./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.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 bf04605b927a140287b1c754ad26365df4778b673325ded7dfdba05deed83fbc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 11:00:07,598 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 11:00:07,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 11:00:07,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 11:00:07,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 11:00:07,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 11:00:07,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 11:00:07,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 11:00:07,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 11:00:07,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 11:00:07,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 11:00:07,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 11:00:07,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 11:00:07,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 11:00:07,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 11:00:07,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 11:00:07,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 11:00:07,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 11:00:07,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 11:00:07,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 11:00:07,687 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 11:00:07,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 11:00:07,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 11:00:07,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 11:00:07,694 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 11:00:07,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 11:00:07,700 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 11:00:07,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 11:00:07,701 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 11:00:07,702 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 11:00:07,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 11:00:07,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 11:00:07,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 11:00:07,703 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 11:00:07,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 11:00:07,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 11:00:07,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 11:00:07,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 11:00:07,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 11:00:07,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 11:00:07,706 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 11:00:07,714 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 11:00:07,734 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 11:00:07,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 11:00:07,739 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 11:00:07,739 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 11:00:07,740 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 11:00:07,740 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 11:00:07,740 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 11:00:07,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 11:00:07,741 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 11:00:07,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 11:00:07,742 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 11:00:07,742 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 11:00:07,742 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 11:00:07,742 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 11:00:07,742 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 11:00:07,742 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 11:00:07,743 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 11:00:07,743 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 11:00:07,743 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 11:00:07,743 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 11:00:07,743 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 11:00:07,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 11:00:07,744 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 11:00:07,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 11:00:07,744 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 11:00:07,744 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 11:00:07,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 11:00:07,745 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 11:00:07,745 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 11:00:07,746 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 11:00:07,746 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 11:00:07,746 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf04605b927a140287b1c754ad26365df4778b673325ded7dfdba05deed83fbc [2021-11-17 11:00:07,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 11:00:07,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 11:00:07,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 11:00:07,974 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 11:00:07,975 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 11:00:07,976 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-17 11:00:08,032 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c9e2a154/3cccbd3fe4374175925e3f40ad9f3291/FLAGf71af73c9 [2021-11-17 11:00:08,676 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 11:00:08,676 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-17 11:00:08,719 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c9e2a154/3cccbd3fe4374175925e3f40ad9f3291/FLAGf71af73c9 [2021-11-17 11:00:09,055 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c9e2a154/3cccbd3fe4374175925e3f40ad9f3291 [2021-11-17 11:00:09,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 11:00:09,059 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 11:00:09,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 11:00:09,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 11:00:09,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 11:00:09,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:00:09" (1/1) ... [2021-11-17 11:00:09,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bbf11c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:00:09, skipping insertion in model container [2021-11-17 11:00:09,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:00:09" (1/1) ... [2021-11-17 11:00:09,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 11:00:09,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 11:00:11,326 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422318,422331] [2021-11-17 11:00:11,329 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422487,422500] [2021-11-17 11:00:11,329 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422654,422667] [2021-11-17 11:00:11,330 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422822,422835] [2021-11-17 11:00:11,347 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 11:00:11,383 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 11:00:11,693 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422318,422331] [2021-11-17 11:00:11,694 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422487,422500] [2021-11-17 11:00:11,694 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422654,422667] [2021-11-17 11:00:11,694 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422822,422835] [2021-11-17 11:00:11,702 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 11:00:11,856 INFO L208 MainTranslator]: Completed translation [2021-11-17 11:00:11,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:00:11 WrapperNode [2021-11-17 11:00:11,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 11:00:11,858 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 11:00:11,858 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 11:00:11,858 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 11:00:11,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:00:11" (1/1) ... [2021-11-17 11:00:11,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:00:11" (1/1) ... [2021-11-17 11:00:12,128 INFO L137 Inliner]: procedures = 559, calls = 2867, calls flagged for inlining = 295, calls inlined = 261, statements flattened = 7359 [2021-11-17 11:00:12,128 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 11:00:12,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 11:00:12,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 11:00:12,129 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 11:00:12,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:00:11" (1/1) ... [2021-11-17 11:00:12,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:00:11" (1/1) ... [2021-11-17 11:00:12,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:00:11" (1/1) ... [2021-11-17 11:00:12,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:00:11" (1/1) ... [2021-11-17 11:00:12,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:00:11" (1/1) ... [2021-11-17 11:00:12,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:00:11" (1/1) ... [2021-11-17 11:00:12,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:00:11" (1/1) ... [2021-11-17 11:00:12,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 11:00:12,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 11:00:12,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 11:00:12,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 11:00:12,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:00:11" (1/1) ... [2021-11-17 11:00:12,380 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 11:00:12,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 11:00:12,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 11:00:12,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 11:00:12,442 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-11-17 11:00:12,442 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-11-17 11:00:12,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 11:00:12,442 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 11:00:12,442 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-17 11:00:12,442 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-17 11:00:12,443 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-17 11:00:12,443 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-17 11:00:12,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 11:00:12,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 11:00:12,443 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-17 11:00:12,443 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-17 11:00:12,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 11:00:12,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 11:00:12,444 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-17 11:00:12,444 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-17 11:00:12,444 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-17 11:00:12,444 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-17 11:00:12,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_63 [2021-11-17 11:00:12,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_63 [2021-11-17 11:00:12,444 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_interrupt [2021-11-17 11:00:12,445 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_interrupt [2021-11-17 11:00:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-17 11:00:12,445 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-17 11:00:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-17 11:00:12,445 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-17 11:00:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 11:00:12,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 11:00:12,446 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-17 11:00:12,446 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-17 11:00:12,446 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 11:00:12,446 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 11:00:12,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 11:00:12,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 11:00:12,446 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-17 11:00:12,446 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-17 11:00:12,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 11:00:12,447 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_bcr [2021-11-17 11:00:12,447 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_bcr [2021-11-17 11:00:12,447 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 11:00:12,447 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 11:00:12,447 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-17 11:00:12,447 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-17 11:00:12,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 11:00:12,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pcnet32_cleanup_module_16_2 [2021-11-17 11:00:12,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pcnet32_cleanup_module_16_2 [2021-11-17 11:00:12,448 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 11:00:12,448 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 11:00:12,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-17 11:00:12,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-17 11:00:12,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 11:00:12,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 11:00:12,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 11:00:12,449 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_tx_ring [2021-11-17 11:00:12,449 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_tx_ring [2021-11-17 11:00:12,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 11:00:12,449 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 11:00:12,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 11:00:12,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 11:00:12,450 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 11:00:12,450 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_bcr [2021-11-17 11:00:12,450 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_bcr [2021-11-17 11:00:12,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-17 11:00:12,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-17 11:00:12,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-17 11:00:12,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-17 11:00:12,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-17 11:00:12,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-17 11:00:12,451 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-17 11:00:12,451 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-17 11:00:12,451 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-17 11:00:12,451 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-17 11:00:12,451 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_start [2021-11-17 11:00:12,452 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_start [2021-11-17 11:00:12,452 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-17 11:00:12,452 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-17 11:00:12,452 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~~u16~0 [2021-11-17 11:00:12,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~~u16~0 [2021-11-17 11:00:12,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-17 11:00:12,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-17 11:00:12,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 11:00:12,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-17 11:00:12,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-17 11:00:12,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-17 11:00:12,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-17 11:00:12,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-17 11:00:12,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-17 11:00:12,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-17 11:00:12,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-17 11:00:12,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-17 11:00:12,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-17 11:00:12,454 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_open [2021-11-17 11:00:12,454 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_open [2021-11-17 11:00:12,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 11:00:12,454 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-17 11:00:12,454 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-17 11:00:12,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 11:00:12,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 11:00:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 11:00:12,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 11:00:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 11:00:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-17 11:00:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 11:00:12,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 11:00:12,456 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_reset [2021-11-17 11:00:12,456 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_reset [2021-11-17 11:00:12,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_pcnet32_private [2021-11-17 11:00:12,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_pcnet32_private [2021-11-17 11:00:12,456 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-17 11:00:12,456 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-17 11:00:12,456 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_restart [2021-11-17 11:00:12,456 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_restart [2021-11-17 11:00:12,457 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-17 11:00:12,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-17 11:00:12,457 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-17 11:00:12,457 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-17 11:00:12,457 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 11:00:12,457 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 11:00:12,457 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-17 11:00:12,457 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-17 11:00:12,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-17 11:00:12,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-17 11:00:12,458 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_csr [2021-11-17 11:00:12,458 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_csr [2021-11-17 11:00:12,458 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-17 11:00:12,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-17 11:00:12,458 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-17 11:00:12,459 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-17 11:00:12,459 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_reset [2021-11-17 11:00:12,459 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_reset [2021-11-17 11:00:12,459 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-17 11:00:12,459 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-17 11:00:12,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 11:00:12,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 11:00:12,459 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-17 11:00:12,460 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-17 11:00:12,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 11:00:12,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 11:00:12,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 11:00:12,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 11:00:12,460 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_pm_resume [2021-11-17 11:00:12,460 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_pm_resume [2021-11-17 11:00:12,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 11:00:12,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 11:00:12,461 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_check_media [2021-11-17 11:00:12,461 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_check_media [2021-11-17 11:00:12,461 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_get_regs_len [2021-11-17 11:00:12,461 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_get_regs_len [2021-11-17 11:00:12,461 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-17 11:00:12,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-17 11:00:12,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-17 11:00:12,462 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_poll_controller [2021-11-17 11:00:12,462 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_poll_controller [2021-11-17 11:00:12,462 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_free_ring [2021-11-17 11:00:12,462 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_free_ring [2021-11-17 11:00:12,462 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-17 11:00:12,462 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-17 11:00:12,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 11:00:12,462 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 11:00:12,463 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-17 11:00:12,463 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-17 11:00:12,463 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 11:00:12,463 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 11:00:12,463 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-17 11:00:12,463 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-17 11:00:12,463 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2021-11-17 11:00:12,463 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2021-11-17 11:00:12,464 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_rx_ring [2021-11-17 11:00:12,464 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_rx_ring [2021-11-17 11:00:12,464 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_csr [2021-11-17 11:00:12,464 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_csr [2021-11-17 11:00:12,464 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_tx_timeout [2021-11-17 11:00:12,464 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_tx_timeout [2021-11-17 11:00:12,464 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-17 11:00:12,464 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-17 11:00:12,465 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_stop [2021-11-17 11:00:12,465 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_stop [2021-11-17 11:00:12,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 11:00:12,465 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-17 11:00:12,465 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-17 11:00:12,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 11:00:12,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_pcnet32_private [2021-11-17 11:00:12,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_pcnet32_private [2021-11-17 11:00:12,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 11:00:12,466 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_csr [2021-11-17 11:00:12,466 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_csr [2021-11-17 11:00:12,466 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_set_multicast_list [2021-11-17 11:00:12,466 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_set_multicast_list [2021-11-17 11:00:12,466 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-11-17 11:00:12,466 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-11-17 11:00:12,466 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 11:00:12,467 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 11:00:12,467 INFO L130 BoogieDeclarations]: Found specification of procedure mii_link_ok [2021-11-17 11:00:12,467 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_link_ok [2021-11-17 11:00:12,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 11:00:12,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 11:00:12,467 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_probe1 [2021-11-17 11:00:12,467 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_probe1 [2021-11-17 11:00:12,467 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-11-17 11:00:12,468 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-11-17 11:00:12,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-17 11:00:12,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-17 11:00:12,468 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_remove_one [2021-11-17 11:00:12,468 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_remove_one [2021-11-17 11:00:12,468 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_sset [2021-11-17 11:00:12,468 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_sset [2021-11-17 11:00:12,468 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2021-11-17 11:00:12,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2021-11-17 11:00:12,469 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_bcr [2021-11-17 11:00:12,469 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_bcr [2021-11-17 11:00:12,469 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-17 11:00:12,469 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-17 11:00:12,469 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-17 11:00:12,469 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-17 11:00:12,469 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 11:00:12,469 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 11:00:12,470 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_bcr [2021-11-17 11:00:12,470 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_bcr [2021-11-17 11:00:12,470 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 11:00:12,470 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 11:00:12,470 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_init_ring [2021-11-17 11:00:12,470 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_init_ring [2021-11-17 11:00:12,470 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_close [2021-11-17 11:00:12,470 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_close [2021-11-17 11:00:12,471 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-17 11:00:12,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-17 11:00:12,471 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 11:00:12,471 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 11:00:12,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 11:00:12,471 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_suspend [2021-11-17 11:00:12,471 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_suspend [2021-11-17 11:00:12,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 11:00:12,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 11:00:12,472 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-17 11:00:12,472 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-17 11:00:12,472 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-17 11:00:12,472 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-17 11:00:12,472 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_csr [2021-11-17 11:00:12,472 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_csr [2021-11-17 11:00:12,472 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_load_multicast [2021-11-17 11:00:12,472 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_load_multicast [2021-11-17 11:00:12,473 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-17 11:00:12,473 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-17 11:00:12,473 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_nway_reset [2021-11-17 11:00:12,473 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_nway_reset [2021-11-17 11:00:12,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 11:00:12,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 11:00:12,473 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-17 11:00:12,473 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-17 11:00:12,474 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-17 11:00:12,474 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-17 11:00:12,474 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-17 11:00:12,474 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-17 11:00:12,474 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-11-17 11:00:12,474 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-11-17 11:00:12,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 11:00:12,474 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-11-17 11:00:12,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-11-17 11:00:12,475 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-11-17 11:00:12,475 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-11-17 11:00:12,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-17 11:00:12,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-17 11:00:12,475 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-17 11:00:12,475 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-17 11:00:13,296 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 11:00:13,304 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 11:00:13,494 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 11:00:17,922 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-17 11:00:18,002 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 11:00:18,016 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 11:00:18,016 INFO L301 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-17 11:00:18,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:00:18 BoogieIcfgContainer [2021-11-17 11:00:18,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 11:00:18,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 11:00:18,021 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 11:00:18,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 11:00:18,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 11:00:09" (1/3) ... [2021-11-17 11:00:18,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75120abf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:00:18, skipping insertion in model container [2021-11-17 11:00:18,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:00:11" (2/3) ... [2021-11-17 11:00:18,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75120abf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:00:18, skipping insertion in model container [2021-11-17 11:00:18,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:00:18" (3/3) ... [2021-11-17 11:00:18,025 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-17 11:00:18,029 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 11:00:18,029 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-17 11:00:18,066 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 11:00:18,070 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 11:00:18,071 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-17 11:00:18,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 2673 states, 1858 states have (on average 1.3003229278794401) internal successors, (2416), 1900 states have internal predecessors, (2416), 692 states have call successors, (692), 123 states have call predecessors, (692), 122 states have return successors, (684), 671 states have call predecessors, (684), 684 states have call successors, (684) [2021-11-17 11:00:18,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-17 11:00:18,127 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:00:18,128 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:00:18,129 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 11:00:18,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:00:18,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1294892158, now seen corresponding path program 1 times [2021-11-17 11:00:18,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:00:18,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124370892] [2021-11-17 11:00:18,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:00:18,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:00:18,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:00:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:18,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:00:18,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:18,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:00:18,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:18,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:00:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:00:18,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:00:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:18,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:00:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:18,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:00:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:00:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:00:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:18,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:00:18,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:18,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:00:18,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:18,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:00:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:18,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 11:00:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 11:00:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:18,983 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-17 11:00:18,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:00:18,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124370892] [2021-11-17 11:00:18,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124370892] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:00:18,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:00:18,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:00:18,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910292602] [2021-11-17 11:00:18,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:00:18,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:00:18,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:00:19,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:00:19,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:00:19,012 INFO L87 Difference]: Start difference. First operand has 2673 states, 1858 states have (on average 1.3003229278794401) internal successors, (2416), 1900 states have internal predecessors, (2416), 692 states have call successors, (692), 123 states have call predecessors, (692), 122 states have return successors, (684), 671 states have call predecessors, (684), 684 states have call successors, (684) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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) [2021-11-17 11:00:21,049 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:00:23,127 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:00:27,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:00:27,798 INFO L93 Difference]: Finished difference Result 7907 states and 11503 transitions. [2021-11-17 11:00:27,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 11:00:27,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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) Word has length 171 [2021-11-17 11:00:27,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:00:27,878 INFO L225 Difference]: With dead ends: 7907 [2021-11-17 11:00:27,878 INFO L226 Difference]: Without dead ends: 5253 [2021-11-17 11:00:27,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:00:27,918 INFO L933 BasicCegarLoop]: 3960 mSDtfsCounter, 4472 mSDsluCounter, 4293 mSDsCounter, 0 mSdLazyCounter, 2340 mSolverCounterSat, 1952 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5084 SdHoareTripleChecker+Valid, 8253 SdHoareTripleChecker+Invalid, 4294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1952 IncrementalHoareTripleChecker+Valid, 2340 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-17 11:00:27,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5084 Valid, 8253 Invalid, 4294 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1952 Valid, 2340 Invalid, 2 Unknown, 0 Unchecked, 8.4s Time] [2021-11-17 11:00:27,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5253 states. [2021-11-17 11:00:28,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5253 to 5097. [2021-11-17 11:00:28,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5097 states, 3550 states have (on average 1.287887323943662) internal successors, (4572), 3627 states have internal predecessors, (4572), 1304 states have call successors, (1304), 241 states have call predecessors, (1304), 240 states have return successors, (1300), 1275 states have call predecessors, (1300), 1300 states have call successors, (1300) [2021-11-17 11:00:28,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5097 states to 5097 states and 7176 transitions. [2021-11-17 11:00:28,179 INFO L78 Accepts]: Start accepts. Automaton has 5097 states and 7176 transitions. Word has length 171 [2021-11-17 11:00:28,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:00:28,182 INFO L470 AbstractCegarLoop]: Abstraction has 5097 states and 7176 transitions. [2021-11-17 11:00:28,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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) [2021-11-17 11:00:28,182 INFO L276 IsEmpty]: Start isEmpty. Operand 5097 states and 7176 transitions. [2021-11-17 11:00:28,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-17 11:00:28,191 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:00:28,191 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:00:28,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 11:00:28,192 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 11:00:28,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:00:28,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1901454946, now seen corresponding path program 1 times [2021-11-17 11:00:28,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:00:28,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022989359] [2021-11-17 11:00:28,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:00:28,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:00:28,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:00:28,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:00:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:00:28,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:00:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:28,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:00:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:00:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:28,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:00:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:00:28,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:00:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:28,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:00:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:28,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:00:28,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:00:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:28,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:00:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:28,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 11:00:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 11:00:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 11:00:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:28,515 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-17 11:00:28,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:00:28,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022989359] [2021-11-17 11:00:28,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022989359] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:00:28,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:00:28,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:00:28,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546419602] [2021-11-17 11:00:28,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:00:28,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:00:28,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:00:28,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:00:28,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:00:28,518 INFO L87 Difference]: Start difference. First operand 5097 states and 7176 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-17 11:00:30,018 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:00:32,078 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:00:36,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:00:36,889 INFO L93 Difference]: Finished difference Result 15393 states and 21792 transitions. [2021-11-17 11:00:36,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 11:00:36,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 175 [2021-11-17 11:00:36,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:00:36,945 INFO L225 Difference]: With dead ends: 15393 [2021-11-17 11:00:36,946 INFO L226 Difference]: Without dead ends: 10327 [2021-11-17 11:00:36,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:00:36,973 INFO L933 BasicCegarLoop]: 4184 mSDtfsCounter, 4499 mSDsluCounter, 4473 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 1972 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5105 SdHoareTripleChecker+Valid, 8657 SdHoareTripleChecker+Invalid, 4282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1972 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2021-11-17 11:00:36,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5105 Valid, 8657 Invalid, 4282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1972 Valid, 2309 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2021-11-17 11:00:36,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10327 states. [2021-11-17 11:00:37,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10327 to 10151. [2021-11-17 11:00:37,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10151 states, 7099 states have (on average 1.2894773911818567) internal successors, (9154), 7271 states have internal predecessors, (9154), 2557 states have call successors, (2557), 480 states have call predecessors, (2557), 492 states have return successors, (2641), 2491 states have call predecessors, (2641), 2553 states have call successors, (2641) [2021-11-17 11:00:37,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10151 states to 10151 states and 14352 transitions. [2021-11-17 11:00:37,397 INFO L78 Accepts]: Start accepts. Automaton has 10151 states and 14352 transitions. Word has length 175 [2021-11-17 11:00:37,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:00:37,398 INFO L470 AbstractCegarLoop]: Abstraction has 10151 states and 14352 transitions. [2021-11-17 11:00:37,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-17 11:00:37,399 INFO L276 IsEmpty]: Start isEmpty. Operand 10151 states and 14352 transitions. [2021-11-17 11:00:37,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-17 11:00:37,401 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:00:37,401 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:00:37,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 11:00:37,401 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 11:00:37,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:00:37,402 INFO L85 PathProgramCache]: Analyzing trace with hash 821671759, now seen corresponding path program 1 times [2021-11-17 11:00:37,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:00:37,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240299183] [2021-11-17 11:00:37,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:00:37,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:00:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:00:37,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:00:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:00:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:37,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:00:37,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:00:37,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:37,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:00:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:00:37,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:00:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:00:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:00:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:00:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:00:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:00:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 11:00:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 11:00:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:37,703 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-17 11:00:37,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:00:37,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240299183] [2021-11-17 11:00:37,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240299183] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:00:37,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:00:37,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:00:37,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107377583] [2021-11-17 11:00:37,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:00:37,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:00:37,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:00:37,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:00:37,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:00:37,707 INFO L87 Difference]: Start difference. First operand 10151 states and 14352 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, (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) [2021-11-17 11:00:39,756 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:00:44,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:00:44,799 INFO L93 Difference]: Finished difference Result 28089 states and 39650 transitions. [2021-11-17 11:00:44,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 11:00:44,800 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, (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) Word has length 174 [2021-11-17 11:00:44,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:00:44,901 INFO L225 Difference]: With dead ends: 28089 [2021-11-17 11:00:44,901 INFO L226 Difference]: Without dead ends: 17969 [2021-11-17 11:00:44,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:00:44,948 INFO L933 BasicCegarLoop]: 3802 mSDtfsCounter, 3666 mSDsluCounter, 4254 mSDsCounter, 0 mSdLazyCounter, 2251 mSolverCounterSat, 1807 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4146 SdHoareTripleChecker+Valid, 8056 SdHoareTripleChecker+Invalid, 4059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1807 IncrementalHoareTripleChecker+Valid, 2251 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-17 11:00:44,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4146 Valid, 8056 Invalid, 4059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1807 Valid, 2251 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2021-11-17 11:00:44,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17969 states. [2021-11-17 11:00:45,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17969 to 17543. [2021-11-17 11:00:45,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17543 states, 12241 states have (on average 1.2896005228331018) internal successors, (15786), 12529 states have internal predecessors, (15786), 4357 states have call successors, (4357), 934 states have call predecessors, (4357), 942 states have return successors, (4491), 4213 states have call predecessors, (4491), 4353 states have call successors, (4491) [2021-11-17 11:00:45,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17543 states to 17543 states and 24634 transitions. [2021-11-17 11:00:45,601 INFO L78 Accepts]: Start accepts. Automaton has 17543 states and 24634 transitions. Word has length 174 [2021-11-17 11:00:45,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:00:45,602 INFO L470 AbstractCegarLoop]: Abstraction has 17543 states and 24634 transitions. [2021-11-17 11:00:45,602 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, (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) [2021-11-17 11:00:45,603 INFO L276 IsEmpty]: Start isEmpty. Operand 17543 states and 24634 transitions. [2021-11-17 11:00:45,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-17 11:00:45,605 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:00:45,605 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:00:45,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 11:00:45,605 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 11:00:45,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:00:45,606 INFO L85 PathProgramCache]: Analyzing trace with hash 999564978, now seen corresponding path program 1 times [2021-11-17 11:00:45,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:00:45,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238815086] [2021-11-17 11:00:45,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:00:45,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:00:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:00:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:00:45,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:45,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:00:45,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:00:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:45,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:00:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:00:45,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:45,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:00:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:00:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:00:45,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:45,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:00:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:45,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:00:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:00:45,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:45,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:00:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 11:00:45,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-17 11:00:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:45,957 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-17 11:00:45,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:00:45,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238815086] [2021-11-17 11:00:45,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238815086] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:00:45,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:00:45,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:00:45,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220572750] [2021-11-17 11:00:45,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:00:45,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:00:45,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:00:45,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:00:45,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:00:45,961 INFO L87 Difference]: Start difference. First operand 17543 states and 24634 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-17 11:00:47,985 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:00:52,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:00:52,513 INFO L93 Difference]: Finished difference Result 40378 states and 56317 transitions. [2021-11-17 11:00:52,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 11:00:52,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 177 [2021-11-17 11:00:52,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:00:52,606 INFO L225 Difference]: With dead ends: 40378 [2021-11-17 11:00:52,606 INFO L226 Difference]: Without dead ends: 22866 [2021-11-17 11:00:52,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:00:52,662 INFO L933 BasicCegarLoop]: 5994 mSDtfsCounter, 3624 mSDsluCounter, 5342 mSDsCounter, 0 mSdLazyCounter, 2407 mSolverCounterSat, 1483 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4214 SdHoareTripleChecker+Valid, 11336 SdHoareTripleChecker+Invalid, 3891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1483 IncrementalHoareTripleChecker+Valid, 2407 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-11-17 11:00:52,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4214 Valid, 11336 Invalid, 3891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1483 Valid, 2407 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2021-11-17 11:00:52,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22866 states. [2021-11-17 11:00:53,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22866 to 22191. [2021-11-17 11:00:53,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22191 states, 15454 states have (on average 1.2807687330141064) internal successors, (19793), 15791 states have internal predecessors, (19793), 5343 states have call successors, (5343), 1397 states have call predecessors, (5343), 1391 states have return successors, (5456), 5138 states have call predecessors, (5456), 5339 states have call successors, (5456) [2021-11-17 11:00:53,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22191 states to 22191 states and 30592 transitions. [2021-11-17 11:00:53,405 INFO L78 Accepts]: Start accepts. Automaton has 22191 states and 30592 transitions. Word has length 177 [2021-11-17 11:00:53,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:00:53,406 INFO L470 AbstractCegarLoop]: Abstraction has 22191 states and 30592 transitions. [2021-11-17 11:00:53,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-17 11:00:53,406 INFO L276 IsEmpty]: Start isEmpty. Operand 22191 states and 30592 transitions. [2021-11-17 11:00:53,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-11-17 11:00:53,410 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:00:53,410 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:00:53,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 11:00:53,411 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 11:00:53,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:00:53,411 INFO L85 PathProgramCache]: Analyzing trace with hash -674766659, now seen corresponding path program 1 times [2021-11-17 11:00:53,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:00:53,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225020058] [2021-11-17 11:00:53,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:00:53,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:00:53,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:00:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:53,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:00:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:53,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:00:53,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:00:53,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:53,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:00:53,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:53,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:00:53,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:53,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:00:53,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:53,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:00:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:00:53,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:53,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:00:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:53,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:00:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:00:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:53,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:00:53,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:53,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 11:00:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 11:00:53,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 11:00:53,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 11:00:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 11:00:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:00:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 11:00:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 11:00:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-17 11:00:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:00:53,823 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-11-17 11:00:53,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:00:53,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225020058] [2021-11-17 11:00:53,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225020058] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:00:53,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:00:53,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:00:53,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704814978] [2021-11-17 11:00:53,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:00:53,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:00:53,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:00:53,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:00:53,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:00:53,825 INFO L87 Difference]: Start difference. First operand 22191 states and 30592 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, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-17 11:00:55,848 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:00:57,928 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:01:02,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:01:02,219 INFO L93 Difference]: Finished difference Result 57521 states and 79656 transitions. [2021-11-17 11:01:02,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 11:01:02,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 236 [2021-11-17 11:01:02,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:01:02,350 INFO L225 Difference]: With dead ends: 57521 [2021-11-17 11:01:02,351 INFO L226 Difference]: Without dead ends: 35616 [2021-11-17 11:01:02,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:01:02,422 INFO L933 BasicCegarLoop]: 5564 mSDtfsCounter, 3876 mSDsluCounter, 5169 mSDsCounter, 0 mSdLazyCounter, 2351 mSolverCounterSat, 1594 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4480 SdHoareTripleChecker+Valid, 10733 SdHoareTripleChecker+Invalid, 3947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1594 IncrementalHoareTripleChecker+Valid, 2351 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-17 11:01:02,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4480 Valid, 10733 Invalid, 3947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1594 Valid, 2351 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2021-11-17 11:01:02,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35616 states. [2021-11-17 11:01:03,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35616 to 34664. [2021-11-17 11:01:03,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34664 states, 24202 states have (on average 1.2818362118833155) internal successors, (31023), 24727 states have internal predecessors, (31023), 8368 states have call successors, (8368), 2093 states have call predecessors, (8368), 2091 states have return successors, (8542), 8082 states have call predecessors, (8542), 8364 states have call successors, (8542) [2021-11-17 11:01:03,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34664 states to 34664 states and 47933 transitions. [2021-11-17 11:01:03,604 INFO L78 Accepts]: Start accepts. Automaton has 34664 states and 47933 transitions. Word has length 236 [2021-11-17 11:01:03,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:01:03,606 INFO L470 AbstractCegarLoop]: Abstraction has 34664 states and 47933 transitions. [2021-11-17 11:01:03,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-17 11:01:03,607 INFO L276 IsEmpty]: Start isEmpty. Operand 34664 states and 47933 transitions. [2021-11-17 11:01:03,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-11-17 11:01:03,611 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:01:03,611 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:01:03,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 11:01:03,612 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 11:01:03,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:01:03,612 INFO L85 PathProgramCache]: Analyzing trace with hash -534218049, now seen corresponding path program 1 times [2021-11-17 11:01:03,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:01:03,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950070529] [2021-11-17 11:01:03,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:01:03,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:01:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:01:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:01:03,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:03,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:01:03,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:03,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:01:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:03,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:01:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:01:03,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:03,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:01:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:03,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:01:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:01:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:01:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:03,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:01:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:03,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:01:03,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:01:03,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:03,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 11:01:03,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 11:01:03,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 11:01:03,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 11:01:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 11:01:03,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:03,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:04,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 11:01:04,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:04,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 11:01:04,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:04,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-17 11:01:04,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:04,027 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2021-11-17 11:01:04,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:01:04,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950070529] [2021-11-17 11:01:04,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950070529] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:01:04,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:01:04,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:01:04,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518825235] [2021-11-17 11:01:04,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:01:04,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:01:04,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:01:04,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:01:04,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:01:04,029 INFO L87 Difference]: Start difference. First operand 34664 states and 47933 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 11:01:08,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:01:08,162 INFO L93 Difference]: Finished difference Result 35876 states and 49696 transitions. [2021-11-17 11:01:08,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 11:01:08,163 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 236 [2021-11-17 11:01:08,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:01:08,324 INFO L225 Difference]: With dead ends: 35876 [2021-11-17 11:01:08,325 INFO L226 Difference]: Without dead ends: 35874 [2021-11-17 11:01:08,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 11:01:08,345 INFO L933 BasicCegarLoop]: 3488 mSDtfsCounter, 3758 mSDsluCounter, 7127 mSDsCounter, 0 mSdLazyCounter, 2681 mSolverCounterSat, 1338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4181 SdHoareTripleChecker+Valid, 10615 SdHoareTripleChecker+Invalid, 4019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1338 IncrementalHoareTripleChecker+Valid, 2681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-17 11:01:08,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4181 Valid, 10615 Invalid, 4019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1338 Valid, 2681 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-11-17 11:01:08,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35874 states. [2021-11-17 11:01:09,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35874 to 34924. [2021-11-17 11:01:09,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34924 states, 24373 states have (on average 1.2808435563943708) internal successors, (31218), 24914 states have internal predecessors, (31218), 8400 states have call successors, (8400), 2150 states have call predecessors, (8400), 2148 states have return successors, (8574), 8114 states have call predecessors, (8574), 8396 states have call successors, (8574) [2021-11-17 11:01:09,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34924 states to 34924 states and 48192 transitions. [2021-11-17 11:01:09,505 INFO L78 Accepts]: Start accepts. Automaton has 34924 states and 48192 transitions. Word has length 236 [2021-11-17 11:01:09,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:01:09,505 INFO L470 AbstractCegarLoop]: Abstraction has 34924 states and 48192 transitions. [2021-11-17 11:01:09,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 11:01:09,506 INFO L276 IsEmpty]: Start isEmpty. Operand 34924 states and 48192 transitions. [2021-11-17 11:01:09,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-11-17 11:01:09,510 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:01:09,510 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:01:09,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 11:01:09,510 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 11:01:09,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:01:09,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1794816192, now seen corresponding path program 1 times [2021-11-17 11:01:09,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:01:09,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299811811] [2021-11-17 11:01:09,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:01:09,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:01:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:01:09,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:01:09,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:09,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:01:09,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:09,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:01:09,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:01:09,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:01:09,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:09,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:01:09,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:01:09,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:09,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:01:09,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:01:09,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:09,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:01:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:09,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:01:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:01:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:09,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 11:01:09,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 11:01:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 11:01:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 11:01:09,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 11:01:09,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:09,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 11:01:09,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 11:01:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-11-17 11:01:09,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 11:01:09,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 11:01:09,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:09,833 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-11-17 11:01:09,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:01:09,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299811811] [2021-11-17 11:01:09,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299811811] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:01:09,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:01:09,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 11:01:09,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23008301] [2021-11-17 11:01:09,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:01:09,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 11:01:09,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:01:09,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 11:01:09,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:01:09,835 INFO L87 Difference]: Start difference. First operand 34924 states and 48192 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-17 11:01:11,859 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:01:14,260 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:01:18,627 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:01:25,668 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:01:27,581 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:01:34,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:01:34,652 INFO L93 Difference]: Finished difference Result 84262 states and 116697 transitions. [2021-11-17 11:01:34,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 11:01:34,653 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 244 [2021-11-17 11:01:34,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:01:34,845 INFO L225 Difference]: With dead ends: 84262 [2021-11-17 11:01:34,845 INFO L226 Difference]: Without dead ends: 49624 [2021-11-17 11:01:34,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 11:01:34,954 INFO L933 BasicCegarLoop]: 6564 mSDtfsCounter, 4261 mSDsluCounter, 6868 mSDsCounter, 0 mSdLazyCounter, 5971 mSolverCounterSat, 2574 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4741 SdHoareTripleChecker+Valid, 13432 SdHoareTripleChecker+Invalid, 8547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2574 IncrementalHoareTripleChecker+Valid, 5971 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time [2021-11-17 11:01:34,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4741 Valid, 13432 Invalid, 8547 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2574 Valid, 5971 Invalid, 2 Unknown, 0 Unchecked, 22.9s Time] [2021-11-17 11:01:34,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49624 states. [2021-11-17 11:01:36,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49624 to 47545. [2021-11-17 11:01:36,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47545 states, 33221 states have (on average 1.2811173655218084) internal successors, (42560), 33962 states have internal predecessors, (42560), 11441 states have call successors, (11441), 2874 states have call predecessors, (11441), 2880 states have return successors, (11684), 11074 states have call predecessors, (11684), 11437 states have call successors, (11684) [2021-11-17 11:01:36,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47545 states to 47545 states and 65685 transitions. [2021-11-17 11:01:36,977 INFO L78 Accepts]: Start accepts. Automaton has 47545 states and 65685 transitions. Word has length 244 [2021-11-17 11:01:36,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:01:36,978 INFO L470 AbstractCegarLoop]: Abstraction has 47545 states and 65685 transitions. [2021-11-17 11:01:36,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-17 11:01:36,978 INFO L276 IsEmpty]: Start isEmpty. Operand 47545 states and 65685 transitions. [2021-11-17 11:01:36,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-11-17 11:01:36,985 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:01:36,985 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:01:36,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 11:01:36,985 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 11:01:36,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:01:36,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1319345626, now seen corresponding path program 1 times [2021-11-17 11:01:36,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:01:36,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327246134] [2021-11-17 11:01:36,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:01:36,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:01:37,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:01:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:37,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:01:37,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:37,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:01:37,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:37,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:01:37,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:37,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:01:37,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:01:37,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:37,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:01:37,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:01:37,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:37,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:01:37,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:01:37,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:01:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:37,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:01:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:37,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:01:37,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:37,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 11:01:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 11:01:37,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 11:01:37,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 11:01:37,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 11:01:37,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 11:01:37,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 11:01:37,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-17 11:01:37,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 11:01:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:37,412 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2021-11-17 11:01:37,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:01:37,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327246134] [2021-11-17 11:01:37,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327246134] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:01:37,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:01:37,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:01:37,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486001286] [2021-11-17 11:01:37,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:01:37,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:01:37,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:01:37,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:01:37,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:01:37,415 INFO L87 Difference]: Start difference. First operand 47545 states and 65685 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 11:01:39,445 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:01:44,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:01:44,283 INFO L93 Difference]: Finished difference Result 48807 states and 67681 transitions. [2021-11-17 11:01:44,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 11:01:44,284 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 241 [2021-11-17 11:01:44,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:01:44,422 INFO L225 Difference]: With dead ends: 48807 [2021-11-17 11:01:44,422 INFO L226 Difference]: Without dead ends: 48805 [2021-11-17 11:01:44,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 11:01:44,446 INFO L933 BasicCegarLoop]: 3490 mSDtfsCounter, 3731 mSDsluCounter, 7116 mSDsCounter, 0 mSdLazyCounter, 2630 mSolverCounterSat, 1342 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4149 SdHoareTripleChecker+Valid, 10606 SdHoareTripleChecker+Invalid, 3973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1342 IncrementalHoareTripleChecker+Valid, 2630 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-11-17 11:01:44,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4149 Valid, 10606 Invalid, 3973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1342 Valid, 2630 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2021-11-17 11:01:44,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48805 states. [2021-11-17 11:01:46,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48805 to 47549. [2021-11-17 11:01:46,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47549 states, 33224 states have (on average 1.281091981699976) internal successors, (42563), 33965 states have internal predecessors, (42563), 11441 states have call successors, (11441), 2875 states have call predecessors, (11441), 2881 states have return successors, (11684), 11074 states have call predecessors, (11684), 11437 states have call successors, (11684) [2021-11-17 11:01:46,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47549 states to 47549 states and 65688 transitions. [2021-11-17 11:01:46,522 INFO L78 Accepts]: Start accepts. Automaton has 47549 states and 65688 transitions. Word has length 241 [2021-11-17 11:01:46,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:01:46,522 INFO L470 AbstractCegarLoop]: Abstraction has 47549 states and 65688 transitions. [2021-11-17 11:01:46,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 11:01:46,523 INFO L276 IsEmpty]: Start isEmpty. Operand 47549 states and 65688 transitions. [2021-11-17 11:01:46,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-11-17 11:01:46,528 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:01:46,528 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:01:46,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 11:01:46,528 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 11:01:46,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:01:46,529 INFO L85 PathProgramCache]: Analyzing trace with hash -2023679265, now seen corresponding path program 1 times [2021-11-17 11:01:46,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:01:46,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521368103] [2021-11-17 11:01:46,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:01:46,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:01:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:01:46,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:01:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:01:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:01:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:46,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:01:46,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:46,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:01:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:46,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:01:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:01:46,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:01:46,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:01:46,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:01:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:46,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:01:46,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:46,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:01:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 11:01:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 11:01:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 11:01:46,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 11:01:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 11:01:46,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:46,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 11:01:46,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 11:01:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-17 11:01:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 11:01:46,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-11-17 11:01:46,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:46,864 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 914 trivial. 0 not checked. [2021-11-17 11:01:46,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:01:46,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521368103] [2021-11-17 11:01:46,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521368103] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:01:46,864 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:01:46,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:01:46,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804743592] [2021-11-17 11:01:46,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:01:46,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:01:46,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:01:46,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:01:46,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:01:46,866 INFO L87 Difference]: Start difference. First operand 47549 states and 65688 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 11:01:51,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:01:51,957 INFO L93 Difference]: Finished difference Result 48811 states and 67684 transitions. [2021-11-17 11:01:51,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 11:01:51,958 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 246 [2021-11-17 11:01:51,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:01:52,151 INFO L225 Difference]: With dead ends: 48811 [2021-11-17 11:01:52,152 INFO L226 Difference]: Without dead ends: 48809 [2021-11-17 11:01:52,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 11:01:52,185 INFO L933 BasicCegarLoop]: 3491 mSDtfsCounter, 3731 mSDsluCounter, 7119 mSDsCounter, 0 mSdLazyCounter, 2631 mSolverCounterSat, 1341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4148 SdHoareTripleChecker+Valid, 10610 SdHoareTripleChecker+Invalid, 3972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1341 IncrementalHoareTripleChecker+Valid, 2631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-17 11:01:52,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4148 Valid, 10610 Invalid, 3972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1341 Valid, 2631 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-11-17 11:01:52,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48809 states. [2021-11-17 11:01:53,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48809 to 47553. [2021-11-17 11:01:53,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47553 states, 33227 states have (on average 1.2810666024618533) internal successors, (42566), 33968 states have internal predecessors, (42566), 11441 states have call successors, (11441), 2876 states have call predecessors, (11441), 2882 states have return successors, (11684), 11074 states have call predecessors, (11684), 11437 states have call successors, (11684) [2021-11-17 11:01:54,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47553 states to 47553 states and 65691 transitions. [2021-11-17 11:01:54,095 INFO L78 Accepts]: Start accepts. Automaton has 47553 states and 65691 transitions. Word has length 246 [2021-11-17 11:01:54,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:01:54,097 INFO L470 AbstractCegarLoop]: Abstraction has 47553 states and 65691 transitions. [2021-11-17 11:01:54,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 11:01:54,097 INFO L276 IsEmpty]: Start isEmpty. Operand 47553 states and 65691 transitions. [2021-11-17 11:01:54,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-11-17 11:01:54,104 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:01:54,105 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:01:54,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 11:01:54,105 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 11:01:54,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:01:54,105 INFO L85 PathProgramCache]: Analyzing trace with hash 190645638, now seen corresponding path program 1 times [2021-11-17 11:01:54,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:01:54,106 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262080030] [2021-11-17 11:01:54,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:01:54,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:01:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:01:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:54,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:01:54,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:54,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:01:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:01:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:01:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:54,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:01:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:01:54,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:01:54,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:01:54,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:54,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:01:54,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:54,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:01:54,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:01:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:54,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:01:54,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 11:01:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 11:01:54,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 11:01:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 11:01:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 11:01:54,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:01:54,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 11:01:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 11:01:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-17 11:01:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 11:01:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-11-17 11:01:54,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 11:01:54,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:01:54,440 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 922 trivial. 0 not checked. [2021-11-17 11:01:54,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:01:54,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262080030] [2021-11-17 11:01:54,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262080030] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:01:54,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:01:54,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:01:54,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315203482] [2021-11-17 11:01:54,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:01:54,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:01:54,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:01:54,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:01:54,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:01:54,443 INFO L87 Difference]: Start difference. First operand 47553 states and 65691 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 11:01:56,466 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:02:01,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:02:01,103 INFO L93 Difference]: Finished difference Result 48815 states and 67687 transitions. [2021-11-17 11:02:01,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 11:02:01,104 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 251 [2021-11-17 11:02:01,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:02:01,295 INFO L225 Difference]: With dead ends: 48815 [2021-11-17 11:02:01,295 INFO L226 Difference]: Without dead ends: 48813 [2021-11-17 11:02:01,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 11:02:01,332 INFO L933 BasicCegarLoop]: 3491 mSDtfsCounter, 3731 mSDsluCounter, 7119 mSDsCounter, 0 mSdLazyCounter, 2630 mSolverCounterSat, 1340 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4148 SdHoareTripleChecker+Valid, 10610 SdHoareTripleChecker+Invalid, 3971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1340 IncrementalHoareTripleChecker+Valid, 2630 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-17 11:02:01,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4148 Valid, 10610 Invalid, 3971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1340 Valid, 2630 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2021-11-17 11:02:01,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48813 states. [2021-11-17 11:02:03,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48813 to 47557. [2021-11-17 11:02:03,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47557 states, 33230 states have (on average 1.2810412278061991) internal successors, (42569), 33971 states have internal predecessors, (42569), 11441 states have call successors, (11441), 2877 states have call predecessors, (11441), 2883 states have return successors, (11684), 11074 states have call predecessors, (11684), 11437 states have call successors, (11684) [2021-11-17 11:02:03,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47557 states to 47557 states and 65694 transitions. [2021-11-17 11:02:03,494 INFO L78 Accepts]: Start accepts. Automaton has 47557 states and 65694 transitions. Word has length 251 [2021-11-17 11:02:03,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:02:03,495 INFO L470 AbstractCegarLoop]: Abstraction has 47557 states and 65694 transitions. [2021-11-17 11:02:03,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 11:02:03,495 INFO L276 IsEmpty]: Start isEmpty. Operand 47557 states and 65694 transitions. [2021-11-17 11:02:03,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-11-17 11:02:03,501 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:02:03,501 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:02:03,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 11:02:03,502 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 11:02:03,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:02:03,502 INFO L85 PathProgramCache]: Analyzing trace with hash 501085078, now seen corresponding path program 1 times [2021-11-17 11:02:03,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:02:03,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631983255] [2021-11-17 11:02:03,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:02:03,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:02:03,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:02:03,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:02:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:03,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:02:03,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:02:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:02:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:02:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:03,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:02:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:02:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:03,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:02:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:02:03,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:03,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:02:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:02:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:02:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 11:02:03,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 11:02:03,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 11:02:03,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 11:02:03,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 11:02:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 11:02:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 11:02:03,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-17 11:02:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-11-17 11:02:03,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:03,802 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-11-17 11:02:03,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:02:03,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631983255] [2021-11-17 11:02:03,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631983255] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:02:03,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:02:03,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:02:03,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616569305] [2021-11-17 11:02:03,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:02:03,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:02:03,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:02:03,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:02:03,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:02:03,805 INFO L87 Difference]: Start difference. First operand 47557 states and 65694 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-17 11:02:05,971 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:02:12,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:02:12,933 INFO L93 Difference]: Finished difference Result 113572 states and 157016 transitions. [2021-11-17 11:02:12,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 11:02:12,934 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 250 [2021-11-17 11:02:12,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:02:13,169 INFO L225 Difference]: With dead ends: 113572 [2021-11-17 11:02:13,170 INFO L226 Difference]: Without dead ends: 66301 [2021-11-17 11:02:13,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:02:13,286 INFO L933 BasicCegarLoop]: 5335 mSDtfsCounter, 3696 mSDsluCounter, 4900 mSDsCounter, 0 mSdLazyCounter, 2394 mSolverCounterSat, 1585 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4283 SdHoareTripleChecker+Valid, 10235 SdHoareTripleChecker+Invalid, 3980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1585 IncrementalHoareTripleChecker+Valid, 2394 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-11-17 11:02:13,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4283 Valid, 10235 Invalid, 3980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1585 Valid, 2394 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2021-11-17 11:02:13,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66301 states. [2021-11-17 11:02:16,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66301 to 64486. [2021-11-17 11:02:16,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64486 states, 45061 states have (on average 1.2782228534653026) internal successors, (57598), 46068 states have internal predecessors, (57598), 15418 states have call successors, (15418), 4006 states have call predecessors, (15418), 4004 states have return successors, (15697), 14922 states have call predecessors, (15697), 15414 states have call successors, (15697) [2021-11-17 11:02:16,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64486 states to 64486 states and 88713 transitions. [2021-11-17 11:02:16,614 INFO L78 Accepts]: Start accepts. Automaton has 64486 states and 88713 transitions. Word has length 250 [2021-11-17 11:02:16,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:02:16,615 INFO L470 AbstractCegarLoop]: Abstraction has 64486 states and 88713 transitions. [2021-11-17 11:02:16,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-17 11:02:16,616 INFO L276 IsEmpty]: Start isEmpty. Operand 64486 states and 88713 transitions. [2021-11-17 11:02:16,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2021-11-17 11:02:16,624 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:02:16,624 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:02:16,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 11:02:16,625 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 11:02:16,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:02:16,625 INFO L85 PathProgramCache]: Analyzing trace with hash 928629503, now seen corresponding path program 1 times [2021-11-17 11:02:16,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:02:16,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491393009] [2021-11-17 11:02:16,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:02:16,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:02:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:02:16,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:16,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:02:16,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:16,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:02:16,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:02:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:16,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:02:16,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:16,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:02:16,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:16,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:02:16,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:02:16,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:16,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:02:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:02:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:02:16,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:16,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:02:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:16,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:02:16,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 11:02:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 11:02:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 11:02:16,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 11:02:16,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 11:02:16,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:16,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 11:02:16,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 11:02:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-17 11:02:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 11:02:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-11-17 11:02:16,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 11:02:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:16,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 11:02:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:17,000 INFO L134 CoverageAnalysis]: Checked inductivity of 942 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 934 trivial. 0 not checked. [2021-11-17 11:02:17,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:02:17,001 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491393009] [2021-11-17 11:02:17,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491393009] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:02:17,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:02:17,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:02:17,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526789378] [2021-11-17 11:02:17,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:02:17,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:02:17,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:02:17,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:02:17,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:02:17,003 INFO L87 Difference]: Start difference. First operand 64486 states and 88713 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-17 11:02:22,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:02:22,888 INFO L93 Difference]: Finished difference Result 66256 states and 91503 transitions. [2021-11-17 11:02:22,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 11:02:22,889 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 256 [2021-11-17 11:02:22,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:02:23,363 INFO L225 Difference]: With dead ends: 66256 [2021-11-17 11:02:23,364 INFO L226 Difference]: Without dead ends: 66254 [2021-11-17 11:02:23,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 11:02:23,396 INFO L933 BasicCegarLoop]: 3492 mSDtfsCounter, 3731 mSDsluCounter, 7122 mSDsCounter, 0 mSdLazyCounter, 2631 mSolverCounterSat, 1339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4147 SdHoareTripleChecker+Valid, 10614 SdHoareTripleChecker+Invalid, 3970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1339 IncrementalHoareTripleChecker+Valid, 2631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-17 11:02:23,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4147 Valid, 10614 Invalid, 3970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1339 Valid, 2631 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-11-17 11:02:23,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66254 states. [2021-11-17 11:02:25,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66254 to 64490. [2021-11-17 11:02:26,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64490 states, 45064 states have (on average 1.2782043316172556) internal successors, (57601), 46071 states have internal predecessors, (57601), 15418 states have call successors, (15418), 4007 states have call predecessors, (15418), 4005 states have return successors, (15697), 14922 states have call predecessors, (15697), 15414 states have call successors, (15697) [2021-11-17 11:02:26,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64490 states to 64490 states and 88716 transitions. [2021-11-17 11:02:26,259 INFO L78 Accepts]: Start accepts. Automaton has 64490 states and 88716 transitions. Word has length 256 [2021-11-17 11:02:26,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:02:26,261 INFO L470 AbstractCegarLoop]: Abstraction has 64490 states and 88716 transitions. [2021-11-17 11:02:26,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-17 11:02:26,261 INFO L276 IsEmpty]: Start isEmpty. Operand 64490 states and 88716 transitions. [2021-11-17 11:02:26,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2021-11-17 11:02:26,274 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:02:26,274 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:02:26,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-17 11:02:26,275 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 11:02:26,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:02:26,275 INFO L85 PathProgramCache]: Analyzing trace with hash 2070061286, now seen corresponding path program 1 times [2021-11-17 11:02:26,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:02:26,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084466362] [2021-11-17 11:02:26,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:02:26,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:02:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:02:26,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:02:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:02:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:02:26,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:26,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:02:26,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:02:26,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:02:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:26,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:02:26,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:26,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:02:26,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:02:26,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:26,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:02:26,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:02:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:02:26,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 11:02:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 11:02:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 11:02:26,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 11:02:26,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 11:02:26,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:02:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 11:02:26,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 11:02:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-17 11:02:26,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 11:02:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-11-17 11:02:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 11:02:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 11:02:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-17 11:02:26,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:02:26,578 INFO L134 CoverageAnalysis]: Checked inductivity of 960 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 950 trivial. 0 not checked. [2021-11-17 11:02:26,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:02:26,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084466362] [2021-11-17 11:02:26,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084466362] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:02:26,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:02:26,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:02:26,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709201544] [2021-11-17 11:02:26,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:02:26,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:02:26,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:02:26,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:02:26,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:02:26,581 INFO L87 Difference]: Start difference. First operand 64490 states and 88716 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-17 11:02:28,604 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:02:34,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:02:34,010 INFO L93 Difference]: Finished difference Result 66260 states and 91506 transitions. [2021-11-17 11:02:34,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 11:02:34,011 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 261 [2021-11-17 11:02:34,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:02:34,359 INFO L225 Difference]: With dead ends: 66260 [2021-11-17 11:02:34,359 INFO L226 Difference]: Without dead ends: 66258 [2021-11-17 11:02:34,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 11:02:34,388 INFO L933 BasicCegarLoop]: 3492 mSDtfsCounter, 3731 mSDsluCounter, 7122 mSDsCounter, 0 mSdLazyCounter, 2630 mSolverCounterSat, 1338 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4147 SdHoareTripleChecker+Valid, 10614 SdHoareTripleChecker+Invalid, 3969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1338 IncrementalHoareTripleChecker+Valid, 2630 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-11-17 11:02:34,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4147 Valid, 10614 Invalid, 3969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1338 Valid, 2630 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2021-11-17 11:02:34,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66258 states.