./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d842a62f-cde3-401a-bde5-e7885f963022/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d842a62f-cde3-401a-bde5-e7885f963022/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d842a62f-cde3-401a-bde5-e7885f963022/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d842a62f-cde3-401a-bde5-e7885f963022/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d842a62f-cde3-401a-bde5-e7885f963022/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d842a62f-cde3-401a-bde5-e7885f963022/bin/uautomizer-YU5uOKAj3y --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 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:15:23,318 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:15:23,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:15:23,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:15:23,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:15:23,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:15:23,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:15:23,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:15:23,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:15:23,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:15:23,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:15:23,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:15:23,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:15:23,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:15:23,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:15:23,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:15:23,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:15:23,395 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:15:23,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:15:23,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:15:23,406 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:15:23,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:15:23,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:15:23,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:15:23,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:15:23,418 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:15:23,418 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:15:23,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:15:23,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:15:23,422 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:15:23,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:15:23,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:15:23,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:15:23,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:15:23,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:15:23,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:15:23,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:15:23,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:15:23,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:15:23,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:15:23,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:15:23,436 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d842a62f-cde3-401a-bde5-e7885f963022/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-13 18:15:23,469 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:15:23,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:15:23,470 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:15:23,471 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:15:23,472 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:15:23,472 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:15:23,473 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:15:23,474 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:15:23,474 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:15:23,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:15:23,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:15:23,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:15:23,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:15:23,477 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:15:23,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:15:23,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:15:23,477 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:15:23,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:15:23,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:15:23,478 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:15:23,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:15:23,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:15:23,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:15:23,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:15:23,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:15:23,480 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:15:23,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:15:23,481 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:15:23,481 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:15:23,481 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:15:23,482 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:15:23,482 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d842a62f-cde3-401a-bde5-e7885f963022/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d842a62f-cde3-401a-bde5-e7885f963022/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 [2021-11-13 18:15:23,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:15:23,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:15:23,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:15:23,809 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:15:23,810 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:15:23,812 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d842a62f-cde3-401a-bde5-e7885f963022/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-11-13 18:15:23,910 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d842a62f-cde3-401a-bde5-e7885f963022/bin/uautomizer-YU5uOKAj3y/data/23f23f482/6d7ad02297dd46e9b996a6f51cbd15b6/FLAG6b6369eb2 [2021-11-13 18:15:25,092 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:15:25,093 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d842a62f-cde3-401a-bde5-e7885f963022/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-11-13 18:15:25,166 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d842a62f-cde3-401a-bde5-e7885f963022/bin/uautomizer-YU5uOKAj3y/data/23f23f482/6d7ad02297dd46e9b996a6f51cbd15b6/FLAG6b6369eb2 [2021-11-13 18:15:25,343 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d842a62f-cde3-401a-bde5-e7885f963022/bin/uautomizer-YU5uOKAj3y/data/23f23f482/6d7ad02297dd46e9b996a6f51cbd15b6 [2021-11-13 18:15:25,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:15:25,347 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:15:25,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:15:25,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:15:25,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:15:25,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:15:25" (1/1) ... [2021-11-13 18:15:25,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27146f74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:15:25, skipping insertion in model container [2021-11-13 18:15:25,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:15:25" (1/1) ... [2021-11-13 18:15:25,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:15:25,573 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:15:29,434 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d842a62f-cde3-401a-bde5-e7885f963022/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2021-11-13 18:15:29,447 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d842a62f-cde3-401a-bde5-e7885f963022/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2021-11-13 18:15:29,448 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d842a62f-cde3-401a-bde5-e7885f963022/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2021-11-13 18:15:29,449 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d842a62f-cde3-401a-bde5-e7885f963022/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2021-11-13 18:15:29,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:15:29,555 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:15:30,097 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d842a62f-cde3-401a-bde5-e7885f963022/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2021-11-13 18:15:30,098 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d842a62f-cde3-401a-bde5-e7885f963022/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2021-11-13 18:15:30,099 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d842a62f-cde3-401a-bde5-e7885f963022/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2021-11-13 18:15:30,099 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d842a62f-cde3-401a-bde5-e7885f963022/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2021-11-13 18:15:30,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:15:30,348 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:15:30,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:15:30 WrapperNode [2021-11-13 18:15:30,349 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:15:30,351 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:15:30,351 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:15:30,351 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:15:30,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:15:30" (1/1) ... [2021-11-13 18:15:30,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:15:30" (1/1) ... [2021-11-13 18:15:30,796 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:15:30,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:15:30,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:15:30,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:15:30,809 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:15:30" (1/1) ... [2021-11-13 18:15:30,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:15:30" (1/1) ... [2021-11-13 18:15:30,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:15:30" (1/1) ... [2021-11-13 18:15:30,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:15:30" (1/1) ... [2021-11-13 18:15:31,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:15:30" (1/1) ... [2021-11-13 18:15:31,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:15:30" (1/1) ... [2021-11-13 18:15:31,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:15:30" (1/1) ... [2021-11-13 18:15:31,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:15:31,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:15:31,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:15:31,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:15:31,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:15:30" (1/1) ... [2021-11-13 18:15:31,295 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:15:31,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d842a62f-cde3-401a-bde5-e7885f963022/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:15:31,323 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d842a62f-cde3-401a-bde5-e7885f963022/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:15:31,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d842a62f-cde3-401a-bde5-e7885f963022/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:15:31,382 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-13 18:15:31,383 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-13 18:15:31,383 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-13 18:15:31,383 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-13 18:15:31,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 18:15:31,384 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 18:15:31,384 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-13 18:15:31,384 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-13 18:15:31,384 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_count [2021-11-13 18:15:31,385 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_count [2021-11-13 18:15:31,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 18:15:31,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 18:15:31,385 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_status [2021-11-13 18:15:31,385 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_status [2021-11-13 18:15:31,386 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-13 18:15:31,386 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-13 18:15:31,386 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-11-13 18:15:31,386 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-11-13 18:15:31,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-13 18:15:31,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-13 18:15:31,387 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_ring_debug [2021-11-13 18:15:31,387 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_ring_debug [2021-11-13 18:15:31,387 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-13 18:15:31,388 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-13 18:15:31,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_65 [2021-11-13 18:15:31,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_65 [2021-11-13 18:15:31,388 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-13 18:15:31,389 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-13 18:15:31,389 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_close [2021-11-13 18:15:31,389 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_close [2021-11-13 18:15:31,389 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_resume [2021-11-13 18:15:31,389 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_resume [2021-11-13 18:15:31,390 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-13 18:15:31,390 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-13 18:15:31,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-13 18:15:31,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-13 18:15:31,390 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2021-11-13 18:15:31,391 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2021-11-13 18:15:31,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-13 18:15:31,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-13 18:15:31,391 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_free_ring [2021-11-13 18:15:31,392 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_free_ring [2021-11-13 18:15:31,392 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-13 18:15:31,392 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-13 18:15:31,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:15:31,392 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-11-13 18:15:31,393 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-11-13 18:15:31,393 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-13 18:15:31,393 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-13 18:15:31,393 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-13 18:15:31,394 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-13 18:15:31,394 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_tx_timeout [2021-11-13 18:15:31,394 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_tx_timeout [2021-11-13 18:15:31,394 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-13 18:15:31,394 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-13 18:15:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-13 18:15:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_destroy_hwif [2021-11-13 18:15:31,395 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_destroy_hwif [2021-11-13 18:15:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-13 18:15:31,396 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-13 18:15:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-13 18:15:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-13 18:15:31,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-13 18:15:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_stop_hw [2021-11-13 18:15:31,397 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_stop_hw [2021-11-13 18:15:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 18:15:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-13 18:15:31,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-13 18:15:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_remove [2021-11-13 18:15:31,398 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_remove [2021-11-13 18:15:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 18:15:31,398 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 18:15:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-13 18:15:31,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-13 18:15:31,399 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2021-11-13 18:15:31,399 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2021-11-13 18:15:31,399 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_clear_regs [2021-11-13 18:15:31,400 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_clear_regs [2021-11-13 18:15:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-13 18:15:31,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-13 18:15:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-13 18:15:31,400 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-13 18:15:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_start_hw [2021-11-13 18:15:31,401 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_start_hw [2021-11-13 18:15:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-13 18:15:31,401 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-13 18:15:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-13 18:15:31,402 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-13 18:15:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure rd_activate [2021-11-13 18:15:31,402 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_activate [2021-11-13 18:15:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure rd_is_active [2021-11-13 18:15:31,403 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_is_active [2021-11-13 18:15:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-13 18:15:31,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-13 18:15:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 18:15:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-13 18:15:31,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-13 18:15:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_count [2021-11-13 18:15:31,404 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_count [2021-11-13 18:15:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-13 18:15:31,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-13 18:15:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 18:15:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 18:15:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-13 18:15:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-13 18:15:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 18:15:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-13 18:15:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_open [2021-11-13 18:15:31,406 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_open [2021-11-13 18:15:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 18:15:31,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 18:15:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vlsi_mod_exit_11_2 [2021-11-13 18:15:31,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vlsi_mod_exit_11_2 [2021-11-13 18:15:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-13 18:15:31,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-13 18:15:31,408 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-13 18:15:31,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-13 18:15:31,408 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-13 18:15:31,408 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-13 18:15:31,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-13 18:15:31,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-13 18:15:31,409 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_reg_debug [2021-11-13 18:15:31,409 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_reg_debug [2021-11-13 18:15:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_set_baud [2021-11-13 18:15:31,413 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_set_baud [2021-11-13 18:15:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:15:31,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:15:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 18:15:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 18:15:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 18:15:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 18:15:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-13 18:15:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-13 18:15:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-11-13 18:15:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-11-13 18:15:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2021-11-13 18:15:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2021-11-13 18:15:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_status [2021-11-13 18:15:31,416 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_status [2021-11-13 18:15:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-13 18:15:31,416 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-13 18:15:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-13 18:15:31,416 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-13 18:15:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 18:15:31,417 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 18:15:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-13 18:15:31,417 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-13 18:15:31,418 INFO L130 BoogieDeclarations]: Found specification of procedure ring_get [2021-11-13 18:15:31,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_get [2021-11-13 18:15:31,418 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-13 18:15:31,418 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-13 18:15:31,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:15:31,418 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-13 18:15:31,419 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-13 18:15:31,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 18:15:31,419 INFO L130 BoogieDeclarations]: Found specification of procedure ring_last [2021-11-13 18:15:31,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_last [2021-11-13 18:15:31,419 INFO L130 BoogieDeclarations]: Found specification of procedure ring_put [2021-11-13 18:15:31,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_put [2021-11-13 18:15:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 18:15:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-13 18:15:31,420 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-13 18:15:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2021-11-13 18:15:31,420 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2021-11-13 18:15:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-11-13 18:15:31,420 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-11-13 18:15:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-13 18:15:31,421 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-13 18:15:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 18:15:31,421 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 18:15:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-13 18:15:31,421 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-13 18:15:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-13 18:15:31,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-13 18:15:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-13 18:15:31,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-13 18:15:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_addr_status [2021-11-13 18:15:31,422 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_addr_status [2021-11-13 18:15:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_addr [2021-11-13 18:15:31,423 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_addr [2021-11-13 18:15:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-13 18:15:31,423 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-13 18:15:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-13 18:15:31,423 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-13 18:15:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-13 18:15:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-13 18:15:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-13 18:15:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-13 18:15:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:15:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-13 18:15:31,426 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-13 18:15:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 18:15:31,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 18:15:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure irlap_close [2021-11-13 18:15:31,427 INFO L138 BoogieDeclarations]: Found implementation of procedure irlap_close [2021-11-13 18:15:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-13 18:15:31,427 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-13 18:15:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-13 18:15:31,428 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-13 18:15:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_tx [2021-11-13 18:15:31,428 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_tx [2021-11-13 18:15:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-13 18:15:31,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-13 18:15:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_alloc_ring [2021-11-13 18:15:31,428 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_alloc_ring [2021-11-13 18:15:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_vlsi_irda_dev [2021-11-13 18:15:31,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_vlsi_irda_dev [2021-11-13 18:15:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_fill_rx [2021-11-13 18:15:31,429 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_fill_rx [2021-11-13 18:15:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-13 18:15:31,429 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-13 18:15:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_rx [2021-11-13 18:15:31,430 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_rx [2021-11-13 18:15:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-13 18:15:31,430 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-13 18:15:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:15:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-11-13 18:15:31,430 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-11-13 18:15:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-13 18:15:31,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-13 18:15:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure ring_first [2021-11-13 18:15:31,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_first [2021-11-13 18:15:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-11-13 18:15:31,431 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-11-13 18:15:33,104 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 18:16:26,426 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-13 18:16:26,563 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:16:26,563 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 18:16:26,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:16:26 BoogieIcfgContainer [2021-11-13 18:16:26,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:16:26,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:16:26,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:16:26,589 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:16:26,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:15:25" (1/3) ... [2021-11-13 18:16:26,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d738e48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:16:26, skipping insertion in model container [2021-11-13 18:16:26,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:15:30" (2/3) ... [2021-11-13 18:16:26,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d738e48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:16:26, skipping insertion in model container [2021-11-13 18:16:26,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:16:26" (3/3) ... [2021-11-13 18:16:26,592 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-11-13 18:16:26,599 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:16:26,599 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-13 18:16:26,680 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:16:26,688 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 [2021-11-13 18:16:26,688 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-13 18:16:26,770 INFO L276 IsEmpty]: Start isEmpty. Operand has 1886 states, 1268 states have (on average 1.2854889589905363) internal successors, (1630), 1294 states have internal predecessors, (1630), 512 states have call successors, (512), 104 states have call predecessors, (512), 103 states have return successors, (505), 502 states have call predecessors, (505), 505 states have call successors, (505) [2021-11-13 18:16:26,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-13 18:16:26,813 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:16:26,816 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:16:26,818 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)] === [2021-11-13 18:16:26,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:16:26,827 INFO L85 PathProgramCache]: Analyzing trace with hash -2147203978, now seen corresponding path program 1 times [2021-11-13 18:16:26,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:16:26,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147749938] [2021-11-13 18:16:26,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:16:26,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:16:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:28,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:16:28,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:28,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:28,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:16:28,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:28,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:28,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:16:28,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:28,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:28,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:28,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:16:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:28,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:28,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:16:28,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:28,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:28,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:16:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:28,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:28,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:16:28,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:28,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:28,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:28,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:16:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:28,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:28,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:28,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:16:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:28,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:28,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:28,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:16:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:28,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:28,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:28,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:16:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:28,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:28,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:28,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:16:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:28,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-13 18:16:28,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:28,723 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-13 18:16:28,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:16:28,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147749938] [2021-11-13 18:16:28,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147749938] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:16:28,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:16:28,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:16:28,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816653202] [2021-11-13 18:16:28,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:16:28,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:16:28,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:16:28,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:16:28,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:16:28,796 INFO L87 Difference]: Start difference. First operand has 1886 states, 1268 states have (on average 1.2854889589905363) internal successors, (1630), 1294 states have internal predecessors, (1630), 512 states have call successors, (512), 104 states have call predecessors, (512), 103 states have return successors, (505), 502 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-13 18:16:30,942 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:16:33,113 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:16:40,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:16:40,965 INFO L93 Difference]: Finished difference Result 5703 states and 8187 transitions. [2021-11-13 18:16:40,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:16:40,969 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 149 [2021-11-13 18:16:40,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:16:41,050 INFO L225 Difference]: With dead ends: 5703 [2021-11-13 18:16:41,050 INFO L226 Difference]: Without dead ends: 3833 [2021-11-13 18:16:41,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:16:41,088 INFO L933 BasicCegarLoop]: 2824 mSDtfsCounter, 3389 mSDsluCounter, 2887 mSDsCounter, 0 mSdLazyCounter, 1781 mSolverCounterSat, 1543 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9995.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3851 SdHoareTripleChecker+Valid, 5711 SdHoareTripleChecker+Invalid, 3326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 114.28ms SdHoareTripleChecker+Time, 1543 IncrementalHoareTripleChecker+Valid, 1781 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11400.95ms IncrementalHoareTripleChecker+Time [2021-11-13 18:16:41,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3851 Valid, 5711 Invalid, 3326 Unknown, 0 Unchecked, 114.28ms Time], IncrementalHoareTripleChecker [1543 Valid, 1781 Invalid, 2 Unknown, 0 Unchecked, 11400.95ms Time] [2021-11-13 18:16:41,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3833 states. [2021-11-13 18:16:41,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3833 to 3601. [2021-11-13 18:16:41,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3601 states, 2435 states have (on average 1.2739219712525667) internal successors, (3102), 2484 states have internal predecessors, (3102), 961 states have call successors, (961), 203 states have call predecessors, (961), 202 states have return successors, (957), 951 states have call predecessors, (957), 957 states have call successors, (957) [2021-11-13 18:16:41,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3601 states to 3601 states and 5020 transitions. [2021-11-13 18:16:41,578 INFO L78 Accepts]: Start accepts. Automaton has 3601 states and 5020 transitions. Word has length 149 [2021-11-13 18:16:41,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:16:41,580 INFO L470 AbstractCegarLoop]: Abstraction has 3601 states and 5020 transitions. [2021-11-13 18:16:41,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-13 18:16:41,581 INFO L276 IsEmpty]: Start isEmpty. Operand 3601 states and 5020 transitions. [2021-11-13 18:16:41,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-13 18:16:41,590 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:16:41,590 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:16:41,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:16:41,591 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)] === [2021-11-13 18:16:41,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:16:41,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1243014584, now seen corresponding path program 1 times [2021-11-13 18:16:41,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:16:41,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213634044] [2021-11-13 18:16:41,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:16:41,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:16:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:42,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:16:42,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:42,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:42,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:16:42,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:42,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:42,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:42,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:16:42,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:42,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:42,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:42,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:16:42,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:42,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:42,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:42,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:16:42,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:42,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:42,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:42,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:16:42,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:42,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:42,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:42,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:16:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:42,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:42,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:16:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:42,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:42,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:16:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:42,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:42,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:16:42,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:42,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:42,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:16:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:42,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:42,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:16:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:42,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:16:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:42,520 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-13 18:16:42,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:16:42,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213634044] [2021-11-13 18:16:42,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213634044] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:16:42,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:16:42,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:16:42,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992036411] [2021-11-13 18:16:42,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:16:42,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:16:42,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:16:42,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:16:42,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:16:42,531 INFO L87 Difference]: Start difference. First operand 3601 states and 5020 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-13 18:16:44,637 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:16:46,969 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:16:54,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:16:54,452 INFO L93 Difference]: Finished difference Result 10885 states and 15243 transitions. [2021-11-13 18:16:54,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:16:54,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 150 [2021-11-13 18:16:54,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:16:54,559 INFO L225 Difference]: With dead ends: 10885 [2021-11-13 18:16:54,560 INFO L226 Difference]: Without dead ends: 7311 [2021-11-13 18:16:54,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:16:54,587 INFO L933 BasicCegarLoop]: 3010 mSDtfsCounter, 3128 mSDsluCounter, 2948 mSDsCounter, 0 mSdLazyCounter, 1749 mSolverCounterSat, 1510 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9807.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3558 SdHoareTripleChecker+Valid, 5958 SdHoareTripleChecker+Invalid, 3261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 72.01ms SdHoareTripleChecker+Time, 1510 IncrementalHoareTripleChecker+Valid, 1749 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11176.04ms IncrementalHoareTripleChecker+Time [2021-11-13 18:16:54,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3558 Valid, 5958 Invalid, 3261 Unknown, 0 Unchecked, 72.01ms Time], IncrementalHoareTripleChecker [1510 Valid, 1749 Invalid, 2 Unknown, 0 Unchecked, 11176.04ms Time] [2021-11-13 18:16:54,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7311 states. [2021-11-13 18:16:55,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7311 to 6837. [2021-11-13 18:16:55,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6837 states, 4636 states have (on average 1.2702761000862812) internal successors, (5889), 4736 states have internal predecessors, (5889), 1797 states have call successors, (1797), 402 states have call predecessors, (1797), 401 states have return successors, (1813), 1770 states have call predecessors, (1813), 1793 states have call successors, (1813) [2021-11-13 18:16:55,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6837 states to 6837 states and 9499 transitions. [2021-11-13 18:16:55,138 INFO L78 Accepts]: Start accepts. Automaton has 6837 states and 9499 transitions. Word has length 150 [2021-11-13 18:16:55,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:16:55,140 INFO L470 AbstractCegarLoop]: Abstraction has 6837 states and 9499 transitions. [2021-11-13 18:16:55,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-13 18:16:55,141 INFO L276 IsEmpty]: Start isEmpty. Operand 6837 states and 9499 transitions. [2021-11-13 18:16:55,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-13 18:16:55,147 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:16:55,148 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:16:55,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:16:55,153 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)] === [2021-11-13 18:16:55,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:16:55,154 INFO L85 PathProgramCache]: Analyzing trace with hash 953371685, now seen corresponding path program 1 times [2021-11-13 18:16:55,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:16:55,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118861791] [2021-11-13 18:16:55,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:16:55,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:16:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:55,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:16:55,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:55,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:55,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:16:55,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:55,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:55,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:16:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:55,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:55,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:55,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:16:55,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:55,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:55,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:55,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:16:55,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:55,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:55,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:55,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:16:55,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:55,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:55,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:55,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:16:56,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:56,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:56,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:56,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:16:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:56,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:56,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:16:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:56,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:56,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:16:56,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:56,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:56,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:16:56,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:56,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:16:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:56,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:16:56,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:56,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:16:56,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:56,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-13 18:16:56,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:56,196 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-13 18:16:56,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:16:56,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118861791] [2021-11-13 18:16:56,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118861791] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:16:56,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:16:56,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:16:56,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893805944] [2021-11-13 18:16:56,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:16:56,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:16:56,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:16:56,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:16:56,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:16:56,201 INFO L87 Difference]: Start difference. First operand 6837 states and 9499 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-13 18:16:58,310 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:17:00,530 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:17:17,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:17:17,522 INFO L93 Difference]: Finished difference Result 27251 states and 37921 transitions. [2021-11-13 18:17:17,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:17:17,523 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 158 [2021-11-13 18:17:17,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:17:17,768 INFO L225 Difference]: With dead ends: 27251 [2021-11-13 18:17:17,768 INFO L226 Difference]: Without dead ends: 20441 [2021-11-13 18:17:17,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:17:17,829 INFO L933 BasicCegarLoop]: 3023 mSDtfsCounter, 9231 mSDsluCounter, 4952 mSDsCounter, 0 mSdLazyCounter, 5464 mSolverCounterSat, 4650 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17695.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10098 SdHoareTripleChecker+Valid, 7975 SdHoareTripleChecker+Invalid, 10116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 116.78ms SdHoareTripleChecker+Time, 4650 IncrementalHoareTripleChecker+Valid, 5464 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20047.32ms IncrementalHoareTripleChecker+Time [2021-11-13 18:17:17,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10098 Valid, 7975 Invalid, 10116 Unknown, 0 Unchecked, 116.78ms Time], IncrementalHoareTripleChecker [4650 Valid, 5464 Invalid, 2 Unknown, 0 Unchecked, 20047.32ms Time] [2021-11-13 18:17:17,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20441 states. [2021-11-13 18:17:18,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20441 to 19021. [2021-11-13 18:17:19,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19021 states, 12916 states have (on average 1.2623877361412201) internal successors, (16305), 13168 states have internal predecessors, (16305), 4921 states have call successors, (4921), 1190 states have call predecessors, (4921), 1181 states have return successors, (4977), 4826 states have call predecessors, (4977), 4917 states have call successors, (4977) [2021-11-13 18:17:19,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19021 states to 19021 states and 26203 transitions. [2021-11-13 18:17:19,156 INFO L78 Accepts]: Start accepts. Automaton has 19021 states and 26203 transitions. Word has length 158 [2021-11-13 18:17:19,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:17:19,158 INFO L470 AbstractCegarLoop]: Abstraction has 19021 states and 26203 transitions. [2021-11-13 18:17:19,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-13 18:17:19,159 INFO L276 IsEmpty]: Start isEmpty. Operand 19021 states and 26203 transitions. [2021-11-13 18:17:19,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-13 18:17:19,169 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:17:19,169 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 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] [2021-11-13 18:17:19,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 18:17:19,170 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)] === [2021-11-13 18:17:19,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:17:19,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1404264420, now seen corresponding path program 1 times [2021-11-13 18:17:19,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:17:19,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173536968] [2021-11-13 18:17:19,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:17:19,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:17:19,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:19,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:17:19,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:19,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:19,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:17:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:19,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:19,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:17:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:19,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:19,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:19,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:17:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:19,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:19,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:19,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:17:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:19,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:19,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:19,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:17:19,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:19,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:19,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:17:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:19,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:19,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:17:19,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:19,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:19,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:19,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:17:19,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:19,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:19,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:20,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:17:20,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:20,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:20,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:20,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:17:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:20,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:20,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:20,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:17:20,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:20,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-13 18:17:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:20,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:17:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:20,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-13 18:17:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:20,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-13 18:17:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:20,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:20,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-13 18:17:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:20,152 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2021-11-13 18:17:20,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:17:20,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173536968] [2021-11-13 18:17:20,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173536968] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:17:20,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:17:20,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:17:20,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826709794] [2021-11-13 18:17:20,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:17:20,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:17:20,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:17:20,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:17:20,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:17:20,156 INFO L87 Difference]: Start difference. First operand 19021 states and 26203 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-13 18:17:22,263 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:17:24,537 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:17:30,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:17:30,268 INFO L93 Difference]: Finished difference Result 34464 states and 47594 transitions. [2021-11-13 18:17:30,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:17:30,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 195 [2021-11-13 18:17:30,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:17:30,377 INFO L225 Difference]: With dead ends: 34464 [2021-11-13 18:17:30,378 INFO L226 Difference]: Without dead ends: 15470 [2021-11-13 18:17:30,479 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 [2021-11-13 18:17:30,480 INFO L933 BasicCegarLoop]: 3191 mSDtfsCounter, 2251 mSDsluCounter, 3084 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 1135 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8459.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2600 SdHoareTripleChecker+Valid, 6275 SdHoareTripleChecker+Invalid, 2795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.64ms SdHoareTripleChecker+Time, 1135 IncrementalHoareTripleChecker+Valid, 1658 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9470.97ms IncrementalHoareTripleChecker+Time [2021-11-13 18:17:30,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2600 Valid, 6275 Invalid, 2795 Unknown, 0 Unchecked, 35.64ms Time], IncrementalHoareTripleChecker [1135 Valid, 1658 Invalid, 2 Unknown, 0 Unchecked, 9470.97ms Time] [2021-11-13 18:17:30,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15470 states. [2021-11-13 18:17:31,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15470 to 14612. [2021-11-13 18:17:31,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14612 states, 9983 states have (on average 1.266052288891115) internal successors, (12639), 10193 states have internal predecessors, (12639), 3658 states have call successors, (3658), 979 states have call predecessors, (3658), 968 states have return successors, (3684), 3568 states have call predecessors, (3684), 3654 states have call successors, (3684) [2021-11-13 18:17:31,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14612 states to 14612 states and 19981 transitions. [2021-11-13 18:17:31,781 INFO L78 Accepts]: Start accepts. Automaton has 14612 states and 19981 transitions. Word has length 195 [2021-11-13 18:17:31,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:17:31,782 INFO L470 AbstractCegarLoop]: Abstraction has 14612 states and 19981 transitions. [2021-11-13 18:17:31,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-13 18:17:31,783 INFO L276 IsEmpty]: Start isEmpty. Operand 14612 states and 19981 transitions. [2021-11-13 18:17:31,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-13 18:17:31,789 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:17:31,789 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 3, 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] [2021-11-13 18:17:31,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 18:17:31,790 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)] === [2021-11-13 18:17:31,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:17:31,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1257416363, now seen corresponding path program 1 times [2021-11-13 18:17:31,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:17:31,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938393588] [2021-11-13 18:17:31,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:17:31,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:17:31,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:17:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:32,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:17:32,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:32,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:17:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:32,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:17:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:17:32,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:32,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:17:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:32,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:17:32,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:17:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:17:32,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:32,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:17:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:17:32,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:17:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:17:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:17:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:17:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:17:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:17:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-13 18:17:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:32,558 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2021-11-13 18:17:32,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:17:32,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938393588] [2021-11-13 18:17:32,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938393588] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:17:32,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:17:32,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:17:32,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406382569] [2021-11-13 18:17:32,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:17:32,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:17:32,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:17:32,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:17:32,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:17:32,562 INFO L87 Difference]: Start difference. First operand 14612 states and 19981 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-13 18:17:34,676 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:17:36,853 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:17:43,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:17:43,598 INFO L93 Difference]: Finished difference Result 43764 states and 60238 transitions. [2021-11-13 18:17:43,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:17:43,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 198 [2021-11-13 18:17:43,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:17:43,799 INFO L225 Difference]: With dead ends: 43764 [2021-11-13 18:17:43,799 INFO L226 Difference]: Without dead ends: 29339 [2021-11-13 18:17:43,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:17:43,865 INFO L933 BasicCegarLoop]: 3053 mSDtfsCounter, 3280 mSDsluCounter, 3127 mSDsCounter, 0 mSdLazyCounter, 1774 mSolverCounterSat, 1479 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8895.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3732 SdHoareTripleChecker+Valid, 6180 SdHoareTripleChecker+Invalid, 3255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.96ms SdHoareTripleChecker+Time, 1479 IncrementalHoareTripleChecker+Valid, 1774 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10200.67ms IncrementalHoareTripleChecker+Time [2021-11-13 18:17:43,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3732 Valid, 6180 Invalid, 3255 Unknown, 0 Unchecked, 41.96ms Time], IncrementalHoareTripleChecker [1479 Valid, 1774 Invalid, 2 Unknown, 0 Unchecked, 10200.67ms Time] [2021-11-13 18:17:43,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29339 states. [2021-11-13 18:17:45,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29339 to 27715. [2021-11-13 18:17:45,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27715 states, 18940 states have (on average 1.2647835269271384) internal successors, (23955), 19298 states have internal predecessors, (23955), 6938 states have call successors, (6938), 1849 states have call predecessors, (6938), 1834 states have return successors, (6994), 6807 states have call predecessors, (6994), 6934 states have call successors, (6994) [2021-11-13 18:17:45,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27715 states to 27715 states and 37887 transitions. [2021-11-13 18:17:45,723 INFO L78 Accepts]: Start accepts. Automaton has 27715 states and 37887 transitions. Word has length 198 [2021-11-13 18:17:45,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:17:45,724 INFO L470 AbstractCegarLoop]: Abstraction has 27715 states and 37887 transitions. [2021-11-13 18:17:45,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-13 18:17:45,725 INFO L276 IsEmpty]: Start isEmpty. Operand 27715 states and 37887 transitions. [2021-11-13 18:17:45,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-13 18:17:45,730 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:17:45,730 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 3, 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] [2021-11-13 18:17:45,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 18:17:45,731 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)] === [2021-11-13 18:17:45,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:17:45,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1116867753, now seen corresponding path program 1 times [2021-11-13 18:17:45,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:17:45,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501701693] [2021-11-13 18:17:45,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:17:45,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:17:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:17:46,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:17:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:46,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:17:46,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:17:46,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:17:46,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:17:46,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:17:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:46,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:17:46,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:17:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:17:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:46,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:17:46,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:46,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:17:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:17:46,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:17:46,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:17:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:46,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:17:46,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:17:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-13 18:17:46,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:46,934 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2021-11-13 18:17:46,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:17:46,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501701693] [2021-11-13 18:17:46,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501701693] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:17:46,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:17:46,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:17:46,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313901998] [2021-11-13 18:17:46,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:17:46,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:17:46,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:17:46,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:17:46,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:17:46,938 INFO L87 Difference]: Start difference. First operand 27715 states and 37887 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-13 18:17:49,046 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:17:55,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:17:55,241 INFO L93 Difference]: Finished difference Result 29341 states and 40452 transitions. [2021-11-13 18:17:55,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:17:55,242 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 198 [2021-11-13 18:17:55,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:17:55,462 INFO L225 Difference]: With dead ends: 29341 [2021-11-13 18:17:55,462 INFO L226 Difference]: Without dead ends: 29339 [2021-11-13 18:17:55,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:17:55,487 INFO L933 BasicCegarLoop]: 2443 mSDtfsCounter, 2769 mSDsluCounter, 4844 mSDsCounter, 0 mSdLazyCounter, 2001 mSolverCounterSat, 1096 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6329.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3056 SdHoareTripleChecker+Valid, 7287 SdHoareTripleChecker+Invalid, 3098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.26ms SdHoareTripleChecker+Time, 1096 IncrementalHoareTripleChecker+Valid, 2001 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6958.07ms IncrementalHoareTripleChecker+Time [2021-11-13 18:17:55,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3056 Valid, 7287 Invalid, 3098 Unknown, 0 Unchecked, 46.26ms Time], IncrementalHoareTripleChecker [1096 Valid, 2001 Invalid, 1 Unknown, 0 Unchecked, 6958.07ms Time] [2021-11-13 18:17:55,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29339 states. [2021-11-13 18:17:57,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29339 to 27719. [2021-11-13 18:17:57,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27719 states, 18943 states have (on average 1.2647415932006545) internal successors, (23958), 19301 states have internal predecessors, (23958), 6938 states have call successors, (6938), 1850 states have call predecessors, (6938), 1835 states have return successors, (6994), 6807 states have call predecessors, (6994), 6934 states have call successors, (6994) [2021-11-13 18:17:57,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27719 states to 27719 states and 37890 transitions. [2021-11-13 18:17:57,313 INFO L78 Accepts]: Start accepts. Automaton has 27719 states and 37890 transitions. Word has length 198 [2021-11-13 18:17:57,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:17:57,315 INFO L470 AbstractCegarLoop]: Abstraction has 27719 states and 37890 transitions. [2021-11-13 18:17:57,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-13 18:17:57,316 INFO L276 IsEmpty]: Start isEmpty. Operand 27719 states and 37890 transitions. [2021-11-13 18:17:57,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-13 18:17:57,321 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:17:57,322 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 3, 3, 3, 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] [2021-11-13 18:17:57,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 18:17:57,323 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)] === [2021-11-13 18:17:57,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:17:57,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1422051122, now seen corresponding path program 1 times [2021-11-13 18:17:57,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:17:57,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158628346] [2021-11-13 18:17:57,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:17:57,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:17:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:57,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:17:57,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:57,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:57,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:17:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:57,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:57,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:17:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:57,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:58,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:17:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:58,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:58,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:17:58,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:58,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:58,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:58,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:17:58,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:58,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:58,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:58,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:17:58,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:58,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:58,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:17:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:58,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:58,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:58,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:17:58,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:58,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:58,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:17:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:58,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:58,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:58,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:17:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:58,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:58,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:17:58,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:58,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:17:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:58,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:17:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:58,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:17:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:58,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:17:58,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:58,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:17:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:58,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:17:58,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:58,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-13 18:17:58,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:58,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-13 18:17:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:17:58,637 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2021-11-13 18:17:58,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:17:58,637 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158628346] [2021-11-13 18:17:58,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158628346] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:17:58,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:17:58,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:17:58,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045555883] [2021-11-13 18:17:58,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:17:58,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:17:58,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:17:58,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:17:58,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:17:58,640 INFO L87 Difference]: Start difference. First operand 27719 states and 37890 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-13 18:18:00,747 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:18:06,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:18:06,714 INFO L93 Difference]: Finished difference Result 29345 states and 40455 transitions. [2021-11-13 18:18:06,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:18:06,728 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 203 [2021-11-13 18:18:06,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:18:06,899 INFO L225 Difference]: With dead ends: 29345 [2021-11-13 18:18:06,899 INFO L226 Difference]: Without dead ends: 29343 [2021-11-13 18:18:06,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:18:06,917 INFO L933 BasicCegarLoop]: 2456 mSDtfsCounter, 2753 mSDsluCounter, 4864 mSDsCounter, 0 mSdLazyCounter, 2001 mSolverCounterSat, 1091 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6231.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3040 SdHoareTripleChecker+Valid, 7320 SdHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 38.75ms SdHoareTripleChecker+Time, 1091 IncrementalHoareTripleChecker+Valid, 2001 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6820.74ms IncrementalHoareTripleChecker+Time [2021-11-13 18:18:06,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3040 Valid, 7320 Invalid, 3093 Unknown, 0 Unchecked, 38.75ms Time], IncrementalHoareTripleChecker [1091 Valid, 2001 Invalid, 1 Unknown, 0 Unchecked, 6820.74ms Time] [2021-11-13 18:18:06,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29343 states. [2021-11-13 18:18:08,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29343 to 27723. [2021-11-13 18:18:08,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27723 states, 18946 states have (on average 1.2646996727541433) internal successors, (23961), 19304 states have internal predecessors, (23961), 6938 states have call successors, (6938), 1851 states have call predecessors, (6938), 1836 states have return successors, (6994), 6807 states have call predecessors, (6994), 6934 states have call successors, (6994) [2021-11-13 18:18:08,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27723 states to 27723 states and 37893 transitions. [2021-11-13 18:18:08,851 INFO L78 Accepts]: Start accepts. Automaton has 27723 states and 37893 transitions. Word has length 203 [2021-11-13 18:18:08,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:18:08,852 INFO L470 AbstractCegarLoop]: Abstraction has 27723 states and 37893 transitions. [2021-11-13 18:18:08,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-13 18:18:08,853 INFO L276 IsEmpty]: Start isEmpty. Operand 27723 states and 37893 transitions. [2021-11-13 18:18:08,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-13 18:18:08,858 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:18:08,859 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:18:08,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 18:18:08,859 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)] === [2021-11-13 18:18:08,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:18:08,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1872831113, now seen corresponding path program 1 times [2021-11-13 18:18:08,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:18:08,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671849448] [2021-11-13 18:18:08,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:18:08,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:18:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:18:09,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:09,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:18:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:09,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:18:09,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:18:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:18:09,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:09,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:18:09,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:09,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:18:09,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:18:09,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:09,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:18:09,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:09,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:18:09,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:18:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:18:09,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:18:09,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:18:09,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:18:09,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:18:09,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:18:09,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-13 18:18:09,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-13 18:18:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-13 18:18:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:09,850 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 629 trivial. 0 not checked. [2021-11-13 18:18:09,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:18:09,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671849448] [2021-11-13 18:18:09,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671849448] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:18:09,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:18:09,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:18:09,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456451385] [2021-11-13 18:18:09,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:18:09,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:18:09,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:18:09,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:18:09,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:18:09,853 INFO L87 Difference]: Start difference. First operand 27723 states and 37893 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-13 18:18:11,952 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:18:18,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:18:18,016 INFO L93 Difference]: Finished difference Result 29349 states and 40458 transitions. [2021-11-13 18:18:18,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:18:18,017 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 208 [2021-11-13 18:18:18,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:18:18,307 INFO L225 Difference]: With dead ends: 29349 [2021-11-13 18:18:18,307 INFO L226 Difference]: Without dead ends: 29347 [2021-11-13 18:18:18,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:18:18,323 INFO L933 BasicCegarLoop]: 2462 mSDtfsCounter, 2748 mSDsluCounter, 4876 mSDsCounter, 0 mSdLazyCounter, 2004 mSolverCounterSat, 1087 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6251.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3035 SdHoareTripleChecker+Valid, 7338 SdHoareTripleChecker+Invalid, 3092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 42.64ms SdHoareTripleChecker+Time, 1087 IncrementalHoareTripleChecker+Valid, 2004 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6894.58ms IncrementalHoareTripleChecker+Time [2021-11-13 18:18:18,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3035 Valid, 7338 Invalid, 3092 Unknown, 0 Unchecked, 42.64ms Time], IncrementalHoareTripleChecker [1087 Valid, 2004 Invalid, 1 Unknown, 0 Unchecked, 6894.58ms Time] [2021-11-13 18:18:18,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29347 states. [2021-11-13 18:18:19,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29347 to 27727. [2021-11-13 18:18:19,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27727 states, 18949 states have (on average 1.2646577655812972) internal successors, (23964), 19307 states have internal predecessors, (23964), 6938 states have call successors, (6938), 1852 states have call predecessors, (6938), 1837 states have return successors, (6994), 6807 states have call predecessors, (6994), 6934 states have call successors, (6994) [2021-11-13 18:18:19,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27727 states to 27727 states and 37896 transitions. [2021-11-13 18:18:19,944 INFO L78 Accepts]: Start accepts. Automaton has 27727 states and 37896 transitions. Word has length 208 [2021-11-13 18:18:19,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:18:19,945 INFO L470 AbstractCegarLoop]: Abstraction has 27727 states and 37896 transitions. [2021-11-13 18:18:19,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-13 18:18:19,945 INFO L276 IsEmpty]: Start isEmpty. Operand 27727 states and 37896 transitions. [2021-11-13 18:18:19,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-11-13 18:18:19,953 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:18:19,954 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 3, 3, 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] [2021-11-13 18:18:19,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 18:18:19,954 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)] === [2021-11-13 18:18:19,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:18:19,955 INFO L85 PathProgramCache]: Analyzing trace with hash -2044719224, now seen corresponding path program 1 times [2021-11-13 18:18:19,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:18:19,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101430532] [2021-11-13 18:18:19,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:18:19,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:18:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:18:20,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:20,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:18:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:18:20,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:18:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:20,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:18:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:20,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:18:20,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:20,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:18:20,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:18:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:18:20,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:18:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:18:20,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:20,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:18:20,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:18:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:18:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:18:20,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:18:20,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:18:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-13 18:18:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-13 18:18:20,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:18:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-13 18:18:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-11-13 18:18:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-13 18:18:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:20,944 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2021-11-13 18:18:20,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:18:20,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101430532] [2021-11-13 18:18:20,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101430532] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:18:20,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:18:20,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:18:20,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373960419] [2021-11-13 18:18:20,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:18:20,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:18:20,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:18:20,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:18:20,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:18:20,949 INFO L87 Difference]: Start difference. First operand 27727 states and 37896 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 3 states have internal predecessors, (72), 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) [2021-11-13 18:18:23,044 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:18:25,271 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:18:27,541 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:18:41,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:18:41,007 INFO L93 Difference]: Finished difference Result 70835 states and 97393 transitions. [2021-11-13 18:18:41,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:18:41,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 3 states have internal predecessors, (72), 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 225 [2021-11-13 18:18:41,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:18:41,268 INFO L225 Difference]: With dead ends: 70835 [2021-11-13 18:18:41,269 INFO L226 Difference]: Without dead ends: 43295 [2021-11-13 18:18:41,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:18:41,534 INFO L933 BasicCegarLoop]: 4481 mSDtfsCounter, 3464 mSDsluCounter, 3689 mSDsCounter, 0 mSdLazyCounter, 3840 mSolverCounterSat, 2654 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15804.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3787 SdHoareTripleChecker+Valid, 8170 SdHoareTripleChecker+Invalid, 6497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 70.35ms SdHoareTripleChecker+Time, 2654 IncrementalHoareTripleChecker+Valid, 3840 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17812.84ms IncrementalHoareTripleChecker+Time [2021-11-13 18:18:41,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3787 Valid, 8170 Invalid, 6497 Unknown, 0 Unchecked, 70.35ms Time], IncrementalHoareTripleChecker [2654 Valid, 3840 Invalid, 3 Unknown, 0 Unchecked, 17812.84ms Time] [2021-11-13 18:18:41,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43295 states. [2021-11-13 18:18:43,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43295 to 40842. [2021-11-13 18:18:43,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40842 states, 27918 states have (on average 1.2641306683859876) internal successors, (35292), 28424 states have internal predecessors, (35292), 10218 states have call successors, (10218), 2722 states have call predecessors, (10218), 2703 states have return successors, (10304), 10046 states have call predecessors, (10304), 10214 states have call successors, (10304) [2021-11-13 18:18:44,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40842 states to 40842 states and 55814 transitions. [2021-11-13 18:18:44,033 INFO L78 Accepts]: Start accepts. Automaton has 40842 states and 55814 transitions. Word has length 225 [2021-11-13 18:18:44,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:18:44,034 INFO L470 AbstractCegarLoop]: Abstraction has 40842 states and 55814 transitions. [2021-11-13 18:18:44,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 3 states have internal predecessors, (72), 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) [2021-11-13 18:18:44,035 INFO L276 IsEmpty]: Start isEmpty. Operand 40842 states and 55814 transitions. [2021-11-13 18:18:44,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-11-13 18:18:44,041 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:18:44,041 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 4, 3, 3, 3, 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] [2021-11-13 18:18:44,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 18:18:44,042 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)] === [2021-11-13 18:18:44,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:18:44,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1289498066, now seen corresponding path program 1 times [2021-11-13 18:18:44,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:18:44,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648448991] [2021-11-13 18:18:44,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:18:44,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:18:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:44,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:18:44,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:44,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:44,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:44,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:18:44,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:44,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:44,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:44,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:18:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:44,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:44,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:18:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:44,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:44,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:18:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:44,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:44,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:44,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:18:44,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:44,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:44,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:18:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:44,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:44,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:18:44,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:44,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:44,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:18:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:44,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:44,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:44,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:18:44,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:44,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:44,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:44,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:18:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:44,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:44,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:44,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:18:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:45,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:18:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:45,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:18:45,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:45,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:18:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:45,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:45,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:18:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:45,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:18:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:45,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-13 18:18:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:45,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-13 18:18:45,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:45,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-13 18:18:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:45,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-13 18:18:45,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:45,165 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2021-11-13 18:18:45,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:18:45,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648448991] [2021-11-13 18:18:45,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648448991] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:18:45,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:18:45,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:18:45,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017611043] [2021-11-13 18:18:45,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:18:45,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:18:45,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:18:45,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:18:45,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:18:45,169 INFO L87 Difference]: Start difference. First operand 40842 states and 55814 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-11-13 18:18:47,280 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:18:54,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:18:54,026 INFO L93 Difference]: Finished difference Result 43266 states and 59641 transitions. [2021-11-13 18:18:54,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:18:54,027 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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 213 [2021-11-13 18:18:54,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:18:54,196 INFO L225 Difference]: With dead ends: 43266 [2021-11-13 18:18:54,196 INFO L226 Difference]: Without dead ends: 43264 [2021-11-13 18:18:54,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:18:54,325 INFO L933 BasicCegarLoop]: 2459 mSDtfsCounter, 2752 mSDsluCounter, 4871 mSDsCounter, 0 mSdLazyCounter, 2001 mSolverCounterSat, 1087 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6308.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3038 SdHoareTripleChecker+Valid, 7330 SdHoareTripleChecker+Invalid, 3089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.10ms SdHoareTripleChecker+Time, 1087 IncrementalHoareTripleChecker+Valid, 2001 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6905.40ms IncrementalHoareTripleChecker+Time [2021-11-13 18:18:54,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3038 Valid, 7330 Invalid, 3089 Unknown, 0 Unchecked, 36.10ms Time], IncrementalHoareTripleChecker [1087 Valid, 2001 Invalid, 1 Unknown, 0 Unchecked, 6905.40ms Time] [2021-11-13 18:18:54,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43264 states. [2021-11-13 18:18:56,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43264 to 40846. [2021-11-13 18:18:56,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40846 states, 27921 states have (on average 1.2641022885999784) internal successors, (35295), 28427 states have internal predecessors, (35295), 10218 states have call successors, (10218), 2723 states have call predecessors, (10218), 2704 states have return successors, (10304), 10046 states have call predecessors, (10304), 10214 states have call successors, (10304) [2021-11-13 18:18:56,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40846 states to 40846 states and 55817 transitions. [2021-11-13 18:18:56,802 INFO L78 Accepts]: Start accepts. Automaton has 40846 states and 55817 transitions. Word has length 213 [2021-11-13 18:18:56,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:18:56,803 INFO L470 AbstractCegarLoop]: Abstraction has 40846 states and 55817 transitions. [2021-11-13 18:18:56,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-11-13 18:18:56,804 INFO L276 IsEmpty]: Start isEmpty. Operand 40846 states and 55817 transitions. [2021-11-13 18:18:56,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-11-13 18:18:56,811 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:18:56,811 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 5, 4, 4, 3, 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] [2021-11-13 18:18:56,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-13 18:18:56,812 INFO L402 AbstractCegarLoop]: === Iteration 11 === 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)] === [2021-11-13 18:18:56,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:18:56,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1102794647, now seen corresponding path program 1 times [2021-11-13 18:18:56,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:18:56,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186024664] [2021-11-13 18:18:56,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:18:56,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:18:57,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:18:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:57,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:18:57,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:57,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:18:57,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:18:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:57,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:18:57,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:57,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:18:57,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:57,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:18:57,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:57,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:18:57,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:18:57,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:57,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:18:57,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:18:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:18:57,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:18:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:18:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:18:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:57,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:18:57,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:18:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-13 18:18:57,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-13 18:18:57,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-13 18:18:57,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-13 18:18:57,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-13 18:18:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:57,665 INFO L134 CoverageAnalysis]: Checked inductivity of 657 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-11-13 18:18:57,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:18:57,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186024664] [2021-11-13 18:18:57,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186024664] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:18:57,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:18:57,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:18:57,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68666654] [2021-11-13 18:18:57,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:18:57,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:18:57,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:18:57,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:18:57,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:18:57,669 INFO L87 Difference]: Start difference. First operand 40846 states and 55817 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-11-13 18:18:59,763 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:07,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:19:07,083 INFO L93 Difference]: Finished difference Result 43270 states and 59644 transitions. [2021-11-13 18:19:07,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:19:07,084 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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 218 [2021-11-13 18:19:07,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:19:07,240 INFO L225 Difference]: With dead ends: 43270 [2021-11-13 18:19:07,240 INFO L226 Difference]: Without dead ends: 43268 [2021-11-13 18:19:07,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:19:07,260 INFO L933 BasicCegarLoop]: 2464 mSDtfsCounter, 2747 mSDsluCounter, 4881 mSDsCounter, 0 mSdLazyCounter, 2001 mSolverCounterSat, 1086 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6230.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3033 SdHoareTripleChecker+Valid, 7345 SdHoareTripleChecker+Invalid, 3088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.46ms SdHoareTripleChecker+Time, 1086 IncrementalHoareTripleChecker+Valid, 2001 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7004.04ms IncrementalHoareTripleChecker+Time [2021-11-13 18:19:07,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3033 Valid, 7345 Invalid, 3088 Unknown, 0 Unchecked, 37.46ms Time], IncrementalHoareTripleChecker [1086 Valid, 2001 Invalid, 1 Unknown, 0 Unchecked, 7004.04ms Time] [2021-11-13 18:19:07,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43268 states. [2021-11-13 18:19:09,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43268 to 40850. [2021-11-13 18:19:09,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40850 states, 27924 states have (on average 1.2640739149119038) internal successors, (35298), 28430 states have internal predecessors, (35298), 10218 states have call successors, (10218), 2724 states have call predecessors, (10218), 2705 states have return successors, (10304), 10046 states have call predecessors, (10304), 10214 states have call successors, (10304) [2021-11-13 18:19:09,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40850 states to 40850 states and 55820 transitions. [2021-11-13 18:19:09,510 INFO L78 Accepts]: Start accepts. Automaton has 40850 states and 55820 transitions. Word has length 218 [2021-11-13 18:19:09,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:19:09,511 INFO L470 AbstractCegarLoop]: Abstraction has 40850 states and 55820 transitions. [2021-11-13 18:19:09,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-11-13 18:19:09,512 INFO L276 IsEmpty]: Start isEmpty. Operand 40850 states and 55820 transitions. [2021-11-13 18:19:09,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-13 18:19:09,519 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:19:09,520 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 6, 5, 5, 3, 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] [2021-11-13 18:19:09,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-13 18:19:09,520 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)] === [2021-11-13 18:19:09,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:19:09,521 INFO L85 PathProgramCache]: Analyzing trace with hash 982770574, now seen corresponding path program 1 times [2021-11-13 18:19:09,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:19:09,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485165323] [2021-11-13 18:19:09,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:19:09,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:19:09,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:09,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:19:09,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:09,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:09,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:09,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:19:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:09,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:09,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:09,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:19:09,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:09,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:09,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:19:10,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:19:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:10,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:19:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:19:10,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:19:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:19:10,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:10,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:19:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:10,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:19:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:19:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:19:10,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:19:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:19:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:10,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:19:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:19:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-13 18:19:10,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-13 18:19:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-13 18:19:10,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-13 18:19:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-13 18:19:10,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-13 18:19:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:10,297 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 665 trivial. 0 not checked. [2021-11-13 18:19:10,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:19:10,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485165323] [2021-11-13 18:19:10,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485165323] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:19:10,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:19:10,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:19:10,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382978177] [2021-11-13 18:19:10,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:19:10,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:19:10,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:19:10,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:19:10,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:19:10,300 INFO L87 Difference]: Start difference. First operand 40850 states and 55820 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-11-13 18:19:12,532 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:19,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:19:19,910 INFO L93 Difference]: Finished difference Result 43274 states and 59647 transitions. [2021-11-13 18:19:19,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:19:19,911 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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 223 [2021-11-13 18:19:19,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:19:20,079 INFO L225 Difference]: With dead ends: 43274 [2021-11-13 18:19:20,079 INFO L226 Difference]: Without dead ends: 43272 [2021-11-13 18:19:20,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:19:20,099 INFO L933 BasicCegarLoop]: 2464 mSDtfsCounter, 2747 mSDsluCounter, 4880 mSDsCounter, 0 mSdLazyCounter, 2001 mSolverCounterSat, 1083 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6318.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3034 SdHoareTripleChecker+Valid, 7344 SdHoareTripleChecker+Invalid, 3085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.68ms SdHoareTripleChecker+Time, 1083 IncrementalHoareTripleChecker+Valid, 2001 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7126.33ms IncrementalHoareTripleChecker+Time [2021-11-13 18:19:20,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3034 Valid, 7344 Invalid, 3085 Unknown, 0 Unchecked, 37.68ms Time], IncrementalHoareTripleChecker [1083 Valid, 2001 Invalid, 1 Unknown, 0 Unchecked, 7126.33ms Time] [2021-11-13 18:19:20,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43272 states. [2021-11-13 18:19:22,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43272 to 40854. [2021-11-13 18:19:22,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40854 states, 27927 states have (on average 1.264045547319798) internal successors, (35301), 28433 states have internal predecessors, (35301), 10218 states have call successors, (10218), 2725 states have call predecessors, (10218), 2706 states have return successors, (10304), 10046 states have call predecessors, (10304), 10214 states have call successors, (10304) [2021-11-13 18:19:22,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40854 states to 40854 states and 55823 transitions. [2021-11-13 18:19:22,421 INFO L78 Accepts]: Start accepts. Automaton has 40854 states and 55823 transitions. Word has length 223 [2021-11-13 18:19:22,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:19:22,421 INFO L470 AbstractCegarLoop]: Abstraction has 40854 states and 55823 transitions. [2021-11-13 18:19:22,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-11-13 18:19:22,421 INFO L276 IsEmpty]: Start isEmpty. Operand 40854 states and 55823 transitions. [2021-11-13 18:19:22,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-11-13 18:19:22,427 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:19:22,428 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 7, 6, 6, 3, 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] [2021-11-13 18:19:22,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-13 18:19:22,428 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)] === [2021-11-13 18:19:22,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:19:22,429 INFO L85 PathProgramCache]: Analyzing trace with hash -2034677321, now seen corresponding path program 1 times [2021-11-13 18:19:22,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:19:22,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463828777] [2021-11-13 18:19:22,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:19:22,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:19:22,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:22,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:19:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:22,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:22,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:22,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:19:22,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:22,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:22,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:19:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:22,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:22,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:19:22,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:22,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:22,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:22,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:19:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:22,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:22,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:19:22,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:22,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:22,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:22,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:19:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:22,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:22,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:22,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:19:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:23,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:23,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:19:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:23,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:23,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:23,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:19:23,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:23,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:23,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:23,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:19:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:23,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:23,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:19:23,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:23,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:19:23,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:23,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:19:23,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:23,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:19:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:23,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:23,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:23,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:19:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:23,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:19:23,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:23,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-13 18:19:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:23,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-13 18:19:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:23,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-13 18:19:23,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:23,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-13 18:19:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:23,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-13 18:19:23,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:23,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-13 18:19:23,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:23,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-13 18:19:23,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:23,222 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2021-11-13 18:19:23,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:19:23,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463828777] [2021-11-13 18:19:23,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463828777] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:19:23,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:19:23,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:19:23,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768398392] [2021-11-13 18:19:23,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:19:23,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:19:23,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:19:23,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:19:23,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:19:23,226 INFO L87 Difference]: Start difference. First operand 40854 states and 55823 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-11-13 18:19:25,355 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:32,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:19:32,970 INFO L93 Difference]: Finished difference Result 43278 states and 59650 transitions. [2021-11-13 18:19:32,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:19:32,972 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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 228 [2021-11-13 18:19:32,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:19:33,141 INFO L225 Difference]: With dead ends: 43278 [2021-11-13 18:19:33,141 INFO L226 Difference]: Without dead ends: 43276 [2021-11-13 18:19:33,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:19:33,160 INFO L933 BasicCegarLoop]: 2468 mSDtfsCounter, 2743 mSDsluCounter, 4889 mSDsCounter, 0 mSdLazyCounter, 2004 mSolverCounterSat, 1083 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6625.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3029 SdHoareTripleChecker+Valid, 7357 SdHoareTripleChecker+Invalid, 3088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.53ms SdHoareTripleChecker+Time, 1083 IncrementalHoareTripleChecker+Valid, 2004 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7262.16ms IncrementalHoareTripleChecker+Time [2021-11-13 18:19:33,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3029 Valid, 7357 Invalid, 3088 Unknown, 0 Unchecked, 37.53ms Time], IncrementalHoareTripleChecker [1083 Valid, 2004 Invalid, 1 Unknown, 0 Unchecked, 7262.16ms Time] [2021-11-13 18:19:33,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43276 states. [2021-11-13 18:19:35,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43276 to 40858. [2021-11-13 18:19:35,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40858 states, 27930 states have (on average 1.264017185821697) internal successors, (35304), 28436 states have internal predecessors, (35304), 10218 states have call successors, (10218), 2726 states have call predecessors, (10218), 2707 states have return successors, (10304), 10046 states have call predecessors, (10304), 10214 states have call successors, (10304) [2021-11-13 18:19:35,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40858 states to 40858 states and 55826 transitions. [2021-11-13 18:19:35,471 INFO L78 Accepts]: Start accepts. Automaton has 40858 states and 55826 transitions. Word has length 228 [2021-11-13 18:19:35,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:19:35,472 INFO L470 AbstractCegarLoop]: Abstraction has 40858 states and 55826 transitions. [2021-11-13 18:19:35,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-11-13 18:19:35,473 INFO L276 IsEmpty]: Start isEmpty. Operand 40858 states and 55826 transitions. [2021-11-13 18:19:35,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-11-13 18:19:35,479 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:19:35,480 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 8, 7, 7, 3, 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] [2021-11-13 18:19:35,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-13 18:19:35,480 INFO L402 AbstractCegarLoop]: === Iteration 14 === 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)] === [2021-11-13 18:19:35,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:19:35,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1578593518, now seen corresponding path program 1 times [2021-11-13 18:19:35,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:19:35,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782121667] [2021-11-13 18:19:35,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:19:35,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:19:35,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:19:36,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:19:36,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:36,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:19:36,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:36,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:19:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:19:36,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:19:36,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:36,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:19:36,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:36,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:19:36,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:19:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:36,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:19:36,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:36,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:19:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:19:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:19:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:19:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:19:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:19:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:19:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-13 18:19:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-13 18:19:36,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-13 18:19:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-13 18:19:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-13 18:19:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-13 18:19:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-13 18:19:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-13 18:19:36,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:36,605 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 709 trivial. 0 not checked. [2021-11-13 18:19:36,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:19:36,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782121667] [2021-11-13 18:19:36,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782121667] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:19:36,605 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:19:36,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:19:36,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141209537] [2021-11-13 18:19:36,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:19:36,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:19:36,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:19:36,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:19:36,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:19:36,607 INFO L87 Difference]: Start difference. First operand 40858 states and 55826 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-11-13 18:19:38,679 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:48,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:19:48,644 INFO L93 Difference]: Finished difference Result 49516 states and 67384 transitions. [2021-11-13 18:19:48,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:19:48,645 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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 233 [2021-11-13 18:19:48,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:19:48,915 INFO L225 Difference]: With dead ends: 49516 [2021-11-13 18:19:48,915 INFO L226 Difference]: Without dead ends: 49514 [2021-11-13 18:19:48,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:19:48,929 INFO L933 BasicCegarLoop]: 2789 mSDtfsCounter, 2615 mSDsluCounter, 5481 mSDsCounter, 0 mSdLazyCounter, 3038 mSolverCounterSat, 1066 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8179.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2920 SdHoareTripleChecker+Valid, 8270 SdHoareTripleChecker+Invalid, 4105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 49.90ms SdHoareTripleChecker+Time, 1066 IncrementalHoareTripleChecker+Valid, 3038 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9033.16ms IncrementalHoareTripleChecker+Time [2021-11-13 18:19:48,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2920 Valid, 8270 Invalid, 4105 Unknown, 0 Unchecked, 49.90ms Time], IncrementalHoareTripleChecker [1066 Valid, 3038 Invalid, 1 Unknown, 0 Unchecked, 9033.16ms Time] [2021-11-13 18:19:48,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49514 states. [2021-11-13 18:19:51,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49514 to 46712. [2021-11-13 18:19:51,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46712 states, 32028 states have (on average 1.2620831772199326) internal successors, (40422), 32579 states have internal predecessors, (40422), 11235 states have call successors, (11235), 3465 states have call predecessors, (11235), 3446 states have return successors, (11321), 11063 states have call predecessors, (11321), 11231 states have call successors, (11321) [2021-11-13 18:19:51,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46712 states to 46712 states and 62978 transitions. [2021-11-13 18:19:51,580 INFO L78 Accepts]: Start accepts. Automaton has 46712 states and 62978 transitions. Word has length 233 [2021-11-13 18:19:51,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:19:51,581 INFO L470 AbstractCegarLoop]: Abstraction has 46712 states and 62978 transitions. [2021-11-13 18:19:51,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-11-13 18:19:51,581 INFO L276 IsEmpty]: Start isEmpty. Operand 46712 states and 62978 transitions. [2021-11-13 18:19:51,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-11-13 18:19:51,589 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:19:51,590 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 9, 8, 8, 3, 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] [2021-11-13 18:19:51,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-13 18:19:51,590 INFO L402 AbstractCegarLoop]: === Iteration 15 === 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)] === [2021-11-13 18:19:51,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:19:51,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1995519017, now seen corresponding path program 1 times [2021-11-13 18:19:51,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:19:51,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018612942] [2021-11-13 18:19:51,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:19:51,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:19:52,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:19:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:19:52,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:19:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:52,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:19:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:52,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:19:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:19:52,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:19:52,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:52,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:19:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:19:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:52,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:19:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:19:52,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:19:52,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:19:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:19:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:19:52,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:52,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:19:52,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:19:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-13 18:19:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-13 18:19:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-13 18:19:52,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-13 18:19:52,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-13 18:19:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-13 18:19:52,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-13 18:19:52,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-13 18:19:52,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-11-13 18:19:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:52,610 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked. [2021-11-13 18:19:52,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:19:52,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018612942] [2021-11-13 18:19:52,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018612942] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:19:52,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:19:52,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:19:52,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551578668] [2021-11-13 18:19:52,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:19:52,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:19:52,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:19:52,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:19:52,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:19:52,613 INFO L87 Difference]: Start difference. First operand 46712 states and 62978 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-11-13 18:19:54,721 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:02,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:20:02,714 INFO L93 Difference]: Finished difference Result 49520 states and 67387 transitions. [2021-11-13 18:20:02,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:20:02,715 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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 238 [2021-11-13 18:20:02,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:20:02,916 INFO L225 Difference]: With dead ends: 49520 [2021-11-13 18:20:02,916 INFO L226 Difference]: Without dead ends: 49518 [2021-11-13 18:20:02,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:20:02,936 INFO L933 BasicCegarLoop]: 2457 mSDtfsCounter, 2753 mSDsluCounter, 4867 mSDsCounter, 0 mSdLazyCounter, 2001 mSolverCounterSat, 1084 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6328.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3039 SdHoareTripleChecker+Valid, 7324 SdHoareTripleChecker+Invalid, 3086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.86ms SdHoareTripleChecker+Time, 1084 IncrementalHoareTripleChecker+Valid, 2001 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7118.17ms IncrementalHoareTripleChecker+Time [2021-11-13 18:20:02,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3039 Valid, 7324 Invalid, 3086 Unknown, 0 Unchecked, 36.86ms Time], IncrementalHoareTripleChecker [1084 Valid, 2001 Invalid, 1 Unknown, 0 Unchecked, 7118.17ms Time] [2021-11-13 18:20:02,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49518 states. [2021-11-13 18:20:05,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49518 to 46716. [2021-11-13 18:20:05,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46716 states, 32031 states have (on average 1.2620586307015078) internal successors, (40425), 32582 states have internal predecessors, (40425), 11235 states have call successors, (11235), 3466 states have call predecessors, (11235), 3447 states have return successors, (11321), 11063 states have call predecessors, (11321), 11231 states have call successors, (11321) [2021-11-13 18:20:05,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46716 states to 46716 states and 62981 transitions. [2021-11-13 18:20:05,667 INFO L78 Accepts]: Start accepts. Automaton has 46716 states and 62981 transitions. Word has length 238 [2021-11-13 18:20:05,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:20:05,668 INFO L470 AbstractCegarLoop]: Abstraction has 46716 states and 62981 transitions. [2021-11-13 18:20:05,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-11-13 18:20:05,669 INFO L276 IsEmpty]: Start isEmpty. Operand 46716 states and 62981 transitions. [2021-11-13 18:20:05,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-13 18:20:05,677 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:20:05,678 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 10, 9, 9, 3, 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] [2021-11-13 18:20:05,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-13 18:20:05,678 INFO L402 AbstractCegarLoop]: === Iteration 16 === 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)] === [2021-11-13 18:20:05,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:20:05,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1783075250, now seen corresponding path program 1 times [2021-11-13 18:20:05,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:20:05,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766757417] [2021-11-13 18:20:05,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:20:05,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:20:05,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:20:06,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:20:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:20:06,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:20:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:20:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:20:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:20:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:20:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:20:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:20:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:20:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:20:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:20:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:20:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:20:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:20:06,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:20:06,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:20:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:20:06,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:20:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:20:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:20:06,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:20:06,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:20:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:20:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:20:06,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:20:06,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:20:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:20:06,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-13 18:20:06,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-13 18:20:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-13 18:20:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-13 18:20:06,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-13 18:20:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-13 18:20:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-13 18:20:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-13 18:20:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-11-13 18:20:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-13 18:20:06,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:06,400 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 769 trivial. 0 not checked. [2021-11-13 18:20:06,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:20:06,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766757417] [2021-11-13 18:20:06,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766757417] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:20:06,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:20:06,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:20:06,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913048514] [2021-11-13 18:20:06,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:20:06,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:20:06,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:20:06,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:20:06,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:20:06,407 INFO L87 Difference]: Start difference. First operand 46716 states and 62981 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-13 18:20:08,502 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []