./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-ethernet-qlogic-qla3xxx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea4ea1e-de4b-437c-a978-987e0b17e485/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea4ea1e-de4b-437c-a978-987e0b17e485/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea4ea1e-de4b-437c-a978-987e0b17e485/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea4ea1e-de4b-437c-a978-987e0b17e485/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea4ea1e-de4b-437c-a978-987e0b17e485/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea4ea1e-de4b-437c-a978-987e0b17e485/bin/uautomizer-Dbtcem3rbc --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 5663310b82fa3e5d48c5bcacd13ac8ac886029c41a2f8f3bd2b8442c496a9447 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:22:10,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:22:10,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:22:11,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:22:11,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:22:11,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:22:11,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:22:11,065 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:22:11,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:22:11,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:22:11,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:22:11,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:22:11,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:22:11,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:22:11,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:22:11,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:22:11,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:22:11,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:22:11,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:22:11,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:22:11,113 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:22:11,115 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:22:11,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:22:11,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:22:11,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:22:11,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:22:11,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:22:11,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:22:11,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:22:11,125 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:22:11,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:22:11,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:22:11,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:22:11,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:22:11,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:22:11,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:22:11,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:22:11,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:22:11,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:22:11,134 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:22:11,135 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:22:11,137 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea4ea1e-de4b-437c-a978-987e0b17e485/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:22:11,169 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:22:11,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:22:11,169 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:22:11,170 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:22:11,171 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:22:11,171 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:22:11,172 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:22:11,172 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:22:11,173 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:22:11,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:22:11,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:22:11,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:22:11,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:22:11,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:22:11,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:22:11,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:22:11,175 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:22:11,176 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:22:11,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:22:11,176 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:22:11,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:22:11,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:22:11,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:22:11,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:22:11,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:22:11,178 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:22:11,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:22:11,179 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:22:11,179 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:22:11,179 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:22:11,180 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_3ea4ea1e-de4b-437c-a978-987e0b17e485/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea4ea1e-de4b-437c-a978-987e0b17e485/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5663310b82fa3e5d48c5bcacd13ac8ac886029c41a2f8f3bd2b8442c496a9447 [2022-11-02 20:22:11,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:22:11,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:22:11,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:22:11,535 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:22:11,537 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:22:11,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea4ea1e-de4b-437c-a978-987e0b17e485/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2022-11-02 20:22:11,613 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea4ea1e-de4b-437c-a978-987e0b17e485/bin/uautomizer-Dbtcem3rbc/data/d38267c44/f4019f4fe7754e2795cf97f007837211/FLAGbae0175f3 [2022-11-02 20:22:12,792 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:22:12,793 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea4ea1e-de4b-437c-a978-987e0b17e485/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2022-11-02 20:22:12,866 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea4ea1e-de4b-437c-a978-987e0b17e485/bin/uautomizer-Dbtcem3rbc/data/d38267c44/f4019f4fe7754e2795cf97f007837211/FLAGbae0175f3 [2022-11-02 20:22:12,992 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea4ea1e-de4b-437c-a978-987e0b17e485/bin/uautomizer-Dbtcem3rbc/data/d38267c44/f4019f4fe7754e2795cf97f007837211 [2022-11-02 20:22:12,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:22:12,996 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:22:13,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:22:13,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:22:13,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:22:13,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:22:12" (1/1) ... [2022-11-02 20:22:13,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55978cc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:13, skipping insertion in model container [2022-11-02 20:22:13,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:22:12" (1/1) ... [2022-11-02 20:22:13,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:22:13,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:22:18,303 WARN L230 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_3ea4ea1e-de4b-437c-a978-987e0b17e485/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[408897,408910] [2022-11-02 20:22:18,306 WARN L230 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_3ea4ea1e-de4b-437c-a978-987e0b17e485/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409066,409079] [2022-11-02 20:22:18,315 WARN L230 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_3ea4ea1e-de4b-437c-a978-987e0b17e485/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409233,409246] [2022-11-02 20:22:18,316 WARN L230 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_3ea4ea1e-de4b-437c-a978-987e0b17e485/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409401,409414] [2022-11-02 20:22:18,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:22:18,427 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:22:19,022 WARN L230 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_3ea4ea1e-de4b-437c-a978-987e0b17e485/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[408897,408910] [2022-11-02 20:22:19,024 WARN L230 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_3ea4ea1e-de4b-437c-a978-987e0b17e485/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409066,409079] [2022-11-02 20:22:19,025 WARN L230 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_3ea4ea1e-de4b-437c-a978-987e0b17e485/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409233,409246] [2022-11-02 20:22:19,026 WARN L230 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_3ea4ea1e-de4b-437c-a978-987e0b17e485/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409401,409414] [2022-11-02 20:22:19,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:22:19,325 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:22:19,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:19 WrapperNode [2022-11-02 20:22:19,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:22:19,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:22:19,327 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:22:19,327 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:22:19,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:19" (1/1) ... [2022-11-02 20:22:19,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:19" (1/1) ... [2022-11-02 20:22:19,831 INFO L138 Inliner]: procedures = 572, calls = 2923, calls flagged for inlining = 287, calls inlined = 255, statements flattened = 6555 [2022-11-02 20:22:19,837 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:22:19,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:22:19,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:22:19,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:22:19,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:19" (1/1) ... [2022-11-02 20:22:19,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:19" (1/1) ... [2022-11-02 20:22:19,963 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:19" (1/1) ... [2022-11-02 20:22:19,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:19" (1/1) ... [2022-11-02 20:22:20,180 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:19" (1/1) ... [2022-11-02 20:22:20,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:19" (1/1) ... [2022-11-02 20:22:20,269 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:19" (1/1) ... [2022-11-02 20:22:20,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:19" (1/1) ... [2022-11-02 20:22:20,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:22:20,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:22:20,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:22:20,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:22:20,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:19" (1/1) ... [2022-11-02 20:22:20,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:22:20,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea4ea1e-de4b-437c-a978-987e0b17e485/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:22:20,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea4ea1e-de4b-437c-a978-987e0b17e485/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:22:20,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea4ea1e-de4b-437c-a978-987e0b17e485/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:22:20,717 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_link_speed [2022-11-02 20:22:20,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_link_speed [2022-11-02 20:22:20,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_hw_lock_of_ql3_adapter [2022-11-02 20:22:20,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_hw_lock_of_ql3_adapter [2022-11-02 20:22:20,731 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-02 20:22:20,731 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-02 20:22:20,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-02 20:22:20,732 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-02 20:22:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-02 20:22:20,732 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-02 20:22:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-02 20:22:20,732 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-02 20:22:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_close [2022-11-02 20:22:20,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_close [2022-11-02 20:22:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-02 20:22:20,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-02 20:22:20,734 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-02 20:22:20,734 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-02 20:22:20,734 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-11-02 20:22:20,734 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-11-02 20:22:20,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-02 20:22:20,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-02 20:22:20,735 INFO L130 BoogieDeclarations]: Found specification of procedure ql_this_adapter_controls_port [2022-11-02 20:22:20,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_this_adapter_controls_port [2022-11-02 20:22:20,736 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_interrupts [2022-11-02 20:22:20,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_interrupts [2022-11-02 20:22:20,736 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-02 20:22:20,736 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-02 20:22:20,737 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-02 20:22:20,737 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-02 20:22:20,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2022-11-02 20:22:20,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2022-11-02 20:22:20,738 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg_l [2022-11-02 20:22:20,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg_l [2022-11-02 20:22:20,738 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_send_free_list [2022-11-02 20:22:20,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_send_free_list [2022-11-02 20:22:20,739 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-02 20:22:20,739 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-02 20:22:20,739 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-02 20:22:20,739 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-02 20:22:20,740 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2022-11-02 20:22:20,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2022-11-02 20:22:20,740 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cycle_adapter [2022-11-02 20:22:20,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cycle_adapter [2022-11-02 20:22:20,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-02 20:22:20,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-02 20:22:20,741 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mac_cfg_soft_reset [2022-11-02 20:22:20,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mac_cfg_soft_reset [2022-11-02 20:22:20,742 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-02 20:22:20,742 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-02 20:22:20,742 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-02 20:22:20,742 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-02 20:22:20,743 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_disable_scan_mode [2022-11-02 20:22:20,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_disable_scan_mode [2022-11-02 20:22:20,743 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-02 20:22:20,743 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-02 20:22:20,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-02 20:22:20,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-02 20:22:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-02 20:22:20,759 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-02 20:22:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:22:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-02 20:22:20,760 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-02 20:22:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg_l [2022-11-02 20:22:20,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg_l [2022-11-02 20:22:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2022-11-02 20:22:20,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2022-11-02 20:22:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-02 20:22:20,761 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-02 20:22:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-11-02 20:22:20,761 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-11-02 20:22:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-02 20:22:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-02 20:22:20,762 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-02 20:22:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-02 20:22:20,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-02 20:22:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-02 20:22:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-02 20:22:20,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-02 20:22:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page1_reg [2022-11-02 20:22:20,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page1_reg [2022-11-02 20:22:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:22:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-02 20:22:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-02 20:22:20,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-02 20:22:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-02 20:22:20,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-02 20:22:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-02 20:22:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-02 20:22:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-02 20:22:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-02 20:22:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-02 20:22:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-11-02 20:22:20,767 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-11-02 20:22:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-02 20:22:20,767 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-02 20:22:20,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_hw_lock_of_ql3_adapter [2022-11-02 20:22:20,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_hw_lock_of_ql3_adapter [2022-11-02 20:22:20,768 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_register_page [2022-11-02 20:22:20,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_register_page [2022-11-02 20:22:20,769 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-02 20:22:20,769 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-02 20:22:20,769 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg_ex [2022-11-02 20:22:20,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg_ex [2022-11-02 20:22:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure ql_phy_init_ex [2022-11-02 20:22:20,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_phy_init_ex [2022-11-02 20:22:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-02 20:22:20,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-02 20:22:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg_l [2022-11-02 20:22:20,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg_l [2022-11-02 20:22:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:22:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg [2022-11-02 20:22:20,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg [2022-11-02 20:22:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-02 20:22:20,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-02 20:22:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-02 20:22:20,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-02 20:22:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-02 20:22:20,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-02 20:22:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2022-11-02 20:22:20,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2022-11-02 20:22:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page2_reg [2022-11-02 20:22:20,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page2_reg [2022-11-02 20:22:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:22:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg [2022-11-02 20:22:20,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg [2022-11-02 20:22:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-02 20:22:20,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-02 20:22:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-02 20:22:20,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-02 20:22:20,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:22:20,790 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg [2022-11-02 20:22:20,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg [2022-11-02 20:22:20,791 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-02 20:22:20,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-02 20:22:20,791 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2022-11-02 20:22:20,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2022-11-02 20:22:20,792 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-02 20:22:20,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-02 20:22:20,792 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-02 20:22:20,792 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-02 20:22:20,793 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_nvram_reg [2022-11-02 20:22:20,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_nvram_reg [2022-11-02 20:22:20,793 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-02 20:22:20,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-02 20:22:20,794 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-02 20:22:20,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-02 20:22:20,794 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-02 20:22:20,794 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-02 20:22:20,795 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-02 20:22:20,795 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-02 20:22:20,795 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_drvr_lock [2022-11-02 20:22:20,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_drvr_lock [2022-11-02 20:22:20,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-02 20:22:20,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-02 20:22:20,796 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-02 20:22:20,796 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-02 20:22:20,796 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_enable_scan_mode [2022-11-02 20:22:20,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_enable_scan_mode [2022-11-02 20:22:20,797 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-02 20:22:20,797 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-02 20:22:20,797 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-02 20:22:20,797 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-02 20:22:20,798 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-02 20:22:20,798 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-02 20:22:20,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:22:20,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:22:20,799 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_mii_ready [2022-11-02 20:22:20,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_mii_ready [2022-11-02 20:22:20,799 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-02 20:22:20,799 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-02 20:22:20,799 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_large_buffers [2022-11-02 20:22:20,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_large_buffers [2022-11-02 20:22:20,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-02 20:22:20,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-02 20:22:20,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-02 20:22:20,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-02 20:22:20,801 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-02 20:22:20,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-02 20:22:20,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-02 20:22:20,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-02 20:22:20,802 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-02 20:22:20,802 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-02 20:22:20,802 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2022-11-02 20:22:20,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2022-11-02 20:22:20,803 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-02 20:22:20,803 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-02 20:22:20,803 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-02 20:22:20,803 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-02 20:22:20,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-02 20:22:20,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-02 20:22:20,804 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg [2022-11-02 20:22:20,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg [2022-11-02 20:22:20,804 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-02 20:22:20,805 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-02 20:22:20,805 INFO L130 BoogieDeclarations]: Found specification of procedure PHY_Setup [2022-11-02 20:22:20,805 INFO L138 BoogieDeclarations]: Found implementation of procedure PHY_Setup [2022-11-02 20:22:20,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-02 20:22:20,806 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-02 20:22:20,806 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_buffer_queues [2022-11-02 20:22:20,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_buffer_queues [2022-11-02 20:22:20,806 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-02 20:22:20,806 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-02 20:22:20,807 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-02 20:22:20,807 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-02 20:22:20,807 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-02 20:22:20,807 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-02 20:22:20,808 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_remove [2022-11-02 20:22:20,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_remove [2022-11-02 20:22:20,822 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-02 20:22:20,822 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-02 20:22:20,823 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-02 20:22:20,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-02 20:22:20,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:22:20,823 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-02 20:22:20,824 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-02 20:22:20,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:22:20,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 20:22:20,824 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-02 20:22:20,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-02 20:22:20,825 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-02 20:22:20,825 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-02 20:22:20,825 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-02 20:22:20,825 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-02 20:22:20,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-02 20:22:20,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-02 20:22:20,826 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-02 20:22:20,826 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-02 20:22:20,826 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page0_reg [2022-11-02 20:22:20,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page0_reg [2022-11-02 20:22:20,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-02 20:22:20,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-02 20:22:20,827 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-02 20:22:20,828 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-02 20:22:20,828 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_link_full_dup [2022-11-02 20:22:20,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_link_full_dup [2022-11-02 20:22:20,828 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_open [2022-11-02 20:22:20,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_open [2022-11-02 20:22:20,829 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-02 20:22:20,829 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-02 20:22:20,829 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_tx_timeout [2022-11-02 20:22:20,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_tx_timeout [2022-11-02 20:22:20,830 INFO L130 BoogieDeclarations]: Found specification of procedure ql_supported_modes [2022-11-02 20:22:20,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_supported_modes [2022-11-02 20:22:20,830 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-02 20:22:20,830 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-02 20:22:20,831 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-02 20:22:20,831 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-02 20:22:20,831 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_fiber [2022-11-02 20:22:20,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_fiber [2022-11-02 20:22:20,831 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-02 20:22:20,832 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-02 20:22:20,832 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-02 20:22:20,832 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-02 20:22:20,832 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_net_req_rsp_queues [2022-11-02 20:22:20,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_net_req_rsp_queues [2022-11-02 20:22:20,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:22:20,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-02 20:22:20,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-02 20:22:20,834 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg_ex [2022-11-02 20:22:20,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg_ex [2022-11-02 20:22:20,834 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2022-11-02 20:22:20,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2022-11-02 20:22:20,834 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-02 20:22:20,835 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-02 20:22:20,835 INFO L130 BoogieDeclarations]: Found specification of procedure ql_port_start [2022-11-02 20:22:20,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_port_start [2022-11-02 20:22:20,835 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-02 20:22:20,836 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-02 20:22:20,836 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_auto_cfg_status [2022-11-02 20:22:20,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_auto_cfg_status [2022-11-02 20:22:20,836 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg [2022-11-02 20:22:20,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg [2022-11-02 20:22:20,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-02 20:22:20,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-02 20:22:20,837 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-02 20:22:20,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-02 20:22:20,837 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-02 20:22:20,838 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-02 20:22:20,838 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-02 20:22:20,838 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-02 20:22:20,838 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-02 20:22:20,839 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-02 20:22:20,839 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-02 20:22:20,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:22:20,839 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2022-11-02 20:22:20,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2022-11-02 20:22:20,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-02 20:22:20,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-02 20:22:22,210 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:22:22,215 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:22:22,548 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-02 20:22:29,083 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-02 20:22:29,365 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:22:29,402 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:22:29,402 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:22:29,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:22:29 BoogieIcfgContainer [2022-11-02 20:22:29,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:22:29,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:22:29,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:22:29,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:22:29,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:22:12" (1/3) ... [2022-11-02 20:22:29,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9d3a53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:22:29, skipping insertion in model container [2022-11-02 20:22:29,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:19" (2/3) ... [2022-11-02 20:22:29,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9d3a53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:22:29, skipping insertion in model container [2022-11-02 20:22:29,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:22:29" (3/3) ... [2022-11-02 20:22:29,423 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2022-11-02 20:22:29,448 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:22:29,448 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-02 20:22:29,576 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:22:29,583 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3895b10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:22:29,584 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-02 20:22:29,599 INFO L276 IsEmpty]: Start isEmpty. Operand has 2500 states, 1648 states have (on average 1.258495145631068) internal successors, (2074), 1699 states have internal predecessors, (2074), 714 states have call successors, (714), 136 states have call predecessors, (714), 135 states have return successors, (709), 694 states have call predecessors, (709), 709 states have call successors, (709) [2022-11-02 20:22:29,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-02 20:22:29,635 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:22:29,636 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:22:29,636 INFO L420 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)] === [2022-11-02 20:22:29,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:29,646 INFO L85 PathProgramCache]: Analyzing trace with hash 99291340, now seen corresponding path program 1 times [2022-11-02 20:22:29,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:29,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986223638] [2022-11-02 20:22:29,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:29,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:30,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:30,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:22:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:30,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:22:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:30,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:22:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:30,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:22:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:30,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:22:30,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:30,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:22:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:30,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:22:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:30,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:22:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:30,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-02 20:22:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:30,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:22:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:30,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 20:22:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:30,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:22:30,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:30,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-02 20:22:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:30,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:22:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:30,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 20:22:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:30,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:22:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:30,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 20:22:30,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:30,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-02 20:22:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:30,968 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-11-02 20:22:30,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:22:30,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986223638] [2022-11-02 20:22:30,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986223638] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:22:30,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:22:30,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:22:30,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966788915] [2022-11-02 20:22:30,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:22:30,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:22:30,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:22:31,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:22:31,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:22:31,041 INFO L87 Difference]: Start difference. First operand has 2500 states, 1648 states have (on average 1.258495145631068) internal successors, (2074), 1699 states have internal predecessors, (2074), 714 states have call successors, (714), 136 states have call predecessors, (714), 135 states have return successors, (709), 694 states have call predecessors, (709), 709 states have call successors, (709) Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-02 20:22:43,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:22:43,852 INFO L93 Difference]: Finished difference Result 8287 states and 11980 transitions. [2022-11-02 20:22:43,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:22:43,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 112 [2022-11-02 20:22:43,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:22:43,946 INFO L225 Difference]: With dead ends: 8287 [2022-11-02 20:22:43,946 INFO L226 Difference]: Without dead ends: 5798 [2022-11-02 20:22:43,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:22:43,984 INFO L413 NwaCegarLoop]: 3678 mSDtfsCounter, 5197 mSDsluCounter, 3047 mSDsCounter, 0 mSdLazyCounter, 3558 mSolverCounterSat, 2858 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5987 SdHoareTripleChecker+Valid, 6725 SdHoareTripleChecker+Invalid, 6416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2858 IncrementalHoareTripleChecker+Valid, 3558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:22:43,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5987 Valid, 6725 Invalid, 6416 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2858 Valid, 3558 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2022-11-02 20:22:44,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5798 states. [2022-11-02 20:22:44,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5798 to 4890. [2022-11-02 20:22:44,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4890 states, 3236 states have (on average 1.2533992583436342) internal successors, (4056), 3336 states have internal predecessors, (4056), 1384 states have call successors, (1384), 268 states have call predecessors, (1384), 267 states have return successors, (1381), 1351 states have call predecessors, (1381), 1381 states have call successors, (1381) [2022-11-02 20:22:44,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4890 states to 4890 states and 6821 transitions. [2022-11-02 20:22:44,542 INFO L78 Accepts]: Start accepts. Automaton has 4890 states and 6821 transitions. Word has length 112 [2022-11-02 20:22:44,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:22:44,547 INFO L495 AbstractCegarLoop]: Abstraction has 4890 states and 6821 transitions. [2022-11-02 20:22:44,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-02 20:22:44,548 INFO L276 IsEmpty]: Start isEmpty. Operand 4890 states and 6821 transitions. [2022-11-02 20:22:44,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-02 20:22:44,559 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:22:44,560 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:22:44,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:22:44,562 INFO L420 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)] === [2022-11-02 20:22:44,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:44,562 INFO L85 PathProgramCache]: Analyzing trace with hash 264932796, now seen corresponding path program 1 times [2022-11-02 20:22:44,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:44,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143028722] [2022-11-02 20:22:44,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:44,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:44,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:45,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:22:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:45,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:22:45,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:45,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:22:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:45,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:22:45,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:45,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:22:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:45,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:22:45,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:45,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:22:45,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:45,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:22:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:45,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-02 20:22:45,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:45,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:22:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:45,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 20:22:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:45,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:22:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:45,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-02 20:22:45,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:45,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:22:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:45,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 20:22:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:45,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:22:45,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:45,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 20:22:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:45,587 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-11-02 20:22:45,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:22:45,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143028722] [2022-11-02 20:22:45,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143028722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:22:45,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:22:45,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:22:45,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840655878] [2022-11-02 20:22:45,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:22:45,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:22:45,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:22:45,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:22:45,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:22:45,593 INFO L87 Difference]: Start difference. First operand 4890 states and 6821 transitions. Second operand has 7 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-02 20:23:04,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:23:04,414 INFO L93 Difference]: Finished difference Result 11607 states and 16141 transitions. [2022-11-02 20:23:04,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:23:04,419 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 117 [2022-11-02 20:23:04,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:23:04,474 INFO L225 Difference]: With dead ends: 11607 [2022-11-02 20:23:04,474 INFO L226 Difference]: Without dead ends: 6738 [2022-11-02 20:23:04,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:23:04,500 INFO L413 NwaCegarLoop]: 4043 mSDtfsCounter, 9640 mSDsluCounter, 5072 mSDsCounter, 0 mSdLazyCounter, 8404 mSolverCounterSat, 5888 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10617 SdHoareTripleChecker+Valid, 9115 SdHoareTripleChecker+Invalid, 14292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5888 IncrementalHoareTripleChecker+Valid, 8404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:23:04,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10617 Valid, 9115 Invalid, 14292 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5888 Valid, 8404 Invalid, 0 Unknown, 0 Unchecked, 17.8s Time] [2022-11-02 20:23:04,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6738 states. [2022-11-02 20:23:04,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6738 to 5900. [2022-11-02 20:23:04,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5900 states, 3936 states have (on average 1.2398373983739837) internal successors, (4880), 4036 states have internal predecessors, (4880), 1581 states have call successors, (1581), 381 states have call predecessors, (1581), 380 states have return successors, (1578), 1554 states have call predecessors, (1578), 1578 states have call successors, (1578) [2022-11-02 20:23:04,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5900 states to 5900 states and 8039 transitions. [2022-11-02 20:23:04,930 INFO L78 Accepts]: Start accepts. Automaton has 5900 states and 8039 transitions. Word has length 117 [2022-11-02 20:23:04,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:23:04,931 INFO L495 AbstractCegarLoop]: Abstraction has 5900 states and 8039 transitions. [2022-11-02 20:23:04,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-02 20:23:04,931 INFO L276 IsEmpty]: Start isEmpty. Operand 5900 states and 8039 transitions. [2022-11-02 20:23:04,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-02 20:23:04,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:23:04,942 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:04,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:23:04,942 INFO L420 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)] === [2022-11-02 20:23:04,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:04,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1281227428, now seen corresponding path program 1 times [2022-11-02 20:23:04,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:04,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713222605] [2022-11-02 20:23:04,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:04,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:05,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:05,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:23:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:05,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:05,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:23:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:05,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:05,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:05,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:23:05,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:05,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:05,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:23:05,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:05,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:05,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:05,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-02 20:23:05,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:05,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:05,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:05,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 20:23:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:05,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:05,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-02 20:23:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:05,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:05,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:05,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 20:23:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:05,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:05,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 20:23:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:05,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-02 20:23:05,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:05,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-02 20:23:05,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:05,521 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-11-02 20:23:05,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:05,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713222605] [2022-11-02 20:23:05,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713222605] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:05,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:05,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:23:05,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058465780] [2022-11-02 20:23:05,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:05,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:23:05,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:05,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:23:05,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:23:05,525 INFO L87 Difference]: Start difference. First operand 5900 states and 8039 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-02 20:23:16,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:23:16,180 INFO L93 Difference]: Finished difference Result 17328 states and 23904 transitions. [2022-11-02 20:23:16,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:23:16,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 120 [2022-11-02 20:23:16,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:23:16,268 INFO L225 Difference]: With dead ends: 17328 [2022-11-02 20:23:16,268 INFO L226 Difference]: Without dead ends: 11449 [2022-11-02 20:23:16,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:23:16,299 INFO L413 NwaCegarLoop]: 3960 mSDtfsCounter, 4889 mSDsluCounter, 3096 mSDsCounter, 0 mSdLazyCounter, 3314 mSolverCounterSat, 2727 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5616 SdHoareTripleChecker+Valid, 7056 SdHoareTripleChecker+Invalid, 6041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2727 IncrementalHoareTripleChecker+Valid, 3314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-02 20:23:16,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5616 Valid, 7056 Invalid, 6041 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2727 Valid, 3314 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2022-11-02 20:23:16,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11449 states. [2022-11-02 20:23:16,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11449 to 10062. [2022-11-02 20:23:16,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10062 states, 6714 states have (on average 1.241733690795353) internal successors, (8337), 6893 states have internal predecessors, (8337), 2689 states have call successors, (2689), 664 states have call predecessors, (2689), 656 states have return successors, (2705), 2625 states have call predecessors, (2705), 2686 states have call successors, (2705) [2022-11-02 20:23:17,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10062 states to 10062 states and 13731 transitions. [2022-11-02 20:23:17,218 INFO L78 Accepts]: Start accepts. Automaton has 10062 states and 13731 transitions. Word has length 120 [2022-11-02 20:23:17,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:23:17,219 INFO L495 AbstractCegarLoop]: Abstraction has 10062 states and 13731 transitions. [2022-11-02 20:23:17,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-02 20:23:17,220 INFO L276 IsEmpty]: Start isEmpty. Operand 10062 states and 13731 transitions. [2022-11-02 20:23:17,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-02 20:23:17,223 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:23:17,224 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:17,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:23:17,224 INFO L420 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)] === [2022-11-02 20:23:17,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:17,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1222009648, now seen corresponding path program 1 times [2022-11-02 20:23:17,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:17,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928334131] [2022-11-02 20:23:17,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:17,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:17,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:23:17,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:17,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:17,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:17,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:23:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:17,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:17,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:23:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:17,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:17,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:23:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:17,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:17,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-02 20:23:17,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:17,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:17,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:17,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 20:23:17,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:17,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:17,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:17,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-02 20:23:17,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:17,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:17,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 20:23:17,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:17,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:17,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 20:23:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:17,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-02 20:23:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:17,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-02 20:23:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:17,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:23:17,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:17,697 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-11-02 20:23:17,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:17,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928334131] [2022-11-02 20:23:17,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928334131] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:17,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:17,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:23:17,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906923717] [2022-11-02 20:23:17,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:17,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:23:17,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:17,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:23:17,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:23:17,701 INFO L87 Difference]: Start difference. First operand 10062 states and 13731 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-02 20:23:39,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:23:39,650 INFO L93 Difference]: Finished difference Result 32340 states and 47317 transitions. [2022-11-02 20:23:39,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:23:39,651 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 135 [2022-11-02 20:23:39,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:23:39,927 INFO L225 Difference]: With dead ends: 32340 [2022-11-02 20:23:39,927 INFO L226 Difference]: Without dead ends: 22299 [2022-11-02 20:23:39,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:23:39,978 INFO L413 NwaCegarLoop]: 3715 mSDtfsCounter, 7578 mSDsluCounter, 4144 mSDsCounter, 0 mSdLazyCounter, 6770 mSolverCounterSat, 6606 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8309 SdHoareTripleChecker+Valid, 7859 SdHoareTripleChecker+Invalid, 13376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6606 IncrementalHoareTripleChecker+Valid, 6770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:23:39,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8309 Valid, 7859 Invalid, 13376 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6606 Valid, 6770 Invalid, 0 Unknown, 0 Unchecked, 20.4s Time] [2022-11-02 20:23:40,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22299 states. [2022-11-02 20:23:41,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22299 to 16524. [2022-11-02 20:23:41,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16524 states, 10901 states have (on average 1.2397945142647464) internal successors, (13515), 11258 states have internal predecessors, (13515), 4570 states have call successors, (4570), 1055 states have call predecessors, (4570), 1050 states have return successors, (4647), 4446 states have call predecessors, (4647), 4567 states have call successors, (4647) [2022-11-02 20:23:41,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16524 states to 16524 states and 22732 transitions. [2022-11-02 20:23:41,647 INFO L78 Accepts]: Start accepts. Automaton has 16524 states and 22732 transitions. Word has length 135 [2022-11-02 20:23:41,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:23:41,648 INFO L495 AbstractCegarLoop]: Abstraction has 16524 states and 22732 transitions. [2022-11-02 20:23:41,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-02 20:23:41,648 INFO L276 IsEmpty]: Start isEmpty. Operand 16524 states and 22732 transitions. [2022-11-02 20:23:41,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-02 20:23:41,651 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:23:41,651 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-11-02 20:23:41,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:23:41,652 INFO L420 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)] === [2022-11-02 20:23:41,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:41,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1610791070, now seen corresponding path program 1 times [2022-11-02 20:23:41,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:41,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365819521] [2022-11-02 20:23:41,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:41,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:41,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:23:42,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:23:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:42,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:23:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:23:42,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-02 20:23:42,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:42,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 20:23:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:42,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-02 20:23:42,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 20:23:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 20:23:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-02 20:23:42,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:23:42,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-02 20:23:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-02 20:23:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:42,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-02 20:23:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-02 20:23:42,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-02 20:23:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,494 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-11-02 20:23:42,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:42,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365819521] [2022-11-02 20:23:42,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365819521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:42,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:42,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:23:42,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85402053] [2022-11-02 20:23:42,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:42,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:23:42,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:42,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:23:42,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:23:42,499 INFO L87 Difference]: Start difference. First operand 16524 states and 22732 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-02 20:23:51,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:23:51,520 INFO L93 Difference]: Finished difference Result 18630 states and 26014 transitions. [2022-11-02 20:23:51,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:23:51,520 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 164 [2022-11-02 20:23:51,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:23:51,639 INFO L225 Difference]: With dead ends: 18630 [2022-11-02 20:23:51,640 INFO L226 Difference]: Without dead ends: 18628 [2022-11-02 20:23:51,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:23:51,658 INFO L413 NwaCegarLoop]: 3206 mSDtfsCounter, 4060 mSDsluCounter, 4960 mSDsCounter, 0 mSdLazyCounter, 4430 mSolverCounterSat, 2042 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4481 SdHoareTripleChecker+Valid, 8166 SdHoareTripleChecker+Invalid, 6472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2042 IncrementalHoareTripleChecker+Valid, 4430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:23:51,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4481 Valid, 8166 Invalid, 6472 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2042 Valid, 4430 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-11-02 20:23:51,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18628 states. [2022-11-02 20:23:52,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18628 to 16528. [2022-11-02 20:23:52,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16528 states, 10904 states have (on average 1.2397285399853264) internal successors, (13518), 11261 states have internal predecessors, (13518), 4570 states have call successors, (4570), 1056 states have call predecessors, (4570), 1051 states have return successors, (4647), 4446 states have call predecessors, (4647), 4567 states have call successors, (4647) [2022-11-02 20:23:53,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16528 states to 16528 states and 22735 transitions. [2022-11-02 20:23:53,018 INFO L78 Accepts]: Start accepts. Automaton has 16528 states and 22735 transitions. Word has length 164 [2022-11-02 20:23:53,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:23:53,019 INFO L495 AbstractCegarLoop]: Abstraction has 16528 states and 22735 transitions. [2022-11-02 20:23:53,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-02 20:23:53,020 INFO L276 IsEmpty]: Start isEmpty. Operand 16528 states and 22735 transitions. [2022-11-02 20:23:53,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-11-02 20:23:53,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:23:53,023 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:53,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:23:53,024 INFO L420 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)] === [2022-11-02 20:23:53,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:53,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1950506016, now seen corresponding path program 1 times [2022-11-02 20:23:53,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:53,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031112467] [2022-11-02 20:23:53,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:53,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:53,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:23:53,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:23:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:53,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:23:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:53,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:23:53,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:53,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-02 20:23:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 20:23:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-02 20:23:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 20:23:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:53,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 20:23:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-02 20:23:53,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:23:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-02 20:23:53,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-02 20:23:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:23:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-02 20:23:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-02 20:23:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-02 20:23:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-02 20:23:53,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:53,963 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-11-02 20:23:53,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:53,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031112467] [2022-11-02 20:23:53,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031112467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:53,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:53,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:23:53,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976093154] [2022-11-02 20:23:53,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:53,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:23:53,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:53,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:23:53,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:23:53,966 INFO L87 Difference]: Start difference. First operand 16528 states and 22735 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-02 20:24:03,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:03,773 INFO L93 Difference]: Finished difference Result 19173 states and 26580 transitions. [2022-11-02 20:24:03,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:24:03,774 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 169 [2022-11-02 20:24:03,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:03,891 INFO L225 Difference]: With dead ends: 19173 [2022-11-02 20:24:03,891 INFO L226 Difference]: Without dead ends: 19171 [2022-11-02 20:24:03,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:24:03,906 INFO L413 NwaCegarLoop]: 3222 mSDtfsCounter, 4087 mSDsluCounter, 4986 mSDsCounter, 0 mSdLazyCounter, 4647 mSolverCounterSat, 2060 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4520 SdHoareTripleChecker+Valid, 8208 SdHoareTripleChecker+Invalid, 6707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2060 IncrementalHoareTripleChecker+Valid, 4647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:03,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4520 Valid, 8208 Invalid, 6707 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2060 Valid, 4647 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-11-02 20:24:03,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19171 states. [2022-11-02 20:24:05,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19171 to 17067. [2022-11-02 20:24:05,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17067 states, 11222 states have (on average 1.235073961860631) internal successors, (13860), 11591 states have internal predecessors, (13860), 4681 states have call successors, (4681), 1166 states have call predecessors, (4681), 1161 states have return successors, (4758), 4557 states have call predecessors, (4758), 4678 states have call successors, (4758) [2022-11-02 20:24:05,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17067 states to 17067 states and 23299 transitions. [2022-11-02 20:24:05,537 INFO L78 Accepts]: Start accepts. Automaton has 17067 states and 23299 transitions. Word has length 169 [2022-11-02 20:24:05,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:05,538 INFO L495 AbstractCegarLoop]: Abstraction has 17067 states and 23299 transitions. [2022-11-02 20:24:05,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-02 20:24:05,539 INFO L276 IsEmpty]: Start isEmpty. Operand 17067 states and 23299 transitions. [2022-11-02 20:24:05,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-02 20:24:05,542 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:05,542 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 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] [2022-11-02 20:24:05,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:24:05,543 INFO L420 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)] === [2022-11-02 20:24:05,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:05,544 INFO L85 PathProgramCache]: Analyzing trace with hash 860074398, now seen corresponding path program 1 times [2022-11-02 20:24:05,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:05,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726931856] [2022-11-02 20:24:05,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:05,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:05,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:24:06,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:06,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:24:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:06,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:24:06,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:24:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-02 20:24:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 20:24:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-02 20:24:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 20:24:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 20:24:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-02 20:24:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:24:06,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-02 20:24:06,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-02 20:24:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:06,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-02 20:24:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-02 20:24:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-02 20:24:06,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-02 20:24:06,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-02 20:24:06,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:06,303 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-11-02 20:24:06,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:06,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726931856] [2022-11-02 20:24:06,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726931856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:06,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:06,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:24:06,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504265893] [2022-11-02 20:24:06,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:06,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:24:06,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:06,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:24:06,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:24:06,307 INFO L87 Difference]: Start difference. First operand 17067 states and 23299 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-11-02 20:24:16,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:16,331 INFO L93 Difference]: Finished difference Result 19173 states and 26581 transitions. [2022-11-02 20:24:16,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:24:16,331 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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 174 [2022-11-02 20:24:16,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:16,429 INFO L225 Difference]: With dead ends: 19173 [2022-11-02 20:24:16,430 INFO L226 Difference]: Without dead ends: 19171 [2022-11-02 20:24:16,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:24:16,443 INFO L413 NwaCegarLoop]: 3204 mSDtfsCounter, 4057 mSDsluCounter, 4950 mSDsCounter, 0 mSdLazyCounter, 4427 mSolverCounterSat, 2041 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4478 SdHoareTripleChecker+Valid, 8154 SdHoareTripleChecker+Invalid, 6468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2041 IncrementalHoareTripleChecker+Valid, 4427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:16,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4478 Valid, 8154 Invalid, 6468 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2041 Valid, 4427 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-11-02 20:24:16,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19171 states. [2022-11-02 20:24:17,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19171 to 17071. [2022-11-02 20:24:17,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17071 states, 11225 states have (on average 1.235011135857461) internal successors, (13863), 11594 states have internal predecessors, (13863), 4681 states have call successors, (4681), 1167 states have call predecessors, (4681), 1162 states have return successors, (4758), 4557 states have call predecessors, (4758), 4678 states have call successors, (4758) [2022-11-02 20:24:17,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17071 states to 17071 states and 23302 transitions. [2022-11-02 20:24:17,951 INFO L78 Accepts]: Start accepts. Automaton has 17071 states and 23302 transitions. Word has length 174 [2022-11-02 20:24:17,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:17,952 INFO L495 AbstractCegarLoop]: Abstraction has 17071 states and 23302 transitions. [2022-11-02 20:24:17,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-11-02 20:24:17,953 INFO L276 IsEmpty]: Start isEmpty. Operand 17071 states and 23302 transitions. [2022-11-02 20:24:17,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-02 20:24:17,956 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:17,957 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 3, 3, 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] [2022-11-02 20:24:17,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:24:17,957 INFO L420 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)] === [2022-11-02 20:24:17,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:17,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1880149344, now seen corresponding path program 1 times [2022-11-02 20:24:17,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:17,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120635009] [2022-11-02 20:24:17,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:17,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:24:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:24:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:24:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:18,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:24:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:18,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-02 20:24:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:18,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 20:24:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-02 20:24:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:18,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 20:24:18,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:18,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 20:24:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-02 20:24:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:24:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-02 20:24:18,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-02 20:24:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:18,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-02 20:24:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-02 20:24:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-02 20:24:18,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-02 20:24:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-02 20:24:18,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-02 20:24:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,746 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2022-11-02 20:24:18,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:18,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120635009] [2022-11-02 20:24:18,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120635009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:18,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:18,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:24:18,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859968978] [2022-11-02 20:24:18,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:18,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:24:18,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:18,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:24:18,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:24:18,750 INFO L87 Difference]: Start difference. First operand 17071 states and 23302 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-11-02 20:24:28,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:28,905 INFO L93 Difference]: Finished difference Result 19177 states and 26584 transitions. [2022-11-02 20:24:28,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:24:28,906 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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 179 [2022-11-02 20:24:28,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:28,997 INFO L225 Difference]: With dead ends: 19177 [2022-11-02 20:24:28,997 INFO L226 Difference]: Without dead ends: 19175 [2022-11-02 20:24:29,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:24:29,011 INFO L413 NwaCegarLoop]: 3207 mSDtfsCounter, 4053 mSDsluCounter, 4955 mSDsCounter, 0 mSdLazyCounter, 4430 mSolverCounterSat, 2039 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4475 SdHoareTripleChecker+Valid, 8162 SdHoareTripleChecker+Invalid, 6469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2039 IncrementalHoareTripleChecker+Valid, 4430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:29,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4475 Valid, 8162 Invalid, 6469 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2039 Valid, 4430 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2022-11-02 20:24:29,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19175 states. [2022-11-02 20:24:30,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19175 to 17075. [2022-11-02 20:24:30,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17075 states, 11228 states have (on average 1.2349483434271464) internal successors, (13866), 11597 states have internal predecessors, (13866), 4681 states have call successors, (4681), 1168 states have call predecessors, (4681), 1163 states have return successors, (4758), 4557 states have call predecessors, (4758), 4678 states have call successors, (4758) [2022-11-02 20:24:30,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17075 states to 17075 states and 23305 transitions. [2022-11-02 20:24:30,415 INFO L78 Accepts]: Start accepts. Automaton has 17075 states and 23305 transitions. Word has length 179 [2022-11-02 20:24:30,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:30,416 INFO L495 AbstractCegarLoop]: Abstraction has 17075 states and 23305 transitions. [2022-11-02 20:24:30,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-11-02 20:24:30,417 INFO L276 IsEmpty]: Start isEmpty. Operand 17075 states and 23305 transitions. [2022-11-02 20:24:30,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-02 20:24:30,421 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:30,421 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 5, 4, 4, 4, 4, 4, 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] [2022-11-02 20:24:30,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:24:30,422 INFO L420 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)] === [2022-11-02 20:24:30,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:30,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1965876578, now seen corresponding path program 1 times [2022-11-02 20:24:30,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:30,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279331192] [2022-11-02 20:24:30,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:30,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:30,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:24:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:30,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:30,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:24:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:30,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:30,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:30,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:24:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:30,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:30,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:24:30,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:31,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:31,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:31,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-02 20:24:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:31,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:31,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 20:24:31,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:31,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:31,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-02 20:24:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:31,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:31,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:31,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 20:24:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:31,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:31,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:31,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 20:24:31,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:31,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-02 20:24:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:31,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:24:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:31,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-02 20:24:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:31,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-02 20:24:31,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:31,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:31,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:31,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-02 20:24:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:31,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-02 20:24:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:31,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-02 20:24:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:31,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-02 20:24:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:31,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-02 20:24:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:31,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-02 20:24:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:31,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-02 20:24:31,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:31,227 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2022-11-02 20:24:31,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:31,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279331192] [2022-11-02 20:24:31,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279331192] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:31,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:31,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:24:31,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789850968] [2022-11-02 20:24:31,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:31,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:24:31,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:31,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:24:31,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:24:31,230 INFO L87 Difference]: Start difference. First operand 17075 states and 23305 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-11-02 20:24:41,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:41,442 INFO L93 Difference]: Finished difference Result 19575 states and 26927 transitions. [2022-11-02 20:24:41,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:24:41,444 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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 184 [2022-11-02 20:24:41,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:41,525 INFO L225 Difference]: With dead ends: 19575 [2022-11-02 20:24:41,525 INFO L226 Difference]: Without dead ends: 19573 [2022-11-02 20:24:41,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:24:41,538 INFO L413 NwaCegarLoop]: 3236 mSDtfsCounter, 2956 mSDsluCounter, 5702 mSDsCounter, 0 mSdLazyCounter, 5210 mSolverCounterSat, 1481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3360 SdHoareTripleChecker+Valid, 8938 SdHoareTripleChecker+Invalid, 6691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1481 IncrementalHoareTripleChecker+Valid, 5210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:41,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3360 Valid, 8938 Invalid, 6691 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1481 Valid, 5210 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-11-02 20:24:41,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19573 states. [2022-11-02 20:24:43,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19573 to 17471. [2022-11-02 20:24:43,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17471 states, 11484 states have (on average 1.2309299895506791) internal successors, (14136), 11861 states have internal predecessors, (14136), 4717 states have call successors, (4717), 1272 states have call predecessors, (4717), 1267 states have return successors, (4794), 4593 states have call predecessors, (4794), 4714 states have call successors, (4794) [2022-11-02 20:24:43,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17471 states to 17471 states and 23647 transitions. [2022-11-02 20:24:43,144 INFO L78 Accepts]: Start accepts. Automaton has 17471 states and 23647 transitions. Word has length 184 [2022-11-02 20:24:43,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:43,145 INFO L495 AbstractCegarLoop]: Abstraction has 17471 states and 23647 transitions. [2022-11-02 20:24:43,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-11-02 20:24:43,145 INFO L276 IsEmpty]: Start isEmpty. Operand 17471 states and 23647 transitions. [2022-11-02 20:24:43,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-02 20:24:43,151 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:43,151 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 6, 5, 5, 4, 4, 4, 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] [2022-11-02 20:24:43,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:24:43,152 INFO L420 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)] === [2022-11-02 20:24:43,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:43,153 INFO L85 PathProgramCache]: Analyzing trace with hash -959211232, now seen corresponding path program 1 times [2022-11-02 20:24:43,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:43,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299960009] [2022-11-02 20:24:43,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:43,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:43,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:24:43,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:43,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:43,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:24:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:43,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:43,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:24:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:43,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:43,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:24:43,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:43,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:43,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:43,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-02 20:24:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:43,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:43,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:43,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 20:24:43,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:43,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:43,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-02 20:24:43,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:43,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:43,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:43,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 20:24:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:43,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:43,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:43,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 20:24:43,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:43,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-02 20:24:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:43,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:24:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:43,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-02 20:24:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:43,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-02 20:24:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:43,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:43,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-02 20:24:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:44,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-02 20:24:44,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:44,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-02 20:24:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:44,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-02 20:24:44,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:44,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-02 20:24:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:44,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-02 20:24:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:44,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-02 20:24:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:44,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-02 20:24:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:44,080 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-11-02 20:24:44,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:44,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299960009] [2022-11-02 20:24:44,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299960009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:44,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:44,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:24:44,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373177214] [2022-11-02 20:24:44,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:44,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:24:44,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:44,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:24:44,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:24:44,084 INFO L87 Difference]: Start difference. First operand 17471 states and 23647 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-11-02 20:24:54,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:54,466 INFO L93 Difference]: Finished difference Result 19577 states and 26929 transitions. [2022-11-02 20:24:54,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:24:54,467 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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 189 [2022-11-02 20:24:54,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:54,549 INFO L225 Difference]: With dead ends: 19577 [2022-11-02 20:24:54,549 INFO L226 Difference]: Without dead ends: 19575 [2022-11-02 20:24:54,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:24:54,560 INFO L413 NwaCegarLoop]: 3208 mSDtfsCounter, 4053 mSDsluCounter, 4958 mSDsCounter, 0 mSdLazyCounter, 4430 mSolverCounterSat, 2037 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4474 SdHoareTripleChecker+Valid, 8166 SdHoareTripleChecker+Invalid, 6467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2037 IncrementalHoareTripleChecker+Valid, 4430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:54,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4474 Valid, 8166 Invalid, 6467 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2037 Valid, 4430 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-11-02 20:24:54,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19575 states. [2022-11-02 20:24:55,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19575 to 17475. [2022-11-02 20:24:55,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17475 states, 11487 states have (on average 1.2308696787673021) internal successors, (14139), 11864 states have internal predecessors, (14139), 4717 states have call successors, (4717), 1273 states have call predecessors, (4717), 1268 states have return successors, (4794), 4593 states have call predecessors, (4794), 4714 states have call successors, (4794) [2022-11-02 20:24:56,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17475 states to 17475 states and 23650 transitions. [2022-11-02 20:24:56,051 INFO L78 Accepts]: Start accepts. Automaton has 17475 states and 23650 transitions. Word has length 189 [2022-11-02 20:24:56,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:56,052 INFO L495 AbstractCegarLoop]: Abstraction has 17475 states and 23650 transitions. [2022-11-02 20:24:56,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-11-02 20:24:56,053 INFO L276 IsEmpty]: Start isEmpty. Operand 17475 states and 23650 transitions. [2022-11-02 20:24:56,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-02 20:24:56,058 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:56,058 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 7, 6, 6, 4, 4, 4, 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] [2022-11-02 20:24:56,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:24:56,059 INFO L420 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)] === [2022-11-02 20:24:56,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:56,060 INFO L85 PathProgramCache]: Analyzing trace with hash -345705570, now seen corresponding path program 1 times [2022-11-02 20:24:56,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:56,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547296147] [2022-11-02 20:24:56,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:56,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:56,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:24:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:56,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:56,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:56,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:24:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:56,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:56,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:24:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:56,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:56,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:56,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:24:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:56,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:56,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:56,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-02 20:24:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:56,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:56,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:56,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 20:24:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:56,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:56,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-02 20:24:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:56,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:56,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 20:24:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:56,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:56,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:56,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 20:24:56,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:56,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-02 20:24:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:56,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:24:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:56,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-02 20:24:56,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:56,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-02 20:24:56,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:57,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:24:57,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:57,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-02 20:24:57,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:57,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-02 20:24:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:57,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-02 20:24:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:57,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-02 20:24:57,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:57,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-02 20:24:57,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:57,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-02 20:24:57,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:57,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-02 20:24:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:57,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-02 20:24:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:57,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-02 20:24:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:57,110 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2022-11-02 20:24:57,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:57,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547296147] [2022-11-02 20:24:57,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547296147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:57,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:57,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:24:57,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489894302] [2022-11-02 20:24:57,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:57,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:24:57,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:57,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:24:57,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:24:57,115 INFO L87 Difference]: Start difference. First operand 17475 states and 23650 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-11-02 20:25:07,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:25:07,697 INFO L93 Difference]: Finished difference Result 19581 states and 26932 transitions. [2022-11-02 20:25:07,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:25:07,697 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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 194 [2022-11-02 20:25:07,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:25:07,769 INFO L225 Difference]: With dead ends: 19581 [2022-11-02 20:25:07,769 INFO L226 Difference]: Without dead ends: 19579 [2022-11-02 20:25:07,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:25:07,776 INFO L413 NwaCegarLoop]: 3206 mSDtfsCounter, 4053 mSDsluCounter, 4952 mSDsCounter, 0 mSdLazyCounter, 4430 mSolverCounterSat, 2036 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4476 SdHoareTripleChecker+Valid, 8158 SdHoareTripleChecker+Invalid, 6466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2036 IncrementalHoareTripleChecker+Valid, 4430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:25:07,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4476 Valid, 8158 Invalid, 6466 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2036 Valid, 4430 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-11-02 20:25:07,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19579 states. [2022-11-02 20:25:09,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19579 to 17479. [2022-11-02 20:25:09,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17479 states, 11490 states have (on average 1.2308093994778069) internal successors, (14142), 11867 states have internal predecessors, (14142), 4717 states have call successors, (4717), 1274 states have call predecessors, (4717), 1269 states have return successors, (4794), 4593 states have call predecessors, (4794), 4714 states have call successors, (4794) [2022-11-02 20:25:09,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17479 states to 17479 states and 23653 transitions. [2022-11-02 20:25:09,145 INFO L78 Accepts]: Start accepts. Automaton has 17479 states and 23653 transitions. Word has length 194 [2022-11-02 20:25:09,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:25:09,146 INFO L495 AbstractCegarLoop]: Abstraction has 17479 states and 23653 transitions. [2022-11-02 20:25:09,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-11-02 20:25:09,147 INFO L276 IsEmpty]: Start isEmpty. Operand 17479 states and 23653 transitions. [2022-11-02 20:25:09,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-02 20:25:09,151 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:25:09,152 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 8, 7, 7, 4, 4, 4, 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] [2022-11-02 20:25:09,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:25:09,152 INFO L420 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)] === [2022-11-02 20:25:09,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:25:09,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1690013600, now seen corresponding path program 1 times [2022-11-02 20:25:09,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:25:09,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988890138] [2022-11-02 20:25:09,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:25:09,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:25:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:25:09,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:25:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:25:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:25:09,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:25:09,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:25:09,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:25:09,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:25:09,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-02 20:25:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:25:09,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 20:25:09,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:25:09,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-02 20:25:09,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:25:09,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 20:25:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:25:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 20:25:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-02 20:25:09,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:25:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-02 20:25:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-02 20:25:09,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:25:09,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-02 20:25:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-02 20:25:09,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-02 20:25:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-02 20:25:09,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-02 20:25:09,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-02 20:25:09,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-02 20:25:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:09,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-02 20:25:09,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:10,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-02 20:25:10,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:10,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-02 20:25:10,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:10,026 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2022-11-02 20:25:10,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:25:10,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988890138] [2022-11-02 20:25:10,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988890138] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:25:10,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:25:10,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:25:10,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531015751] [2022-11-02 20:25:10,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:25:10,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:25:10,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:25:10,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:25:10,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:25:10,030 INFO L87 Difference]: Start difference. First operand 17479 states and 23653 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-11-02 20:25:20,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:25:20,431 INFO L93 Difference]: Finished difference Result 19585 states and 26935 transitions. [2022-11-02 20:25:20,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:25:20,432 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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 199 [2022-11-02 20:25:20,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:25:20,493 INFO L225 Difference]: With dead ends: 19585 [2022-11-02 20:25:20,493 INFO L226 Difference]: Without dead ends: 19583 [2022-11-02 20:25:20,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:25:20,502 INFO L413 NwaCegarLoop]: 3209 mSDtfsCounter, 4052 mSDsluCounter, 4960 mSDsCounter, 0 mSdLazyCounter, 4430 mSolverCounterSat, 2035 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4473 SdHoareTripleChecker+Valid, 8169 SdHoareTripleChecker+Invalid, 6465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2035 IncrementalHoareTripleChecker+Valid, 4430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:25:20,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4473 Valid, 8169 Invalid, 6465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2035 Valid, 4430 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-11-02 20:25:20,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19583 states. [2022-11-02 20:25:22,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19583 to 17483. [2022-11-02 20:25:22,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17483 states, 11493 states have (on average 1.2307491516575306) internal successors, (14145), 11870 states have internal predecessors, (14145), 4717 states have call successors, (4717), 1275 states have call predecessors, (4717), 1270 states have return successors, (4794), 4593 states have call predecessors, (4794), 4714 states have call successors, (4794) [2022-11-02 20:25:22,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17483 states to 17483 states and 23656 transitions. [2022-11-02 20:25:22,327 INFO L78 Accepts]: Start accepts. Automaton has 17483 states and 23656 transitions. Word has length 199 [2022-11-02 20:25:22,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:25:22,327 INFO L495 AbstractCegarLoop]: Abstraction has 17483 states and 23656 transitions. [2022-11-02 20:25:22,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-11-02 20:25:22,328 INFO L276 IsEmpty]: Start isEmpty. Operand 17483 states and 23656 transitions. [2022-11-02 20:25:22,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-02 20:25:22,332 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:25:22,333 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 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] [2022-11-02 20:25:22,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:25:22,333 INFO L420 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)] === [2022-11-02 20:25:22,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:25:22,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1954249895, now seen corresponding path program 1 times [2022-11-02 20:25:22,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:25:22,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506572489] [2022-11-02 20:25:22,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:25:22,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:25:22,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:25:22,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:25:22,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:25:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:25:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:25:22,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:25:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:25:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:25:22,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-02 20:25:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:25:22,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 20:25:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:25:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-02 20:25:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:25:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 20:25:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:25:22,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 20:25:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-02 20:25:22,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:25:22,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-02 20:25:22,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-02 20:25:22,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:25:22,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-02 20:25:22,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-02 20:25:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-02 20:25:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-02 20:25:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-02 20:25:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-02 20:25:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-02 20:25:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-11-02 20:25:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-02 20:25:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-11-02 20:25:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-02 20:25:22,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-11-02 20:25:22,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-11-02 20:25:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:22,840 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2022-11-02 20:25:22,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:25:22,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506572489] [2022-11-02 20:25:22,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506572489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:25:22,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:25:22,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:25:22,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084130800] [2022-11-02 20:25:22,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:25:22,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:25:22,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:25:22,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:25:22,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:25:22,844 INFO L87 Difference]: Start difference. First operand 17483 states and 23656 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, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28)