./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295719b3-0a7e-4d60-a8d3-527fa738582e/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295719b3-0a7e-4d60-a8d3-527fa738582e/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295719b3-0a7e-4d60-a8d3-527fa738582e/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295719b3-0a7e-4d60-a8d3-527fa738582e/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295719b3-0a7e-4d60-a8d3-527fa738582e/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295719b3-0a7e-4d60-a8d3-527fa738582e/bin/uautomizer-DQz5hQGWxF --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 52f53de973aa03e2a9eaadeeb26ce30c3104ed671c54a416d14fc4c2bdab8bd9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:29:16,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:29:16,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:29:16,884 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:29:16,885 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:29:16,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:29:16,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:29:16,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:29:16,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:29:16,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:29:16,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:29:16,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:29:16,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:29:16,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:29:16,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:29:16,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:29:16,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:29:16,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:29:16,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:29:16,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:29:16,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:29:16,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:29:16,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:29:16,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:29:16,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:29:16,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:29:16,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:29:16,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:29:16,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:29:16,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:29:16,974 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:29:16,975 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:29:16,978 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:29:16,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:29:16,982 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:29:16,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:29:16,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:29:16,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:29:16,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:29:16,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:29:16,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:29:16,988 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295719b3-0a7e-4d60-a8d3-527fa738582e/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-20 07:29:17,045 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:29:17,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:29:17,047 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:29:17,047 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:29:17,056 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:29:17,057 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:29:17,058 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:29:17,058 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:29:17,058 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:29:17,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:29:17,060 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:29:17,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:29:17,061 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:29:17,061 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:29:17,061 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:29:17,062 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:29:17,062 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:29:17,062 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:29:17,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:29:17,063 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:29:17,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:29:17,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:29:17,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:29:17,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:29:17,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:29:17,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:29:17,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:29:17,065 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:29:17,065 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:29:17,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:29:17,068 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:29:17,068 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_295719b3-0a7e-4d60-a8d3-527fa738582e/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295719b3-0a7e-4d60-a8d3-527fa738582e/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52f53de973aa03e2a9eaadeeb26ce30c3104ed671c54a416d14fc4c2bdab8bd9 [2021-11-20 07:29:17,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:29:17,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:29:17,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:29:17,478 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:29:17,479 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:29:17,480 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295719b3-0a7e-4d60-a8d3-527fa738582e/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-20 07:29:17,567 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295719b3-0a7e-4d60-a8d3-527fa738582e/bin/uautomizer-DQz5hQGWxF/data/4d0202b04/2b742eae5685436e830c0e21d4960a16/FLAG5854c9f08 [2021-11-20 07:29:18,848 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:29:18,849 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295719b3-0a7e-4d60-a8d3-527fa738582e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-20 07:29:18,953 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295719b3-0a7e-4d60-a8d3-527fa738582e/bin/uautomizer-DQz5hQGWxF/data/4d0202b04/2b742eae5685436e830c0e21d4960a16/FLAG5854c9f08 [2021-11-20 07:29:19,450 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295719b3-0a7e-4d60-a8d3-527fa738582e/bin/uautomizer-DQz5hQGWxF/data/4d0202b04/2b742eae5685436e830c0e21d4960a16 [2021-11-20 07:29:19,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:29:19,454 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:29:19,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:29:19,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:29:19,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:29:19,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:29:19" (1/1) ... [2021-11-20 07:29:19,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46c66d0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:19, skipping insertion in model container [2021-11-20 07:29:19,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:29:19" (1/1) ... [2021-11-20 07:29:19,485 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:29:19,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:29:25,577 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_295719b3-0a7e-4d60-a8d3-527fa738582e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[479863,479876] [2021-11-20 07:29:25,581 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_295719b3-0a7e-4d60-a8d3-527fa738582e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480032,480045] [2021-11-20 07:29:25,584 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_295719b3-0a7e-4d60-a8d3-527fa738582e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480199,480212] [2021-11-20 07:29:25,592 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_295719b3-0a7e-4d60-a8d3-527fa738582e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480367,480380] [2021-11-20 07:29:25,639 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:29:25,708 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:29:26,427 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_295719b3-0a7e-4d60-a8d3-527fa738582e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[479863,479876] [2021-11-20 07:29:26,429 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_295719b3-0a7e-4d60-a8d3-527fa738582e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480032,480045] [2021-11-20 07:29:26,430 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_295719b3-0a7e-4d60-a8d3-527fa738582e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480199,480212] [2021-11-20 07:29:26,479 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_295719b3-0a7e-4d60-a8d3-527fa738582e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480367,480380] [2021-11-20 07:29:26,489 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:29:26,809 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:29:26,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:26 WrapperNode [2021-11-20 07:29:26,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:29:26,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:29:26,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:29:26,812 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:29:26,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:26" (1/1) ... [2021-11-20 07:29:27,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:26" (1/1) ... [2021-11-20 07:29:27,581 INFO L137 Inliner]: procedures = 544, calls = 4122, calls flagged for inlining = 248, calls inlined = 231, statements flattened = 8578 [2021-11-20 07:29:27,582 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:29:27,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:29:27,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:29:27,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:29:27,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:26" (1/1) ... [2021-11-20 07:29:27,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:26" (1/1) ... [2021-11-20 07:29:27,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:26" (1/1) ... [2021-11-20 07:29:27,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:26" (1/1) ... [2021-11-20 07:29:28,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:26" (1/1) ... [2021-11-20 07:29:28,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:26" (1/1) ... [2021-11-20 07:29:28,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:26" (1/1) ... [2021-11-20 07:29:28,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:29:28,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:29:28,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:29:28,160 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:29:28,161 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:26" (1/1) ... [2021-11-20 07:29:28,183 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:29:28,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295719b3-0a7e-4d60-a8d3-527fa738582e/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:28,234 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295719b3-0a7e-4d60-a8d3-527fa738582e/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:28,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295719b3-0a7e-4d60-a8d3-527fa738582e/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:29:28,407 INFO L130 BoogieDeclarations]: Found specification of procedure disable_ast [2021-11-20 07:29:28,408 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_ast [2021-11-20 07:29:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 07:29:28,408 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 07:29:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-20 07:29:28,408 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-20 07:29:28,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 07:29:28,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 07:29:28,409 INFO L130 BoogieDeclarations]: Found specification of procedure type4_infoblock [2021-11-20 07:29:28,409 INFO L138 BoogieDeclarations]: Found implementation of procedure type4_infoblock [2021-11-20 07:29:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_put_cache [2021-11-20 07:29:28,410 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_put_cache [2021-11-20 07:29:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-20 07:29:28,410 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-20 07:29:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_de4x5_private [2021-11-20 07:29:28,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_de4x5_private [2021-11-20 07:29:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-20 07:29:28,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-20 07:29:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_de4x5_private [2021-11-20 07:29:28,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_de4x5_private [2021-11-20 07:29:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_mii [2021-11-20 07:29:28,472 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_mii [2021-11-20 07:29:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_switch_mac_port [2021-11-20 07:29:28,472 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_switch_mac_port [2021-11-20 07:29:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-20 07:29:28,472 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-20 07:29:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure srom_latch [2021-11-20 07:29:28,472 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_latch [2021-11-20 07:29:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2021-11-20 07:29:28,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2021-11-20 07:29:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-20 07:29:28,473 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-20 07:29:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure build_setup_frame [2021-11-20 07:29:28,473 INFO L138 BoogieDeclarations]: Found implementation of procedure build_setup_frame [2021-11-20 07:29:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure type2_infoblock [2021-11-20 07:29:28,473 INFO L138 BoogieDeclarations]: Found implementation of procedure type2_infoblock [2021-11-20 07:29:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure type0_infoblock [2021-11-20 07:29:28,474 INFO L138 BoogieDeclarations]: Found implementation of procedure type0_infoblock [2021-11-20 07:29:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-11-20 07:29:28,474 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-11-20 07:29:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure DevicePresent [2021-11-20 07:29:28,474 INFO L138 BoogieDeclarations]: Found implementation of procedure DevicePresent [2021-11-20 07:29:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-11-20 07:29:28,474 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-11-20 07:29:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-20 07:29:28,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-20 07:29:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure dc21143_infoleaf [2021-11-20 07:29:28,475 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21143_infoleaf [2021-11-20 07:29:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2021-11-20 07:29:28,475 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2021-11-20 07:29:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-20 07:29:28,476 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-20 07:29:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 07:29:28,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 07:29:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-11-20 07:29:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_sw_reset [2021-11-20 07:29:28,476 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_sw_reset [2021-11-20 07:29:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:29:28,477 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-11-20 07:29:28,477 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-11-20 07:29:28,477 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-20 07:29:28,477 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-20 07:29:28,477 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-11-20 07:29:28,477 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-11-20 07:29:28,477 INFO L130 BoogieDeclarations]: Found specification of procedure is_spd_100 [2021-11-20 07:29:28,478 INFO L138 BoogieDeclarations]: Found implementation of procedure is_spd_100 [2021-11-20 07:29:28,478 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-20 07:29:28,478 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-20 07:29:28,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 07:29:28,478 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-20 07:29:28,478 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-20 07:29:28,478 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_mii [2021-11-20 07:29:28,478 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_mii [2021-11-20 07:29:28,479 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_rx_buffs [2021-11-20 07:29:28,480 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_rx_buffs [2021-11-20 07:29:28,480 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-20 07:29:28,481 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-20 07:29:28,481 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-20 07:29:28,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-20 07:29:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-20 07:29:28,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-20 07:29:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 07:29:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-20 07:29:28,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-20 07:29:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 07:29:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-20 07:29:28,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-20 07:29:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 07:29:28,493 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 07:29:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-20 07:29:28,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-20 07:29:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-20 07:29:28,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-20 07:29:28,494 INFO L130 BoogieDeclarations]: Found specification of procedure ping_media [2021-11-20 07:29:28,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ping_media [2021-11-20 07:29:28,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-20 07:29:28,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-20 07:29:28,494 INFO L130 BoogieDeclarations]: Found specification of procedure srom_autoconf [2021-11-20 07:29:28,495 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_autoconf [2021-11-20 07:29:28,495 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-20 07:29:28,495 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-20 07:29:28,495 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-20 07:29:28,495 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-20 07:29:28,496 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_tx [2021-11-20 07:29:28,496 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_tx [2021-11-20 07:29:28,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-20 07:29:28,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-20 07:29:28,496 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-20 07:29:28,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-20 07:29:28,497 INFO L130 BoogieDeclarations]: Found specification of procedure srom_rd [2021-11-20 07:29:28,497 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_rd [2021-11-20 07:29:28,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 07:29:28,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-20 07:29:28,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-20 07:29:28,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-20 07:29:28,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-20 07:29:28,498 INFO L130 BoogieDeclarations]: Found specification of procedure SetMulticastFilter [2021-11-20 07:29:28,498 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMulticastFilter [2021-11-20 07:29:28,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:29:28,499 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ioctl [2021-11-20 07:29:28,499 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ioctl [2021-11-20 07:29:28,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 07:29:28,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 07:29:28,500 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-20 07:29:28,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-20 07:29:28,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 07:29:28,500 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 07:29:28,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 07:29:28,502 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_srom [2021-11-20 07:29:28,502 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_srom [2021-11-20 07:29:28,503 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-20 07:29:28,503 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-20 07:29:28,503 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-20 07:29:28,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-20 07:29:28,503 INFO L130 BoogieDeclarations]: Found specification of procedure mii_swap [2021-11-20 07:29:28,504 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_swap [2021-11-20 07:29:28,504 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_reset_phy [2021-11-20 07:29:28,504 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_reset_phy [2021-11-20 07:29:28,504 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_putb_cache [2021-11-20 07:29:28,504 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_putb_cache [2021-11-20 07:29:28,504 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-20 07:29:28,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-20 07:29:28,505 INFO L130 BoogieDeclarations]: Found specification of procedure dc21142_infoleaf [2021-11-20 07:29:28,505 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21142_infoleaf [2021-11-20 07:29:28,505 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 07:29:28,505 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 07:29:28,506 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_stats [2021-11-20 07:29:28,506 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_stats [2021-11-20 07:29:28,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-20 07:29:28,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-20 07:29:28,506 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-20 07:29:28,506 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-20 07:29:28,507 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init_connection [2021-11-20 07:29:28,507 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init_connection [2021-11-20 07:29:28,507 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wr [2021-11-20 07:29:28,507 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wr [2021-11-20 07:29:28,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:29:28,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:29:28,508 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_state [2021-11-20 07:29:28,508 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_state [2021-11-20 07:29:28,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-20 07:29:28,508 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-20 07:29:28,508 INFO L130 BoogieDeclarations]: Found specification of procedure type3_infoblock [2021-11-20 07:29:28,509 INFO L138 BoogieDeclarations]: Found implementation of procedure type3_infoblock [2021-11-20 07:29:28,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 07:29:28,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 07:29:28,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 07:29:28,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 07:29:28,509 INFO L130 BoogieDeclarations]: Found specification of procedure reset_init_sia [2021-11-20 07:29:28,510 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_init_sia [2021-11-20 07:29:28,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-20 07:29:28,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-20 07:29:28,510 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-20 07:29:28,510 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-20 07:29:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_alloc_rx_buff [2021-11-20 07:29:28,511 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_alloc_rx_buff [2021-11-20 07:29:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure test_for_100Mb [2021-11-20 07:29:28,511 INFO L138 BoogieDeclarations]: Found implementation of procedure test_for_100Mb [2021-11-20 07:29:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-20 07:29:28,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-20 07:29:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure type5_infoblock [2021-11-20 07:29:28,512 INFO L138 BoogieDeclarations]: Found implementation of procedure type5_infoblock [2021-11-20 07:29:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure load_packet [2021-11-20 07:29:28,512 INFO L138 BoogieDeclarations]: Found implementation of procedure load_packet [2021-11-20 07:29:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140m_autoconf [2021-11-20 07:29:28,513 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140m_autoconf [2021-11-20 07:29:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure is_100_up [2021-11-20 07:29:28,513 INFO L138 BoogieDeclarations]: Found implementation of procedure is_100_up [2021-11-20 07:29:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_open [2021-11-20 07:29:28,513 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_open [2021-11-20 07:29:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 07:29:28,514 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 07:29:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ta [2021-11-20 07:29:28,514 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ta [2021-11-20 07:29:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-20 07:29:28,514 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-20 07:29:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_autoconf [2021-11-20 07:29:28,515 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_autoconf [2021-11-20 07:29:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-11-20 07:29:28,515 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-11-20 07:29:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure test_mii_reg [2021-11-20 07:29:28,516 INFO L138 BoogieDeclarations]: Found implementation of procedure test_mii_reg [2021-11-20 07:29:28,516 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_cache_state [2021-11-20 07:29:28,516 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_cache_state [2021-11-20 07:29:28,516 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-20 07:29:28,516 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-20 07:29:28,517 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_pci_remove [2021-11-20 07:29:28,517 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_pci_remove [2021-11-20 07:29:28,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:29:28,517 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_media [2021-11-20 07:29:28,517 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_media [2021-11-20 07:29:28,517 INFO L130 BoogieDeclarations]: Found specification of procedure autoconf_media [2021-11-20 07:29:28,518 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconf_media [2021-11-20 07:29:28,518 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_autoconf [2021-11-20 07:29:28,518 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_autoconf [2021-11-20 07:29:28,518 INFO L130 BoogieDeclarations]: Found specification of procedure mii_rd [2021-11-20 07:29:28,518 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_rd [2021-11-20 07:29:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 07:29:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ast [2021-11-20 07:29:28,519 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ast [2021-11-20 07:29:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2021-11-20 07:29:28,519 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2021-11-20 07:29:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2021-11-20 07:29:28,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2021-11-20 07:29:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 07:29:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-20 07:29:28,520 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-20 07:29:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure is_10_up [2021-11-20 07:29:28,521 INFO L138 BoogieDeclarations]: Found implementation of procedure is_10_up [2021-11-20 07:29:28,521 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-20 07:29:28,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-20 07:29:28,521 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-20 07:29:28,521 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-20 07:29:28,522 INFO L130 BoogieDeclarations]: Found specification of procedure is_anc_capable [2021-11-20 07:29:28,522 INFO L138 BoogieDeclarations]: Found implementation of procedure is_anc_capable [2021-11-20 07:29:28,522 INFO L130 BoogieDeclarations]: Found specification of procedure type1_infoblock [2021-11-20 07:29:28,522 INFO L138 BoogieDeclarations]: Found implementation of procedure type1_infoblock [2021-11-20 07:29:28,522 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-20 07:29:28,522 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-20 07:29:28,523 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-20 07:29:28,523 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-20 07:29:28,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-20 07:29:28,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-20 07:29:28,523 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140_infoleaf [2021-11-20 07:29:28,524 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140_infoleaf [2021-11-20 07:29:28,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-20 07:29:28,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-20 07:29:28,524 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-11-20 07:29:28,524 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-11-20 07:29:28,524 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_queue_pkt [2021-11-20 07:29:28,525 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_queue_pkt [2021-11-20 07:29:28,525 INFO L130 BoogieDeclarations]: Found specification of procedure test_media [2021-11-20 07:29:28,525 INFO L138 BoogieDeclarations]: Found implementation of procedure test_media [2021-11-20 07:29:28,525 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buffs [2021-11-20 07:29:28,525 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buffs [2021-11-20 07:29:28,526 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2021-11-20 07:29:28,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2021-11-20 07:29:28,526 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-20 07:29:28,526 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-20 07:29:28,526 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-20 07:29:28,527 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-20 07:29:28,527 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-20 07:29:28,527 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-20 07:29:28,527 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init [2021-11-20 07:29:28,527 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init [2021-11-20 07:29:28,528 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-20 07:29:28,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-20 07:29:28,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_73 [2021-11-20 07:29:28,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_73 [2021-11-20 07:29:28,528 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_infoleaf [2021-11-20 07:29:28,528 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_infoleaf [2021-11-20 07:29:28,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 07:29:28,529 INFO L130 BoogieDeclarations]: Found specification of procedure srom_exec [2021-11-20 07:29:28,529 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_exec [2021-11-20 07:29:28,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 07:29:28,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 07:29:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure gep_wr [2021-11-20 07:29:28,530 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_wr [2021-11-20 07:29:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-20 07:29:28,530 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-20 07:29:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_srom [2021-11-20 07:29:28,530 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_srom [2021-11-20 07:29:28,531 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-20 07:29:28,531 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-20 07:29:28,531 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_cache [2021-11-20 07:29:28,531 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_cache [2021-11-20 07:29:28,531 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_suspect_state [2021-11-20 07:29:28,532 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_suspect_state [2021-11-20 07:29:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_mii [2021-11-20 07:29:28,532 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_mii [2021-11-20 07:29:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure compact_infoblock [2021-11-20 07:29:28,532 INFO L138 BoogieDeclarations]: Found implementation of procedure compact_infoblock [2021-11-20 07:29:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-20 07:29:28,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-20 07:29:28,533 INFO L130 BoogieDeclarations]: Found specification of procedure gep_rd [2021-11-20 07:29:28,533 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_rd [2021-11-20 07:29:28,533 INFO L130 BoogieDeclarations]: Found specification of procedure mii_address [2021-11-20 07:29:28,533 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_address [2021-11-20 07:29:28,533 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buff [2021-11-20 07:29:28,534 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buff [2021-11-20 07:29:28,534 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_setup_intr [2021-11-20 07:29:28,534 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_setup_intr [2021-11-20 07:29:28,534 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_save_skbs [2021-11-20 07:29:28,534 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_save_skbs [2021-11-20 07:29:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure dc2114x_autoconf [2021-11-20 07:29:28,535 INFO L138 BoogieDeclarations]: Found implementation of procedure dc2114x_autoconf [2021-11-20 07:29:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-20 07:29:28,535 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-20 07:29:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure srom_map_media [2021-11-20 07:29:28,535 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_map_media [2021-11-20 07:29:28,536 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_strncmp [2021-11-20 07:29:28,536 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_strncmp [2021-11-20 07:29:28,536 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-11-20 07:29:28,536 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-11-20 07:29:28,536 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_close [2021-11-20 07:29:28,537 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_close [2021-11-20 07:29:28,537 INFO L130 BoogieDeclarations]: Found specification of procedure yawn [2021-11-20 07:29:28,537 INFO L138 BoogieDeclarations]: Found implementation of procedure yawn [2021-11-20 07:29:28,537 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wdata [2021-11-20 07:29:28,537 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wdata [2021-11-20 07:29:28,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:29:28,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-20 07:29:28,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-20 07:29:28,538 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-20 07:29:30,185 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:29:30,195 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:29:30,839 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 07:29:48,497 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-20 07:29:48,873 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:29:48,923 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:29:48,923 INFO L301 CfgBuilder]: Removed 17 assume(true) statements. [2021-11-20 07:29:48,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:29:48 BoogieIcfgContainer [2021-11-20 07:29:48,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:29:48,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:29:48,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:29:48,942 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:29:48,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:29:19" (1/3) ... [2021-11-20 07:29:48,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@334b5114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:29:48, skipping insertion in model container [2021-11-20 07:29:48,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:26" (2/3) ... [2021-11-20 07:29:48,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@334b5114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:29:48, skipping insertion in model container [2021-11-20 07:29:48,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:29:48" (3/3) ... [2021-11-20 07:29:48,946 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-20 07:29:48,952 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:29:48,953 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-20 07:29:49,042 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:29:49,050 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 07:29:49,051 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-20 07:29:49,195 INFO L276 IsEmpty]: Start isEmpty. Operand has 3959 states, 2824 states have (on average 1.3533994334277621) internal successors, (3822), 2886 states have internal predecessors, (3822), 996 states have call successors, (996), 153 states have call predecessors, (996), 152 states have return successors, (989), 975 states have call predecessors, (989), 989 states have call successors, (989) [2021-11-20 07:29:49,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-20 07:29:49,215 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:29:49,216 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:29:49,217 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 07:29:49,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:49,222 INFO L85 PathProgramCache]: Analyzing trace with hash -467583431, now seen corresponding path program 1 times [2021-11-20 07:29:49,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:49,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268942154] [2021-11-20 07:29:49,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:49,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:49,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:29:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:50,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:29:50,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:50,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:29:50,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:50,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:29:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:29:50,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:50,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 07:29:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:50,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 07:29:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:50,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:29:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:50,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 07:29:50,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 07:29:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 07:29:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 07:29:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 07:29:50,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:50,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-20 07:29:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:50,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-20 07:29:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:50,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-20 07:29:50,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-20 07:29:50,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:50,700 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-20 07:29:50,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:29:50,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268942154] [2021-11-20 07:29:50,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268942154] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:29:50,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:29:50,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:29:50,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337563071] [2021-11-20 07:29:50,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:29:50,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:29:50,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:29:50,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:29:50,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:29:50,758 INFO L87 Difference]: Start difference. First operand has 3959 states, 2824 states have (on average 1.3533994334277621) internal successors, (3822), 2886 states have internal predecessors, (3822), 996 states have call successors, (996), 153 states have call predecessors, (996), 152 states have return successors, (989), 975 states have call predecessors, (989), 989 states have call successors, (989) Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-20 07:29:52,834 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:29:54,847 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:30:10,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:30:10,360 INFO L93 Difference]: Finished difference Result 11984 states and 17999 transitions. [2021-11-20 07:30:10,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:30:10,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 189 [2021-11-20 07:30:10,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:30:10,479 INFO L225 Difference]: With dead ends: 11984 [2021-11-20 07:30:10,480 INFO L226 Difference]: Without dead ends: 8046 [2021-11-20 07:30:10,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:30:10,544 INFO L933 BasicCegarLoop]: 5361 mSDtfsCounter, 9142 mSDsluCounter, 4885 mSDsCounter, 0 mSdLazyCounter, 4354 mSolverCounterSat, 3959 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10012 SdHoareTripleChecker+Valid, 10246 SdHoareTripleChecker+Invalid, 8315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3959 IncrementalHoareTripleChecker+Valid, 4354 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2021-11-20 07:30:10,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10012 Valid, 10246 Invalid, 8315 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3959 Valid, 4354 Invalid, 2 Unknown, 0 Unchecked, 18.3s Time] [2021-11-20 07:30:10,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8046 states. [2021-11-20 07:30:11,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8046 to 7694. [2021-11-20 07:30:11,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 5485 states have (on average 1.3522333637192343) internal successors, (7417), 5577 states have internal predecessors, (7417), 1905 states have call successors, (1905), 302 states have call predecessors, (1905), 301 states have return successors, (1902), 1874 states have call predecessors, (1902), 1902 states have call successors, (1902) [2021-11-20 07:30:11,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 11224 transitions. [2021-11-20 07:30:11,379 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 11224 transitions. Word has length 189 [2021-11-20 07:30:11,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:30:11,381 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 11224 transitions. [2021-11-20 07:30:11,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-20 07:30:11,382 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 11224 transitions. [2021-11-20 07:30:11,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-20 07:30:11,391 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:30:11,392 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:30:11,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:30:11,392 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 07:30:11,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:30:11,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1633531592, now seen corresponding path program 1 times [2021-11-20 07:30:11,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:30:11,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902560506] [2021-11-20 07:30:11,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:30:11,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:30:11,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:30:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:30:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:30:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:11,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:30:11,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:11,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:30:11,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:11,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 07:30:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:11,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 07:30:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:30:11,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:11,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 07:30:11,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 07:30:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:11,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 07:30:11,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:11,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 07:30:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:11,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 07:30:11,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-20 07:30:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:11,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:12,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-20 07:30:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:12,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:12,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:12,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-20 07:30:12,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:12,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-20 07:30:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:12,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-20 07:30:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:12,067 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-20 07:30:12,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:30:12,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902560506] [2021-11-20 07:30:12,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902560506] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:30:12,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:30:12,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:30:12,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917406750] [2021-11-20 07:30:12,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:30:12,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:30:12,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:30:12,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:30:12,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:30:12,073 INFO L87 Difference]: Start difference. First operand 7694 states and 11224 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-20 07:30:14,124 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:30:16,120 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:30:30,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:30:30,953 INFO L93 Difference]: Finished difference Result 23286 states and 34479 transitions. [2021-11-20 07:30:30,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:30:30,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 195 [2021-11-20 07:30:30,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:30:31,128 INFO L225 Difference]: With dead ends: 23286 [2021-11-20 07:30:31,128 INFO L226 Difference]: Without dead ends: 15627 [2021-11-20 07:30:31,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:30:31,196 INFO L933 BasicCegarLoop]: 5350 mSDtfsCounter, 8971 mSDsluCounter, 5084 mSDsCounter, 0 mSdLazyCounter, 4424 mSolverCounterSat, 4029 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9791 SdHoareTripleChecker+Valid, 10434 SdHoareTripleChecker+Invalid, 8454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4029 IncrementalHoareTripleChecker+Valid, 4424 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:30:31,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9791 Valid, 10434 Invalid, 8454 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4029 Valid, 4424 Invalid, 1 Unknown, 0 Unchecked, 17.8s Time] [2021-11-20 07:30:31,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15627 states. [2021-11-20 07:30:32,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15627 to 15201. [2021-11-20 07:30:32,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15201 states, 10863 states have (on average 1.3469575623676702) internal successors, (14632), 10957 states have internal predecessors, (14632), 3698 states have call successors, (3698), 600 states have call predecessors, (3698), 637 states have return successors, (4175), 3763 states have call predecessors, (4175), 3695 states have call successors, (4175) [2021-11-20 07:30:32,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15201 states to 15201 states and 22505 transitions. [2021-11-20 07:30:32,236 INFO L78 Accepts]: Start accepts. Automaton has 15201 states and 22505 transitions. Word has length 195 [2021-11-20 07:30:32,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:30:32,237 INFO L470 AbstractCegarLoop]: Abstraction has 15201 states and 22505 transitions. [2021-11-20 07:30:32,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-20 07:30:32,239 INFO L276 IsEmpty]: Start isEmpty. Operand 15201 states and 22505 transitions. [2021-11-20 07:30:32,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-11-20 07:30:32,247 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:30:32,248 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:30:32,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:30:32,249 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 07:30:32,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:30:32,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1814963991, now seen corresponding path program 1 times [2021-11-20 07:30:32,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:30:32,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610468814] [2021-11-20 07:30:32,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:30:32,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:30:32,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:30:32,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:30:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:30:32,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:32,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:30:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:32,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:30:32,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 07:30:32,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 07:30:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:32,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:30:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:32,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 07:30:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:32,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 07:30:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:32,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 07:30:32,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 07:30:32,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:32,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 07:30:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-20 07:30:32,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-20 07:30:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:32,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-20 07:30:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-20 07:30:32,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:32,808 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-20 07:30:32,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:30:32,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610468814] [2021-11-20 07:30:32,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610468814] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:30:32,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:30:32,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:30:32,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312545125] [2021-11-20 07:30:32,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:30:32,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:30:32,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:30:32,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:30:32,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:30:32,812 INFO L87 Difference]: Start difference. First operand 15201 states and 22505 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-20 07:30:34,850 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:30:36,861 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:30:50,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:30:50,419 INFO L93 Difference]: Finished difference Result 46139 states and 68664 transitions. [2021-11-20 07:30:50,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:30:50,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 205 [2021-11-20 07:30:50,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:30:50,637 INFO L225 Difference]: With dead ends: 46139 [2021-11-20 07:30:50,638 INFO L226 Difference]: Without dead ends: 30973 [2021-11-20 07:30:50,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:30:50,730 INFO L933 BasicCegarLoop]: 5338 mSDtfsCounter, 9096 mSDsluCounter, 4875 mSDsCounter, 0 mSdLazyCounter, 4380 mSolverCounterSat, 4007 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9959 SdHoareTripleChecker+Valid, 10213 SdHoareTripleChecker+Invalid, 8389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4007 IncrementalHoareTripleChecker+Valid, 4380 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2021-11-20 07:30:50,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9959 Valid, 10213 Invalid, 8389 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4007 Valid, 4380 Invalid, 2 Unknown, 0 Unchecked, 16.5s Time] [2021-11-20 07:30:50,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30973 states. [2021-11-20 07:30:52,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30973 to 30449. [2021-11-20 07:30:52,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30449 states, 21795 states have (on average 1.3443450332645102) internal successors, (29300), 21887 states have internal predecessors, (29300), 7340 states have call successors, (7340), 1198 states have call predecessors, (7340), 1311 states have return successors, (8613), 7603 states have call predecessors, (8613), 7337 states have call successors, (8613) [2021-11-20 07:30:52,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30449 states to 30449 states and 45253 transitions. [2021-11-20 07:30:52,415 INFO L78 Accepts]: Start accepts. Automaton has 30449 states and 45253 transitions. Word has length 205 [2021-11-20 07:30:52,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:30:52,417 INFO L470 AbstractCegarLoop]: Abstraction has 30449 states and 45253 transitions. [2021-11-20 07:30:52,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-20 07:30:52,418 INFO L276 IsEmpty]: Start isEmpty. Operand 30449 states and 45253 transitions. [2021-11-20 07:30:52,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-11-20 07:30:52,424 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:30:52,425 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:30:52,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 07:30:52,425 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 07:30:52,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:30:52,426 INFO L85 PathProgramCache]: Analyzing trace with hash -202220775, now seen corresponding path program 1 times [2021-11-20 07:30:52,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:30:52,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089467420] [2021-11-20 07:30:52,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:30:52,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:30:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:52,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:30:52,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:52,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:52,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:30:52,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:52,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:52,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:52,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:30:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:52,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:52,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:52,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:30:52,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:52,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:52,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:30:52,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:52,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:52,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 07:30:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:52,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:52,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 07:30:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:52,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:52,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:52,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:30:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:52,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:52,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 07:30:52,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:52,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:52,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:52,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 07:30:52,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:52,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:52,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:52,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 07:30:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:52,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:52,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:52,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 07:30:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:52,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:53,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 07:30:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:53,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:53,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-20 07:30:53,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:53,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:53,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:53,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-20 07:30:53,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:53,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:53,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:53,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-20 07:30:53,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:53,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-20 07:30:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:53,144 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-20 07:30:53,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:30:53,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089467420] [2021-11-20 07:30:53,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089467420] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:30:53,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:30:53,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:30:53,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427558960] [2021-11-20 07:30:53,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:30:53,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:30:53,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:30:53,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:30:53,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:30:53,147 INFO L87 Difference]: Start difference. First operand 30449 states and 45253 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-20 07:30:55,189 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:30:57,197 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:31:10,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:31:10,814 INFO L93 Difference]: Finished difference Result 91901 states and 136942 transitions. [2021-11-20 07:31:10,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:31:10,814 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 206 [2021-11-20 07:31:10,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:31:11,205 INFO L225 Difference]: With dead ends: 91901 [2021-11-20 07:31:11,205 INFO L226 Difference]: Without dead ends: 61487 [2021-11-20 07:31:11,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:31:11,390 INFO L933 BasicCegarLoop]: 5331 mSDtfsCounter, 9096 mSDsluCounter, 4867 mSDsCounter, 0 mSdLazyCounter, 4378 mSolverCounterSat, 4009 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9960 SdHoareTripleChecker+Valid, 10198 SdHoareTripleChecker+Invalid, 8389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4009 IncrementalHoareTripleChecker+Valid, 4378 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:31:11,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9960 Valid, 10198 Invalid, 8389 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4009 Valid, 4378 Invalid, 2 Unknown, 0 Unchecked, 16.1s Time] [2021-11-20 07:31:11,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61487 states. [2021-11-20 07:31:14,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61487 to 60765. [2021-11-20 07:31:14,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60765 states, 43519 states have (on average 1.3430455663043728) internal successors, (58448), 43607 states have internal predecessors, (58448), 14584 states have call successors, (14584), 2394 states have call predecessors, (14584), 2659 states have return successors, (17441), 15243 states have call predecessors, (17441), 14581 states have call successors, (17441) [2021-11-20 07:31:15,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60765 states to 60765 states and 90473 transitions. [2021-11-20 07:31:15,571 INFO L78 Accepts]: Start accepts. Automaton has 60765 states and 90473 transitions. Word has length 206 [2021-11-20 07:31:15,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:31:15,572 INFO L470 AbstractCegarLoop]: Abstraction has 60765 states and 90473 transitions. [2021-11-20 07:31:15,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-20 07:31:15,573 INFO L276 IsEmpty]: Start isEmpty. Operand 60765 states and 90473 transitions. [2021-11-20 07:31:15,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-20 07:31:15,578 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:31:15,579 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:31:15,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 07:31:15,579 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 07:31:15,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:31:15,580 INFO L85 PathProgramCache]: Analyzing trace with hash 468691212, now seen corresponding path program 1 times [2021-11-20 07:31:15,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:31:15,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834140410] [2021-11-20 07:31:15,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:31:15,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:31:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:15,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:31:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:15,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:15,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:31:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:15,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:15,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:15,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:31:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:15,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:15,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:15,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:31:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:15,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:15,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:15,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:31:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:15,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:15,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:15,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 07:31:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:15,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:15,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:15,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 07:31:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:16,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:16,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:31:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:16,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:16,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 07:31:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:16,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:16,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 07:31:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:16,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:16,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 07:31:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:16,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:16,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:16,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 07:31:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:16,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:16,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 07:31:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:16,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:16,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-20 07:31:16,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:16,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:16,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:16,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-20 07:31:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:16,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:16,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-20 07:31:16,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:16,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-20 07:31:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:16,166 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-20 07:31:16,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:31:16,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834140410] [2021-11-20 07:31:16,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834140410] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:31:16,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:31:16,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:31:16,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389697811] [2021-11-20 07:31:16,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:31:16,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:31:16,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:31:16,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:31:16,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:31:16,171 INFO L87 Difference]: Start difference. First operand 60765 states and 90473 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-20 07:31:18,212 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:31:20,221 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:31:35,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:31:35,957 INFO L93 Difference]: Finished difference Result 182885 states and 272690 transitions. [2021-11-20 07:31:35,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:31:35,959 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 207 [2021-11-20 07:31:35,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:31:37,102 INFO L225 Difference]: With dead ends: 182885 [2021-11-20 07:31:37,103 INFO L226 Difference]: Without dead ends: 122155 [2021-11-20 07:31:37,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:31:37,592 INFO L933 BasicCegarLoop]: 5331 mSDtfsCounter, 9089 mSDsluCounter, 4852 mSDsCounter, 0 mSdLazyCounter, 4382 mSolverCounterSat, 4005 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9952 SdHoareTripleChecker+Valid, 10183 SdHoareTripleChecker+Invalid, 8389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4005 IncrementalHoareTripleChecker+Valid, 4382 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2021-11-20 07:31:37,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9952 Valid, 10183 Invalid, 8389 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4005 Valid, 4382 Invalid, 2 Unknown, 0 Unchecked, 16.2s Time] [2021-11-20 07:31:37,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122155 states. [2021-11-20 07:31:42,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122155 to 121037. [2021-11-20 07:31:42,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121037 states, 86687 states have (on average 1.3423927463172103) internal successors, (116368), 86767 states have internal predecessors, (116368), 28992 states have call successors, (28992), 4786 states have call predecessors, (28992), 5355 states have return successors, (35021), 30443 states have call predecessors, (35021), 28989 states have call successors, (35021) [2021-11-20 07:31:43,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121037 states to 121037 states and 180381 transitions. [2021-11-20 07:31:43,976 INFO L78 Accepts]: Start accepts. Automaton has 121037 states and 180381 transitions. Word has length 207 [2021-11-20 07:31:43,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:31:43,977 INFO L470 AbstractCegarLoop]: Abstraction has 121037 states and 180381 transitions. [2021-11-20 07:31:43,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-20 07:31:43,977 INFO L276 IsEmpty]: Start isEmpty. Operand 121037 states and 180381 transitions. [2021-11-20 07:31:43,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-20 07:31:43,984 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:31:43,984 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:31:43,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 07:31:43,985 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 07:31:43,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:31:43,986 INFO L85 PathProgramCache]: Analyzing trace with hash 2007606172, now seen corresponding path program 1 times [2021-11-20 07:31:43,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:31:43,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082263857] [2021-11-20 07:31:43,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:31:43,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:31:44,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:31:44,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:44,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:31:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:31:44,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:31:44,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:31:44,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:44,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 07:31:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:44,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 07:31:44,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:44,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:31:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:44,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 07:31:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:44,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 07:31:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:44,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 07:31:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:44,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 07:31:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 07:31:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:44,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-20 07:31:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:44,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-20 07:31:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-20 07:31:44,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-20 07:31:44,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:44,470 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-20 07:31:44,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:31:44,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082263857] [2021-11-20 07:31:44,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082263857] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:31:44,471 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:31:44,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:31:44,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625648708] [2021-11-20 07:31:44,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:31:44,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:31:44,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:31:44,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:31:44,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:31:44,474 INFO L87 Difference]: Start difference. First operand 121037 states and 180381 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-20 07:31:46,518 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:31:48,530 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:32:09,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:32:09,013 INFO L93 Difference]: Finished difference Result 362799 states and 541188 transitions. [2021-11-20 07:32:09,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:32:09,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 208 [2021-11-20 07:32:09,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:32:10,516 INFO L225 Difference]: With dead ends: 362799 [2021-11-20 07:32:10,516 INFO L226 Difference]: Without dead ends: 241797 [2021-11-20 07:32:11,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:32:11,032 INFO L933 BasicCegarLoop]: 5336 mSDtfsCounter, 9082 mSDsluCounter, 4851 mSDsCounter, 0 mSdLazyCounter, 4388 mSolverCounterSat, 3999 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9946 SdHoareTripleChecker+Valid, 10187 SdHoareTripleChecker+Invalid, 8389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3999 IncrementalHoareTripleChecker+Valid, 4388 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2021-11-20 07:32:11,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9946 Valid, 10187 Invalid, 8389 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3999 Valid, 4388 Invalid, 2 Unknown, 0 Unchecked, 17.5s Time] [2021-11-20 07:32:11,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241797 states.