066) internal successors, (12444), 10178 states have internal predecessors, (12444), 3450 states have call successors, (3450), 839 states have call predecessors, (3450), 834 states have return successors, (3446), 3294 states have call predecessors, (3446), 3446 states have call successors, (3446) [2021-12-22 15:28:45,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14138 states to 14138 states and 19340 transitions. [2021-12-22 15:28:45,095 INFO L78 Accepts]: Start accepts. Automaton has 14138 states and 19340 transitions. Word has length 97 [2021-12-22 15:28:45,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:28:45,097 INFO L470 AbstractCegarLoop]: Abstraction has 14138 states and 19340 transitions. [2021-12-22 15:28:45,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-22 15:28:45,098 INFO L276 IsEmpty]: Start isEmpty. Operand 14138 states and 19340 transitions. [2021-12-22 15:28:45,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-22 15:28:45,102 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:28:45,102 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:28:45,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 15:28:45,104 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 2 more)] === [2021-12-22 15:28:45,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:28:45,104 INFO L85 PathProgramCache]: Analyzing trace with hash -218919595, now seen corresponding path program 1 times [2021-12-22 15:28:45,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:28:45,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758852833] [2021-12-22 15:28:45,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:28:45,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:28:45,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:45,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:28:45,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:45,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:45,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:45,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:28:45,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:45,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:45,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:28:45,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:45,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:45,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:28:45,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:45,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:45,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:28:45,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:45,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:45,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:28:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:45,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:45,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 15:28:45,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:45,757 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-12-22 15:28:45,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:28:45,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758852833] [2021-12-22 15:28:45,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758852833] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:28:45,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:28:45,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:28:45,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861316878] [2021-12-22 15:28:45,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:28:45,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:28:45,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:28:45,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:28:45,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:28:45,760 INFO L87 Difference]: Start difference. First operand 14138 states and 19340 transitions. 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, (11), 3 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-22 15:28:50,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:28:50,009 INFO L93 Difference]: Finished difference Result 36144 states and 49494 transitions. [2021-12-22 15:28:50,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:28:50,010 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, (11), 3 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 103 [2021-12-22 15:28:50,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:28:50,129 INFO L225 Difference]: With dead ends: 36144 [2021-12-22 15:28:50,129 INFO L226 Difference]: Without dead ends: 22023 [2021-12-22 15:28:50,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:28:50,196 INFO L933 BasicCegarLoop]: 3662 mSDtfsCounter, 4037 mSDsluCounter, 3993 mSDsCounter, 0 mSdLazyCounter, 2029 mSolverCounterSat, 1650 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4509 SdHoareTripleChecker+Valid, 7655 SdHoareTripleChecker+Invalid, 3679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1650 IncrementalHoareTripleChecker+Valid, 2029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-12-22 15:28:50,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4509 Valid, 7655 Invalid, 3679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1650 Valid, 2029 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-12-22 15:28:50,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22023 states. [2021-12-22 15:28:51,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22023 to 21064. [2021-12-22 15:28:51,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21064 states, 14724 states have (on average 1.256248302091823) internal successors, (18497), 15184 states have internal predecessors, (18497), 5044 states have call successors, (5044), 1307 states have call predecessors, (5044), 1292 states have return successors, (5046), 4818 states have call predecessors, (5046), 5040 states have call successors, (5046) [2021-12-22 15:28:51,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21064 states to 21064 states and 28587 transitions. [2021-12-22 15:28:51,161 INFO L78 Accepts]: Start accepts. Automaton has 21064 states and 28587 transitions. Word has length 103 [2021-12-22 15:28:51,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:28:51,161 INFO L470 AbstractCegarLoop]: Abstraction has 21064 states and 28587 transitions. [2021-12-22 15:28:51,162 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, (11), 3 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-22 15:28:51,162 INFO L276 IsEmpty]: Start isEmpty. Operand 21064 states and 28587 transitions. [2021-12-22 15:28:51,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-12-22 15:28:51,165 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:28:51,166 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 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] [2021-12-22 15:28:51,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 15:28:51,166 INFO L402 AbstractCegarLoop]: === Iteration 5 === 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 2 more)] === [2021-12-22 15:28:51,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:28:51,167 INFO L85 PathProgramCache]: Analyzing trace with hash 346365365, now seen corresponding path program 1 times [2021-12-22 15:28:51,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:28:51,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259763391] [2021-12-22 15:28:51,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:28:51,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:28:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:51,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:28:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:51,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:51,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:51,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:28:51,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:51,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:51,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:51,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:28:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:51,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:51,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:51,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:28:51,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:51,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:51,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:51,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:28:51,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:51,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:51,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:51,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:28:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:51,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:51,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:51,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 15:28:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:51,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 15:28:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:51,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-22 15:28:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:51,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 15:28:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:51,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 15:28:51,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:51,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:28:51,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:51,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-22 15:28:51,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:51,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-22 15:28:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:51,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-22 15:28:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:28:51,760 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-12-22 15:28:51,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:28:51,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259763391] [2021-12-22 15:28:51,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259763391] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:28:51,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:28:51,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:28:51,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583307848] [2021-12-22 15:28:51,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:28:51,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:28:51,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:28:51,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:28:51,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:28:51,764 INFO L87 Difference]: Start difference. First operand 21064 states and 28587 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16)