./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa --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 91f73b42c8fe3db55fbb7a7497120df3b9b2fa6084f78fe538d2c182c8caed17 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 23:49:32,107 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 23:49:32,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 23:49:32,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 23:49:32,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 23:49:32,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 23:49:32,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 23:49:32,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 23:49:32,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 23:49:32,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 23:49:32,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 23:49:32,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 23:49:32,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 23:49:32,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 23:49:32,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 23:49:32,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 23:49:32,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 23:49:32,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 23:49:32,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 23:49:32,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 23:49:32,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 23:49:32,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 23:49:32,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 23:49:32,151 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 23:49:32,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 23:49:32,154 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 23:49:32,155 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 23:49:32,156 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 23:49:32,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 23:49:32,157 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 23:49:32,157 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 23:49:32,158 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 23:49:32,158 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 23:49:32,159 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 23:49:32,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 23:49:32,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 23:49:32,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 23:49:32,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 23:49:32,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 23:49:32,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 23:49:32,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 23:49:32,163 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 23:49:32,180 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 23:49:32,180 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 23:49:32,184 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 23:49:32,184 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 23:49:32,185 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 23:49:32,185 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 23:49:32,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 23:49:32,186 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 23:49:32,186 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 23:49:32,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 23:49:32,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 23:49:32,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 23:49:32,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 23:49:32,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 23:49:32,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 23:49:32,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 23:49:32,187 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 23:49:32,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 23:49:32,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 23:49:32,187 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 23:49:32,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 23:49:32,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:49:32,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 23:49:32,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 23:49:32,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 23:49:32,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 23:49:32,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 23:49:32,188 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 23:49:32,188 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 23:49:32,188 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 23:49:32,188 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 23:49:32,189 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_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91f73b42c8fe3db55fbb7a7497120df3b9b2fa6084f78fe538d2c182c8caed17 [2021-12-06 23:49:32,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 23:49:32,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 23:49:32,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 23:49:32,383 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 23:49:32,384 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 23:49:32,385 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2021-12-06 23:49:32,426 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/data/2e82bfb5b/55663cc5e22a4d009b35904249b40458/FLAG8ebf9351d [2021-12-06 23:49:33,172 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 23:49:33,173 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2021-12-06 23:49:33,219 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/data/2e82bfb5b/55663cc5e22a4d009b35904249b40458/FLAG8ebf9351d [2021-12-06 23:49:33,455 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/data/2e82bfb5b/55663cc5e22a4d009b35904249b40458 [2021-12-06 23:49:33,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 23:49:33,458 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 23:49:33,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 23:49:33,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 23:49:33,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 23:49:33,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:49:33" (1/1) ... [2021-12-06 23:49:33,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15776b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:49:33, skipping insertion in model container [2021-12-06 23:49:33,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:49:33" (1/1) ... [2021-12-06 23:49:33,468 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 23:49:33,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 23:49:38,324 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_0ca09b21-976c-47b4-abd8-079bb4b3bed7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[583669,583682] [2021-12-06 23:49:38,326 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_0ca09b21-976c-47b4-abd8-079bb4b3bed7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[583838,583851] [2021-12-06 23:49:38,326 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_0ca09b21-976c-47b4-abd8-079bb4b3bed7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[584005,584018] [2021-12-06 23:49:38,327 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_0ca09b21-976c-47b4-abd8-079bb4b3bed7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[584173,584186] [2021-12-06 23:49:38,364 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:49:38,410 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 23:49:38,907 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_0ca09b21-976c-47b4-abd8-079bb4b3bed7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[583669,583682] [2021-12-06 23:49:38,908 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_0ca09b21-976c-47b4-abd8-079bb4b3bed7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[583838,583851] [2021-12-06 23:49:38,908 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_0ca09b21-976c-47b4-abd8-079bb4b3bed7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[584005,584018] [2021-12-06 23:49:38,908 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_0ca09b21-976c-47b4-abd8-079bb4b3bed7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[584173,584186] [2021-12-06 23:49:38,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:49:39,232 INFO L208 MainTranslator]: Completed translation [2021-12-06 23:49:39,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:49:39 WrapperNode [2021-12-06 23:49:39,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 23:49:39,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 23:49:39,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 23:49:39,233 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 23:49:39,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:49:39" (1/1) ... [2021-12-06 23:49:39,340 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:49:39" (1/1) ... [2021-12-06 23:49:39,572 INFO L137 Inliner]: procedures = 798, calls = 5626, calls flagged for inlining = 404, calls inlined = 343, statements flattened = 11117 [2021-12-06 23:49:39,573 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 23:49:39,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 23:49:39,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 23:49:39,573 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 23:49:39,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:49:39" (1/1) ... [2021-12-06 23:49:39,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:49:39" (1/1) ... [2021-12-06 23:49:39,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:49:39" (1/1) ... [2021-12-06 23:49:39,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:49:39" (1/1) ... [2021-12-06 23:49:39,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:49:39" (1/1) ... [2021-12-06 23:49:39,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:49:39" (1/1) ... [2021-12-06 23:49:39,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:49:39" (1/1) ... [2021-12-06 23:49:39,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 23:49:39,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 23:49:39,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 23:49:39,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 23:49:39,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:49:39" (1/1) ... [2021-12-06 23:49:39,876 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:49:39,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:49:39,899 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 23:49:39,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 23:49:39,928 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-06 23:49:39,928 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-06 23:49:39,928 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_remove [2021-12-06 23:49:39,928 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_remove [2021-12-06 23:49:39,928 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_led [2021-12-06 23:49:39,928 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_led [2021-12-06 23:49:39,928 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_alloc_rx_skbs [2021-12-06 23:49:39,928 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_alloc_rx_skbs [2021-12-06 23:49:39,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-06 23:49:39,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-06 23:49:39,929 INFO L130 BoogieDeclarations]: Found specification of procedure rx_set_rss [2021-12-06 23:49:39,929 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_set_rss [2021-12-06 23:49:39,929 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_power_aux [2021-12-06 23:49:39,929 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_power_aux [2021-12-06 23:49:39,929 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-06 23:49:39,929 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-06 23:49:39,929 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2021-12-06 23:49:39,929 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2021-12-06 23:49:39,929 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-06 23:49:39,929 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-06 23:49:39,929 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_add_filter [2021-12-06 23:49:39,929 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_add_filter [2021-12-06 23:49:39,929 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-06 23:49:39,929 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-06 23:49:39,930 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-12-06 23:49:39,930 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-12-06 23:49:39,930 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2021-12-06 23:49:39,930 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2021-12-06 23:49:39,930 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-06 23:49:39,930 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-06 23:49:39,930 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-06 23:49:39,930 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-06 23:49:39,930 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_init_netdev [2021-12-06 23:49:39,930 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_init_netdev [2021-12-06 23:49:39,930 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-06 23:49:39,930 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-06 23:49:39,930 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-06 23:49:39,930 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-06 23:49:39,930 INFO L130 BoogieDeclarations]: Found specification of procedure netif_schedule_queue [2021-12-06 23:49:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_schedule_queue [2021-12-06 23:49:39,931 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_regs_len [2021-12-06 23:49:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_regs_len [2021-12-06 23:49:39,931 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-06 23:49:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-06 23:49:39,931 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_update [2021-12-06 23:49:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_update [2021-12-06 23:49:39,931 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-06 23:49:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-06 23:49:39,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-06 23:49:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-06 23:49:39,931 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_ramset [2021-12-06 23:49:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_ramset [2021-12-06 23:49:39,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 23:49:39,932 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_update_features [2021-12-06 23:49:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_update_features [2021-12-06 23:49:39,932 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_netpoll [2021-12-06 23:49:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_netpoll [2021-12-06 23:49:39,932 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-12-06 23:49:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-12-06 23:49:39,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-06 23:49:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-06 23:49:39,932 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-12-06 23:49:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-12-06 23:49:39,932 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-12-06 23:49:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-12-06 23:49:39,932 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-06 23:49:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-06 23:49:39,932 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-06 23:49:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-06 23:49:39,933 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_lock [2021-12-06 23:49:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_lock [2021-12-06 23:49:39,933 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-12-06 23:49:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-12-06 23:49:39,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-06 23:49:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-06 23:49:39,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 23:49:39,933 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_add [2021-12-06 23:49:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_add [2021-12-06 23:49:39,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2021-12-06 23:49:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2021-12-06 23:49:39,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 23:49:39,933 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_map_skb [2021-12-06 23:49:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_map_skb [2021-12-06 23:49:39,934 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_resume [2021-12-06 23:49:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_resume [2021-12-06 23:49:39,934 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_ring_size [2021-12-06 23:49:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_ring_size [2021-12-06 23:49:39,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-06 23:49:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-06 23:49:39,934 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-06 23:49:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-06 23:49:39,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 23:49:39,934 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-06 23:49:39,934 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read32 [2021-12-06 23:49:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read32 [2021-12-06 23:49:39,934 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2021-12-06 23:49:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2021-12-06 23:49:39,934 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_clean [2021-12-06 23:49:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_clean [2021-12-06 23:49:39,935 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-12-06 23:49:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-12-06 23:49:39,935 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-06 23:49:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-06 23:49:39,935 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_down [2021-12-06 23:49:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_down [2021-12-06 23:49:39,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-06 23:49:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-06 23:49:39,935 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_reinit [2021-12-06 23:49:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_reinit [2021-12-06 23:49:39,935 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-06 23:49:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-06 23:49:39,935 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read16 [2021-12-06 23:49:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read16 [2021-12-06 23:49:39,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 23:49:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 23:49:39,936 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write16 [2021-12-06 23:49:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write16 [2021-12-06 23:49:39,936 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-06 23:49:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-06 23:49:39,936 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_free_buffers [2021-12-06 23:49:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_free_buffers [2021-12-06 23:49:39,936 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-06 23:49:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-06 23:49:39,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 23:49:39,936 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-06 23:49:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-06 23:49:39,936 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-12-06 23:49:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-12-06 23:49:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2021-12-06 23:49:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2021-12-06 23:49:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-06 23:49:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-06 23:49:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read32 [2021-12-06 23:49:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read32 [2021-12-06 23:49:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-06 23:49:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_multicast [2021-12-06 23:49:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_multicast [2021-12-06 23:49:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-06 23:49:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-06 23:49:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_prefetch_init [2021-12-06 23:49:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_prefetch_init [2021-12-06 23:49:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_reset [2021-12-06 23:49:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_reset [2021-12-06 23:49:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-06 23:49:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-06 23:49:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-12-06 23:49:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-12-06 23:49:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-12-06 23:49:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-12-06 23:49:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2021-12-06 23:49:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2021-12-06 23:49:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 23:49:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 23:49:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-12-06 23:49:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-12-06 23:49:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-06 23:49:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-06 23:49:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vpd_wait [2021-12-06 23:49:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vpd_wait [2021-12-06 23:49:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-12-06 23:49:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-12-06 23:49:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_shutdown [2021-12-06 23:49:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_shutdown [2021-12-06 23:49:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read16 [2021-12-06 23:49:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read16 [2021-12-06 23:49:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_le [2021-12-06 23:49:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_le [2021-12-06 23:49:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_stop [2021-12-06 23:49:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_stop [2021-12-06 23:49:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 23:49:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-06 23:49:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-06 23:49:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 23:49:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_down [2021-12-06 23:49:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_down [2021-12-06 23:49:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-12-06 23:49:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-12-06 23:49:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure __gm_phy_read [2021-12-06 23:49:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __gm_phy_read [2021-12-06 23:49:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-06 23:49:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-06 23:49:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2021-12-06 23:49:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2021-12-06 23:49:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-06 23:49:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-06 23:49:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure gma_write16 [2021-12-06 23:49:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_write16 [2021-12-06 23:49:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-06 23:49:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-06 23:49:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_next_rx [2021-12-06 23:49:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_next_rx [2021-12-06 23:49:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-06 23:49:39,941 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-06 23:49:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2021-12-06 23:49:39,941 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2021-12-06 23:49:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_eeprom_len [2021-12-06 23:49:39,941 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_eeprom_len [2021-12-06 23:49:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-06 23:49:39,941 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-06 23:49:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_79 [2021-12-06 23:49:39,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_79 [2021-12-06 23:49:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 23:49:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_us2clk [2021-12-06 23:49:39,941 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_us2clk [2021-12-06 23:49:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 23:49:39,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 23:49:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2021-12-06 23:49:39,942 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2021-12-06 23:49:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-12-06 23:49:39,942 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-12-06 23:49:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2021-12-06 23:49:39,942 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2021-12-06 23:49:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-06 23:49:39,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-06 23:49:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-12-06 23:49:39,942 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-12-06 23:49:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_qset [2021-12-06 23:49:39,942 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_qset [2021-12-06 23:49:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_mhz [2021-12-06 23:49:39,942 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_mhz [2021-12-06 23:49:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-06 23:49:39,942 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-06 23:49:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-06 23:49:39,943 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-06 23:49:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-12-06 23:49:39,943 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-12-06 23:49:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats32 [2021-12-06 23:49:39,943 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats32 [2021-12-06 23:49:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 23:49:39,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 23:49:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-06 23:49:39,943 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-06 23:49:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_supported_modes [2021-12-06 23:49:39,943 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_supported_modes [2021-12-06 23:49:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_read [2021-12-06 23:49:39,943 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_read [2021-12-06 23:49:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_alloc [2021-12-06 23:49:39,943 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_alloc [2021-12-06 23:49:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2021-12-06 23:49:39,943 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2021-12-06 23:49:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_unlock [2021-12-06 23:49:39,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_unlock [2021-12-06 23:49:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-06 23:49:39,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-06 23:49:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_show_addr [2021-12-06 23:49:39,944 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_show_addr [2021-12-06 23:49:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-06 23:49:39,944 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-06 23:49:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_close [2021-12-06 23:49:39,944 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_close [2021-12-06 23:49:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-06 23:49:39,944 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-06 23:49:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-06 23:49:39,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-06 23:49:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_start [2021-12-06 23:49:39,944 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_start [2021-12-06 23:49:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 23:49:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-12-06 23:49:39,945 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-12-06 23:49:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats64 [2021-12-06 23:49:39,945 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats64 [2021-12-06 23:49:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-12-06 23:49:39,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-12-06 23:49:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-12-06 23:49:39,945 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-12-06 23:49:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-06 23:49:39,945 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-06 23:49:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure pci_is_pcie [2021-12-06 23:49:39,945 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_is_pcie [2021-12-06 23:49:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-06 23:49:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-12-06 23:49:39,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-12-06 23:49:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 23:49:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-06 23:49:39,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-06 23:49:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_80 [2021-12-06 23:49:39,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_80 [2021-12-06 23:49:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 23:49:39,946 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 23:49:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-06 23:49:39,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-06 23:49:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-06 23:49:39,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-06 23:49:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_up [2021-12-06 23:49:39,946 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_up [2021-12-06 23:49:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_1 [2021-12-06 23:49:39,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_1 [2021-12-06 23:49:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_2 [2021-12-06 23:49:39,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_2 [2021-12-06 23:49:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-12-06 23:49:39,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-12-06 23:49:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_unmap [2021-12-06 23:49:39,947 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_unmap [2021-12-06 23:49:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_put_idx [2021-12-06 23:49:39,947 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_put_idx [2021-12-06 23:49:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 23:49:39,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 23:49:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_dma_map [2021-12-06 23:49:39,947 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_dma_map [2021-12-06 23:49:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-06 23:49:39,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-06 23:49:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_power_up [2021-12-06 23:49:39,947 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_power_up [2021-12-06 23:49:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_init [2021-12-06 23:49:39,947 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_init [2021-12-06 23:49:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-06 23:49:39,947 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-06 23:49:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_complete [2021-12-06 23:49:39,948 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_complete [2021-12-06 23:49:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2021-12-06 23:49:39,948 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2021-12-06 23:49:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-12-06 23:49:39,948 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-12-06 23:49:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read16 [2021-12-06 23:49:39,948 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read16 [2021-12-06 23:49:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 23:49:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 23:49:39,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 23:49:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_up [2021-12-06 23:49:39,948 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_up [2021-12-06 23:49:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-06 23:49:39,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-06 23:49:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_timeout [2021-12-06 23:49:39,948 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_timeout [2021-12-06 23:49:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-06 23:49:39,948 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-06 23:49:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_wol_supported [2021-12-06 23:49:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_wol_supported [2021-12-06 23:49:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write32 [2021-12-06 23:49:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write32 [2021-12-06 23:49:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-12-06 23:49:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-12-06 23:49:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_submit [2021-12-06 23:49:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_submit [2021-12-06 23:49:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-12-06 23:49:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-12-06 23:49:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-06 23:49:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-06 23:49:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vlan_mode [2021-12-06 23:49:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vlan_mode [2021-12-06 23:49:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read8 [2021-12-06 23:49:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read8 [2021-12-06 23:49:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2021-12-06 23:49:39,950 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2021-12-06 23:49:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read32 [2021-12-06 23:49:39,950 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read32 [2021-12-06 23:49:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_phy_lock_of_sky2_port [2021-12-06 23:49:39,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_phy_lock_of_sky2_port [2021-12-06 23:49:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure gma_set_addr [2021-12-06 23:49:39,950 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_set_addr [2021-12-06 23:49:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-12-06 23:49:39,950 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-12-06 23:49:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-12-06 23:49:39,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-12-06 23:49:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-06 23:49:39,950 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-06 23:49:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-06 23:49:39,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-06 23:49:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-06 23:49:39,950 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-06 23:49:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 23:49:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_nway_reset [2021-12-06 23:49:39,951 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_nway_reset [2021-12-06 23:49:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-06 23:49:39,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-06 23:49:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-12-06 23:49:39,951 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-12-06 23:49:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-12-06 23:49:39,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-12-06 23:49:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-06 23:49:39,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-06 23:49:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-12-06 23:49:39,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-12-06 23:49:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-06 23:49:39,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-06 23:49:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure tx_avail [2021-12-06 23:49:39,951 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_avail [2021-12-06 23:49:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_unmap_skb [2021-12-06 23:49:39,952 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_unmap_skb [2021-12-06 23:49:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-06 23:49:39,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-06 23:49:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_clk2us [2021-12-06 23:49:39,952 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_clk2us [2021-12-06 23:49:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_tx_stfwd [2021-12-06 23:49:39,952 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_tx_stfwd [2021-12-06 23:49:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_enable_rx_tx [2021-12-06 23:49:39,952 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_enable_rx_tx [2021-12-06 23:49:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-06 23:49:39,952 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-06 23:49:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-12-06 23:49:39,952 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-12-06 23:49:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-12-06 23:49:39,953 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-12-06 23:49:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_setup_irq [2021-12-06 23:49:39,953 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_setup_irq [2021-12-06 23:49:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 23:49:39,953 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 23:49:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-12-06 23:49:39,953 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-12-06 23:49:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-12-06 23:49:39,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-12-06 23:49:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_is_copper [2021-12-06 23:49:39,953 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_is_copper [2021-12-06 23:49:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-06 23:49:39,953 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-06 23:49:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_suspend [2021-12-06 23:49:39,953 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_suspend [2021-12-06 23:49:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-12-06 23:49:39,953 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-12-06 23:49:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write16 [2021-12-06 23:49:39,954 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write16 [2021-12-06 23:49:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-06 23:49:39,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-06 23:49:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-06 23:49:39,954 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-06 23:49:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write8 [2021-12-06 23:49:39,954 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write8 [2021-12-06 23:49:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_write [2021-12-06 23:49:39,954 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_write [2021-12-06 23:49:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-12-06 23:49:39,954 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-12-06 23:49:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-06 23:49:39,954 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-06 23:49:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write32 [2021-12-06 23:49:39,954 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write32 [2021-12-06 23:49:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 23:49:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read64 [2021-12-06 23:49:39,954 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read64 [2021-12-06 23:49:39,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-06 23:49:39,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-06 23:49:39,955 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-06 23:49:39,955 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-06 23:49:39,955 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_open [2021-12-06 23:49:39,955 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_open [2021-12-06 23:49:39,955 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-06 23:49:40,702 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 23:49:40,705 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 23:49:40,774 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 23:49:50,657 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 23:49:50,679 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 23:49:50,680 INFO L301 CfgBuilder]: Removed 11 assume(true) statements. [2021-12-06 23:49:50,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:49:50 BoogieIcfgContainer [2021-12-06 23:49:50,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 23:49:50,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 23:49:50,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 23:49:50,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 23:49:50,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 11:49:33" (1/3) ... [2021-12-06 23:49:50,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e01f390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:49:50, skipping insertion in model container [2021-12-06 23:49:50,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:49:39" (2/3) ... [2021-12-06 23:49:50,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e01f390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:49:50, skipping insertion in model container [2021-12-06 23:49:50,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:49:50" (3/3) ... [2021-12-06 23:49:50,690 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2021-12-06 23:49:50,694 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 23:49:50,694 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-06 23:49:50,741 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 23:49:50,745 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 23:49:50,746 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-06 23:49:50,817 INFO L276 IsEmpty]: Start isEmpty. Operand has 3880 states, 2516 states have (on average 1.273449920508744) internal successors, (3204), 2622 states have internal predecessors, (3204), 1154 states have call successors, (1154), 208 states have call predecessors, (1154), 207 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2021-12-06 23:49:50,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-12-06 23:49:50,823 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:49:50,824 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:49:50,824 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)] === [2021-12-06 23:49:50,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:49:50,828 INFO L85 PathProgramCache]: Analyzing trace with hash -2091117277, now seen corresponding path program 1 times [2021-12-06 23:49:50,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:49:50,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352536986] [2021-12-06 23:49:50,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:49:50,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:49:51,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:49:51,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:49:51,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:49:51,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:49:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:49:51,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:49:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:49:51,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 23:49:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:49:51,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:49:51,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:49:51,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:49:51,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:49:51,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 23:49:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:49:51,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:49:51,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:49:51,625 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-06 23:49:51,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:49:51,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352536986] [2021-12-06 23:49:51,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352536986] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:49:51,626 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:49:51,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:49:51,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615725832] [2021-12-06 23:49:51,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:49:51,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:49:51,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:49:51,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:49:51,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:49:51,659 INFO L87 Difference]: Start difference. First operand has 3880 states, 2516 states have (on average 1.273449920508744) internal successors, (3204), 2622 states have internal predecessors, (3204), 1154 states have call successors, (1154), 208 states have call predecessors, (1154), 207 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 23:50:00,289 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:50:02,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:50:02,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:50:02,851 INFO L93 Difference]: Finished difference Result 7981 states and 11548 transitions. [2021-12-06 23:50:02,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 23:50:02,853 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2021-12-06 23:50:02,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:50:02,890 INFO L225 Difference]: With dead ends: 7981 [2021-12-06 23:50:02,891 INFO L226 Difference]: Without dead ends: 4172 [2021-12-06 23:50:02,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:50:02,921 INFO L933 BasicCegarLoop]: 4959 mSDtfsCounter, 5569 mSDsluCounter, 9840 mSDsCounter, 0 mSdLazyCounter, 4548 mSolverCounterSat, 2914 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6156 SdHoareTripleChecker+Valid, 14799 SdHoareTripleChecker+Invalid, 7464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2914 IncrementalHoareTripleChecker+Valid, 4548 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2021-12-06 23:50:02,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6156 Valid, 14799 Invalid, 7464 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2914 Valid, 4548 Invalid, 2 Unknown, 0 Unchecked, 10.6s Time] [2021-12-06 23:50:02,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4172 states. [2021-12-06 23:50:03,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4172 to 3850. [2021-12-06 23:50:03,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3850 states, 2484 states have (on average 1.2536231884057971) internal successors, (3114), 2587 states have internal predecessors, (3114), 1149 states have call successors, (1149), 215 states have call predecessors, (1149), 214 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2021-12-06 23:50:03,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3850 states to 3850 states and 5409 transitions. [2021-12-06 23:50:03,197 INFO L78 Accepts]: Start accepts. Automaton has 3850 states and 5409 transitions. Word has length 62 [2021-12-06 23:50:03,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:50:03,198 INFO L470 AbstractCegarLoop]: Abstraction has 3850 states and 5409 transitions. [2021-12-06 23:50:03,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 23:50:03,198 INFO L276 IsEmpty]: Start isEmpty. Operand 3850 states and 5409 transitions. [2021-12-06 23:50:03,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-06 23:50:03,202 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:50:03,202 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:50:03,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 23:50:03,202 INFO L402 AbstractCegarLoop]: === Iteration 2 === 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)] === [2021-12-06 23:50:03,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:50:03,203 INFO L85 PathProgramCache]: Analyzing trace with hash 828887405, now seen corresponding path program 1 times [2021-12-06 23:50:03,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:50:03,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948091041] [2021-12-06 23:50:03,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:50:03,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:50:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:03,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:50:03,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:03,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:50:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:03,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:50:03,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:03,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 23:50:03,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:03,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:50:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:03,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:50:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:03,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 23:50:03,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:03,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:50:03,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:03,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 23:50:03,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:03,566 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-06 23:50:03,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:50:03,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948091041] [2021-12-06 23:50:03,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948091041] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:50:03,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:50:03,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:50:03,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144577389] [2021-12-06 23:50:03,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:50:03,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:50:03,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:50:03,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:50:03,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:50:03,569 INFO L87 Difference]: Start difference. First operand 3850 states and 5409 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-06 23:50:12,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:50:14,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:50:14,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:50:14,642 INFO L93 Difference]: Finished difference Result 4176 states and 5943 transitions. [2021-12-06 23:50:14,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:50:14,643 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 67 [2021-12-06 23:50:14,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:50:14,668 INFO L225 Difference]: With dead ends: 4176 [2021-12-06 23:50:14,668 INFO L226 Difference]: Without dead ends: 4174 [2021-12-06 23:50:14,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:50:14,672 INFO L933 BasicCegarLoop]: 4921 mSDtfsCounter, 5535 mSDsluCounter, 9782 mSDsCounter, 0 mSdLazyCounter, 4448 mSolverCounterSat, 2887 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6142 SdHoareTripleChecker+Valid, 14703 SdHoareTripleChecker+Invalid, 7337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2887 IncrementalHoareTripleChecker+Valid, 4448 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2021-12-06 23:50:14,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6142 Valid, 14703 Invalid, 7337 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2887 Valid, 4448 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2021-12-06 23:50:14,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4174 states. [2021-12-06 23:50:14,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4174 to 3854. [2021-12-06 23:50:14,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3854 states, 2487 states have (on average 1.253317249698432) internal successors, (3117), 2590 states have internal predecessors, (3117), 1149 states have call successors, (1149), 216 states have call predecessors, (1149), 215 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2021-12-06 23:50:14,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3854 states to 3854 states and 5412 transitions. [2021-12-06 23:50:14,844 INFO L78 Accepts]: Start accepts. Automaton has 3854 states and 5412 transitions. Word has length 67 [2021-12-06 23:50:14,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:50:14,844 INFO L470 AbstractCegarLoop]: Abstraction has 3854 states and 5412 transitions. [2021-12-06 23:50:14,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-06 23:50:14,845 INFO L276 IsEmpty]: Start isEmpty. Operand 3854 states and 5412 transitions. [2021-12-06 23:50:14,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-06 23:50:14,847 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:50:14,848 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:50:14,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 23:50:14,848 INFO L402 AbstractCegarLoop]: === Iteration 3 === 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)] === [2021-12-06 23:50:14,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:50:14,848 INFO L85 PathProgramCache]: Analyzing trace with hash -541766877, now seen corresponding path program 1 times [2021-12-06 23:50:14,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:50:14,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978324627] [2021-12-06 23:50:14,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:50:14,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:50:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:15,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:50:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:15,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:50:15,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:15,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:50:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:15,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 23:50:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:15,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:50:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:15,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:50:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:15,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 23:50:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:15,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:50:15,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:15,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 23:50:15,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:15,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 23:50:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:15,241 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-06 23:50:15,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:50:15,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978324627] [2021-12-06 23:50:15,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978324627] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:50:15,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:50:15,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:50:15,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731859401] [2021-12-06 23:50:15,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:50:15,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:50:15,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:50:15,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:50:15,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:50:15,243 INFO L87 Difference]: Start difference. First operand 3854 states and 5412 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-06 23:50:22,813 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:50:25,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:50:25,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:50:25,374 INFO L93 Difference]: Finished difference Result 4180 states and 5946 transitions. [2021-12-06 23:50:25,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:50:25,374 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 72 [2021-12-06 23:50:25,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:50:25,394 INFO L225 Difference]: With dead ends: 4180 [2021-12-06 23:50:25,394 INFO L226 Difference]: Without dead ends: 4178 [2021-12-06 23:50:25,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:50:25,396 INFO L933 BasicCegarLoop]: 4919 mSDtfsCounter, 5534 mSDsluCounter, 9775 mSDsCounter, 0 mSdLazyCounter, 4448 mSolverCounterSat, 2886 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6144 SdHoareTripleChecker+Valid, 14694 SdHoareTripleChecker+Invalid, 7336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2886 IncrementalHoareTripleChecker+Valid, 4448 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2021-12-06 23:50:25,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6144 Valid, 14694 Invalid, 7336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2886 Valid, 4448 Invalid, 2 Unknown, 0 Unchecked, 9.8s Time] [2021-12-06 23:50:25,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4178 states. [2021-12-06 23:50:25,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4178 to 3858. [2021-12-06 23:50:25,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3858 states, 2490 states have (on average 1.2530120481927711) internal successors, (3120), 2593 states have internal predecessors, (3120), 1149 states have call successors, (1149), 217 states have call predecessors, (1149), 216 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2021-12-06 23:50:25,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3858 states to 3858 states and 5415 transitions. [2021-12-06 23:50:25,546 INFO L78 Accepts]: Start accepts. Automaton has 3858 states and 5415 transitions. Word has length 72 [2021-12-06 23:50:25,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:50:25,547 INFO L470 AbstractCegarLoop]: Abstraction has 3858 states and 5415 transitions. [2021-12-06 23:50:25,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-06 23:50:25,547 INFO L276 IsEmpty]: Start isEmpty. Operand 3858 states and 5415 transitions. [2021-12-06 23:50:25,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-06 23:50:25,550 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:50:25,550 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:50:25,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 23:50:25,551 INFO L402 AbstractCegarLoop]: === Iteration 4 === 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)] === [2021-12-06 23:50:25,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:50:25,551 INFO L85 PathProgramCache]: Analyzing trace with hash -895841555, now seen corresponding path program 1 times [2021-12-06 23:50:25,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:50:25,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738775706] [2021-12-06 23:50:25,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:50:25,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:50:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:25,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:50:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:25,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:50:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:25,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:50:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:25,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 23:50:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:25,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:50:25,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:25,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:50:25,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:25,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 23:50:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:25,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:50:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:25,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 23:50:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:25,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 23:50:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:25,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 23:50:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:25,868 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-06 23:50:25,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:50:25,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738775706] [2021-12-06 23:50:25,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738775706] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:50:25,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:50:25,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:50:25,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982897602] [2021-12-06 23:50:25,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:50:25,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:50:25,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:50:25,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:50:25,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:50:25,871 INFO L87 Difference]: Start difference. First operand 3858 states and 5415 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 23:50:31,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:50:31,347 INFO L93 Difference]: Finished difference Result 4184 states and 5949 transitions. [2021-12-06 23:50:31,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:50:31,348 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 77 [2021-12-06 23:50:31,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:50:31,367 INFO L225 Difference]: With dead ends: 4184 [2021-12-06 23:50:31,368 INFO L226 Difference]: Without dead ends: 4182 [2021-12-06 23:50:31,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:50:31,370 INFO L933 BasicCegarLoop]: 4920 mSDtfsCounter, 5535 mSDsluCounter, 9779 mSDsCounter, 0 mSdLazyCounter, 4450 mSolverCounterSat, 2885 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6143 SdHoareTripleChecker+Valid, 14699 SdHoareTripleChecker+Invalid, 7335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2885 IncrementalHoareTripleChecker+Valid, 4450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:50:31,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6143 Valid, 14699 Invalid, 7335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2885 Valid, 4450 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2021-12-06 23:50:31,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4182 states. [2021-12-06 23:50:31,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4182 to 3862. [2021-12-06 23:50:31,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3862 states, 2493 states have (on average 1.2527075812274369) internal successors, (3123), 2596 states have internal predecessors, (3123), 1149 states have call successors, (1149), 218 states have call predecessors, (1149), 217 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2021-12-06 23:50:31,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 5418 transitions. [2021-12-06 23:50:31,515 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 5418 transitions. Word has length 77 [2021-12-06 23:50:31,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:50:31,515 INFO L470 AbstractCegarLoop]: Abstraction has 3862 states and 5418 transitions. [2021-12-06 23:50:31,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 23:50:31,516 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 5418 transitions. [2021-12-06 23:50:31,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-06 23:50:31,517 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:50:31,518 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:50:31,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 23:50:31,518 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 23:50:31,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:50:31,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1057705693, now seen corresponding path program 1 times [2021-12-06 23:50:31,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:50:31,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523072921] [2021-12-06 23:50:31,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:50:31,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:50:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:31,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:50:31,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:31,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:50:31,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:31,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:50:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:31,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 23:50:31,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:31,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:50:31,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:31,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:50:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:31,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 23:50:31,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:31,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:50:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:31,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 23:50:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:31,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 23:50:31,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:31,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 23:50:31,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:31,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 23:50:31,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:31,802 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-06 23:50:31,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:50:31,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523072921] [2021-12-06 23:50:31,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523072921] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:50:31,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:50:31,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:50:31,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822648809] [2021-12-06 23:50:31,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:50:31,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:50:31,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:50:31,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:50:31,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:50:31,804 INFO L87 Difference]: Start difference. First operand 3862 states and 5418 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 23:50:38,942 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:50:41,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:50:41,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:50:41,565 INFO L93 Difference]: Finished difference Result 4188 states and 5952 transitions. [2021-12-06 23:50:41,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:50:41,565 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 82 [2021-12-06 23:50:41,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:50:41,587 INFO L225 Difference]: With dead ends: 4188 [2021-12-06 23:50:41,588 INFO L226 Difference]: Without dead ends: 4186 [2021-12-06 23:50:41,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:50:41,590 INFO L933 BasicCegarLoop]: 4926 mSDtfsCounter, 5532 mSDsluCounter, 9793 mSDsCounter, 0 mSdLazyCounter, 4448 mSolverCounterSat, 2882 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6138 SdHoareTripleChecker+Valid, 14719 SdHoareTripleChecker+Invalid, 7332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2882 IncrementalHoareTripleChecker+Valid, 4448 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2021-12-06 23:50:41,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6138 Valid, 14719 Invalid, 7332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2882 Valid, 4448 Invalid, 2 Unknown, 0 Unchecked, 9.5s Time] [2021-12-06 23:50:41,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4186 states. [2021-12-06 23:50:41,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4186 to 3866. [2021-12-06 23:50:41,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3866 states, 2496 states have (on average 1.2524038461538463) internal successors, (3126), 2599 states have internal predecessors, (3126), 1149 states have call successors, (1149), 219 states have call predecessors, (1149), 218 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2021-12-06 23:50:41,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3866 states to 3866 states and 5421 transitions. [2021-12-06 23:50:41,784 INFO L78 Accepts]: Start accepts. Automaton has 3866 states and 5421 transitions. Word has length 82 [2021-12-06 23:50:41,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:50:41,784 INFO L470 AbstractCegarLoop]: Abstraction has 3866 states and 5421 transitions. [2021-12-06 23:50:41,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 23:50:41,784 INFO L276 IsEmpty]: Start isEmpty. Operand 3866 states and 5421 transitions. [2021-12-06 23:50:41,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-12-06 23:50:41,786 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:50:41,786 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:50:41,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 23:50:41,786 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 23:50:41,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:50:41,787 INFO L85 PathProgramCache]: Analyzing trace with hash 686465499, now seen corresponding path program 1 times [2021-12-06 23:50:41,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:50:41,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142186022] [2021-12-06 23:50:41,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:50:41,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:50:41,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:41,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:50:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:42,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:50:42,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:42,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:50:42,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:42,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 23:50:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:42,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:50:42,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:42,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:50:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:42,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 23:50:42,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:42,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:50:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:42,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 23:50:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:42,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 23:50:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:42,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-06 23:50:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:42,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 23:50:42,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:42,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 23:50:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:42,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-06 23:50:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:42,091 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-12-06 23:50:42,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:50:42,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142186022] [2021-12-06 23:50:42,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142186022] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:50:42,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:50:42,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:50:42,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097046481] [2021-12-06 23:50:42,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:50:42,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:50:42,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:50:42,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:50:42,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:50:42,093 INFO L87 Difference]: Start difference. First operand 3866 states and 5421 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-06 23:50:49,692 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:50:51,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:50:52,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:50:52,445 INFO L93 Difference]: Finished difference Result 4192 states and 5955 transitions. [2021-12-06 23:50:52,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:50:52,446 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 102 [2021-12-06 23:50:52,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:50:52,470 INFO L225 Difference]: With dead ends: 4192 [2021-12-06 23:50:52,470 INFO L226 Difference]: Without dead ends: 4190 [2021-12-06 23:50:52,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:50:52,473 INFO L933 BasicCegarLoop]: 4924 mSDtfsCounter, 5520 mSDsluCounter, 9786 mSDsCounter, 0 mSdLazyCounter, 4448 mSolverCounterSat, 2881 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6128 SdHoareTripleChecker+Valid, 14710 SdHoareTripleChecker+Invalid, 7331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2881 IncrementalHoareTripleChecker+Valid, 4448 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:50:52,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6128 Valid, 14710 Invalid, 7331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2881 Valid, 4448 Invalid, 2 Unknown, 0 Unchecked, 10.0s Time] [2021-12-06 23:50:52,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4190 states. [2021-12-06 23:50:52,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4190 to 3870. [2021-12-06 23:50:52,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3870 states, 2499 states have (on average 1.2521008403361344) internal successors, (3129), 2602 states have internal predecessors, (3129), 1149 states have call successors, (1149), 220 states have call predecessors, (1149), 219 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2021-12-06 23:50:52,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3870 states to 3870 states and 5424 transitions. [2021-12-06 23:50:52,639 INFO L78 Accepts]: Start accepts. Automaton has 3870 states and 5424 transitions. Word has length 102 [2021-12-06 23:50:52,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:50:52,640 INFO L470 AbstractCegarLoop]: Abstraction has 3870 states and 5424 transitions. [2021-12-06 23:50:52,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-06 23:50:52,640 INFO L276 IsEmpty]: Start isEmpty. Operand 3870 states and 5424 transitions. [2021-12-06 23:50:52,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-06 23:50:52,641 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:50:52,641 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:50:52,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 23:50:52,641 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 23:50:52,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:50:52,642 INFO L85 PathProgramCache]: Analyzing trace with hash -174199179, now seen corresponding path program 1 times [2021-12-06 23:50:52,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:50:52,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196879171] [2021-12-06 23:50:52,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:50:52,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:50:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:52,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:50:52,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:52,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:50:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:52,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:50:52,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:52,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 23:50:52,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:52,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:50:52,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:52,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:50:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:52,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 23:50:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:52,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:50:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:52,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 23:50:52,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:52,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 23:50:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:52,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-06 23:50:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:52,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 23:50:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:52,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 23:50:52,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:52,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-06 23:50:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:52,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 23:50:52,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:52,931 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-12-06 23:50:52,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:50:52,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196879171] [2021-12-06 23:50:52,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196879171] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:50:52,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:50:52,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:50:52,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676902901] [2021-12-06 23:50:52,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:50:52,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:50:52,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:50:52,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:50:52,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:50:52,933 INFO L87 Difference]: Start difference. First operand 3870 states and 5424 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-06 23:50:59,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:50:59,095 INFO L93 Difference]: Finished difference Result 4196 states and 5958 transitions. [2021-12-06 23:50:59,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:50:59,096 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 107 [2021-12-06 23:50:59,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:50:59,111 INFO L225 Difference]: With dead ends: 4196 [2021-12-06 23:50:59,111 INFO L226 Difference]: Without dead ends: 4194 [2021-12-06 23:50:59,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:50:59,114 INFO L933 BasicCegarLoop]: 4925 mSDtfsCounter, 5521 mSDsluCounter, 9790 mSDsCounter, 0 mSdLazyCounter, 4450 mSolverCounterSat, 2880 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6127 SdHoareTripleChecker+Valid, 14715 SdHoareTripleChecker+Invalid, 7330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2880 IncrementalHoareTripleChecker+Valid, 4450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-12-06 23:50:59,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6127 Valid, 14715 Invalid, 7330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2880 Valid, 4450 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2021-12-06 23:50:59,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4194 states. [2021-12-06 23:50:59,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4194 to 3874. [2021-12-06 23:50:59,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3874 states, 2502 states have (on average 1.2517985611510791) internal successors, (3132), 2605 states have internal predecessors, (3132), 1149 states have call successors, (1149), 221 states have call predecessors, (1149), 220 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2021-12-06 23:50:59,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3874 states to 3874 states and 5427 transitions. [2021-12-06 23:50:59,254 INFO L78 Accepts]: Start accepts. Automaton has 3874 states and 5427 transitions. Word has length 107 [2021-12-06 23:50:59,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:50:59,255 INFO L470 AbstractCegarLoop]: Abstraction has 3874 states and 5427 transitions. [2021-12-06 23:50:59,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-06 23:50:59,255 INFO L276 IsEmpty]: Start isEmpty. Operand 3874 states and 5427 transitions. [2021-12-06 23:50:59,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-06 23:50:59,256 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:50:59,256 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:50:59,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 23:50:59,256 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 23:50:59,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:50:59,257 INFO L85 PathProgramCache]: Analyzing trace with hash -670987813, now seen corresponding path program 1 times [2021-12-06 23:50:59,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:50:59,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120960215] [2021-12-06 23:50:59,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:50:59,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:50:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:59,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:50:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:59,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:50:59,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:59,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:50:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:59,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 23:50:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:59,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:50:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:59,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:50:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:59,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 23:50:59,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:59,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:50:59,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:59,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 23:50:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:59,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 23:50:59,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:59,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-06 23:50:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:59,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 23:50:59,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:59,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 23:50:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:59,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-06 23:50:59,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:59,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 23:50:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:59,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-06 23:50:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:59,587 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-06 23:50:59,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:50:59,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120960215] [2021-12-06 23:50:59,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120960215] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:50:59,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:50:59,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:50:59,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687844039] [2021-12-06 23:50:59,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:50:59,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:50:59,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:50:59,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:50:59,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:50:59,589 INFO L87 Difference]: Start difference. First operand 3874 states and 5427 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 23:51:05,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:51:05,973 INFO L93 Difference]: Finished difference Result 4200 states and 5961 transitions. [2021-12-06 23:51:05,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:51:05,974 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 112 [2021-12-06 23:51:05,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:51:05,989 INFO L225 Difference]: With dead ends: 4200 [2021-12-06 23:51:05,990 INFO L226 Difference]: Without dead ends: 4198 [2021-12-06 23:51:05,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:51:05,992 INFO L933 BasicCegarLoop]: 4923 mSDtfsCounter, 5520 mSDsluCounter, 9783 mSDsCounter, 0 mSdLazyCounter, 4450 mSolverCounterSat, 2879 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6129 SdHoareTripleChecker+Valid, 14706 SdHoareTripleChecker+Invalid, 7329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2879 IncrementalHoareTripleChecker+Valid, 4450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:51:05,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6129 Valid, 14706 Invalid, 7329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2879 Valid, 4450 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2021-12-06 23:51:05,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4198 states. [2021-12-06 23:51:06,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4198 to 3878. [2021-12-06 23:51:06,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3878 states, 2505 states have (on average 1.251497005988024) internal successors, (3135), 2608 states have internal predecessors, (3135), 1149 states have call successors, (1149), 222 states have call predecessors, (1149), 221 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2021-12-06 23:51:06,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3878 states to 3878 states and 5430 transitions. [2021-12-06 23:51:06,137 INFO L78 Accepts]: Start accepts. Automaton has 3878 states and 5430 transitions. Word has length 112 [2021-12-06 23:51:06,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:51:06,137 INFO L470 AbstractCegarLoop]: Abstraction has 3878 states and 5430 transitions. [2021-12-06 23:51:06,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 23:51:06,137 INFO L276 IsEmpty]: Start isEmpty. Operand 3878 states and 5430 transitions. [2021-12-06 23:51:06,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-12-06 23:51:06,139 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:51:06,139 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:51:06,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 23:51:06,139 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 23:51:06,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:51:06,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1161170211, now seen corresponding path program 1 times [2021-12-06 23:51:06,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:51:06,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734999907] [2021-12-06 23:51:06,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:51:06,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:51:06,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:06,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:51:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:06,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:51:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:06,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:51:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:06,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 23:51:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:06,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:51:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:06,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:51:06,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:06,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 23:51:06,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:06,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:51:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:06,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 23:51:06,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:06,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 23:51:06,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:06,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 23:51:06,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:06,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 23:51:06,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:06,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-06 23:51:06,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:06,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 23:51:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:06,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 23:51:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:06,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-06 23:51:06,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:06,419 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2021-12-06 23:51:06,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:51:06,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734999907] [2021-12-06 23:51:06,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734999907] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:51:06,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:51:06,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:51:06,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157599101] [2021-12-06 23:51:06,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:51:06,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:51:06,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:51:06,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:51:06,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:51:06,421 INFO L87 Difference]: Start difference. First operand 3878 states and 5430 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 23:51:14,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:51:17,003 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:51:17,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:51:17,469 INFO L93 Difference]: Finished difference Result 4204 states and 5964 transitions. [2021-12-06 23:51:17,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:51:17,470 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 102 [2021-12-06 23:51:17,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:51:17,480 INFO L225 Difference]: With dead ends: 4204 [2021-12-06 23:51:17,480 INFO L226 Difference]: Without dead ends: 4202 [2021-12-06 23:51:17,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:51:17,481 INFO L933 BasicCegarLoop]: 4925 mSDtfsCounter, 5532 mSDsluCounter, 9790 mSDsCounter, 0 mSdLazyCounter, 4448 mSolverCounterSat, 2878 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6139 SdHoareTripleChecker+Valid, 14715 SdHoareTripleChecker+Invalid, 7328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2878 IncrementalHoareTripleChecker+Valid, 4448 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2021-12-06 23:51:17,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6139 Valid, 14715 Invalid, 7328 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2878 Valid, 4448 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2021-12-06 23:51:17,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4202 states. [2021-12-06 23:51:17,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4202 to 3882. [2021-12-06 23:51:17,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3882 states, 2508 states have (on average 1.2511961722488039) internal successors, (3138), 2611 states have internal predecessors, (3138), 1149 states have call successors, (1149), 223 states have call predecessors, (1149), 222 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2021-12-06 23:51:17,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3882 states to 3882 states and 5433 transitions. [2021-12-06 23:51:17,630 INFO L78 Accepts]: Start accepts. Automaton has 3882 states and 5433 transitions. Word has length 102 [2021-12-06 23:51:17,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:51:17,630 INFO L470 AbstractCegarLoop]: Abstraction has 3882 states and 5433 transitions. [2021-12-06 23:51:17,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 23:51:17,630 INFO L276 IsEmpty]: Start isEmpty. Operand 3882 states and 5433 transitions. [2021-12-06 23:51:17,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-06 23:51:17,632 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:51:17,632 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:51:17,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 23:51:17,632 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 23:51:17,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:51:17,633 INFO L85 PathProgramCache]: Analyzing trace with hash -2012732965, now seen corresponding path program 1 times [2021-12-06 23:51:17,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:51:17,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450969573] [2021-12-06 23:51:17,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:51:17,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:51:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:17,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:51:17,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:17,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:51:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:17,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:51:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:17,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 23:51:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:17,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:51:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:17,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:51:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:17,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 23:51:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:17,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:51:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:17,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 23:51:17,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:17,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 23:51:17,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:17,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-06 23:51:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:17,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 23:51:17,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:17,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 23:51:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:17,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-06 23:51:17,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:17,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 23:51:17,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:17,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-06 23:51:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:17,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 23:51:17,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:17,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 23:51:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:17,928 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-12-06 23:51:17,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:51:17,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450969573] [2021-12-06 23:51:17,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450969573] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:51:17,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:51:17,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:51:17,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125203156] [2021-12-06 23:51:17,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:51:17,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:51:17,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:51:17,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:51:17,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:51:17,930 INFO L87 Difference]: Start difference. First operand 3882 states and 5433 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-06 23:51:25,790 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:51:26,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:51:26,331 INFO L93 Difference]: Finished difference Result 4289 states and 6043 transitions. [2021-12-06 23:51:26,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 23:51:26,331 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 122 [2021-12-06 23:51:26,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:51:26,344 INFO L225 Difference]: With dead ends: 4289 [2021-12-06 23:51:26,344 INFO L226 Difference]: Without dead ends: 4287 [2021-12-06 23:51:26,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:51:26,347 INFO L933 BasicCegarLoop]: 4966 mSDtfsCounter, 5151 mSDsluCounter, 10299 mSDsCounter, 0 mSdLazyCounter, 4631 mSolverCounterSat, 2830 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5664 SdHoareTripleChecker+Valid, 15265 SdHoareTripleChecker+Invalid, 7462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2830 IncrementalHoareTripleChecker+Valid, 4631 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:51:26,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5664 Valid, 15265 Invalid, 7462 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2830 Valid, 4631 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2021-12-06 23:51:26,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4287 states. [2021-12-06 23:51:26,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4287 to 3965. [2021-12-06 23:51:26,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3965 states, 2564 states have (on average 1.2472698907956319) internal successors, (3198), 2667 states have internal predecessors, (3198), 1158 states have call successors, (1158), 241 states have call predecessors, (1158), 240 states have return successors, (1155), 1123 states have call predecessors, (1155), 1155 states have call successors, (1155) [2021-12-06 23:51:26,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3965 states to 3965 states and 5511 transitions. [2021-12-06 23:51:26,518 INFO L78 Accepts]: Start accepts. Automaton has 3965 states and 5511 transitions. Word has length 122 [2021-12-06 23:51:26,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:51:26,519 INFO L470 AbstractCegarLoop]: Abstraction has 3965 states and 5511 transitions. [2021-12-06 23:51:26,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-06 23:51:26,519 INFO L276 IsEmpty]: Start isEmpty. Operand 3965 states and 5511 transitions. [2021-12-06 23:51:26,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-06 23:51:26,521 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:51:26,521 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:51:26,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 23:51:26,521 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 23:51:26,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:51:26,521 INFO L85 PathProgramCache]: Analyzing trace with hash -312160907, now seen corresponding path program 1 times [2021-12-06 23:51:26,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:51:26,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368844520] [2021-12-06 23:51:26,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:51:26,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:51:26,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:26,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:51:26,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:26,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:51:26,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:26,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:51:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:26,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 23:51:26,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:26,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:51:26,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:26,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:51:26,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:26,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 23:51:26,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:26,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:51:26,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:26,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 23:51:26,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:26,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 23:51:26,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:26,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-06 23:51:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:26,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 23:51:26,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:26,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 23:51:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:26,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-06 23:51:26,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:26,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 23:51:26,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:26,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-06 23:51:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:26,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 23:51:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:26,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 23:51:26,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:26,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 23:51:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:26,840 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-12-06 23:51:26,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:51:26,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368844520] [2021-12-06 23:51:26,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368844520] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:51:26,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:51:26,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:51:26,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742018859] [2021-12-06 23:51:26,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:51:26,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:51:26,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:51:26,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:51:26,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:51:26,841 INFO L87 Difference]: Start difference. First operand 3965 states and 5511 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 23:51:35,258 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:51:37,496 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:51:38,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:51:38,074 INFO L93 Difference]: Finished difference Result 4291 states and 6045 transitions. [2021-12-06 23:51:38,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:51:38,074 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 127 [2021-12-06 23:51:38,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:51:38,085 INFO L225 Difference]: With dead ends: 4291 [2021-12-06 23:51:38,086 INFO L226 Difference]: Without dead ends: 4289 [2021-12-06 23:51:38,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:51:38,087 INFO L933 BasicCegarLoop]: 4924 mSDtfsCounter, 5520 mSDsluCounter, 9786 mSDsCounter, 0 mSdLazyCounter, 4448 mSolverCounterSat, 2876 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6128 SdHoareTripleChecker+Valid, 14710 SdHoareTripleChecker+Invalid, 7326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2876 IncrementalHoareTripleChecker+Valid, 4448 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2021-12-06 23:51:38,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6128 Valid, 14710 Invalid, 7326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2876 Valid, 4448 Invalid, 2 Unknown, 0 Unchecked, 10.9s Time] [2021-12-06 23:51:38,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4289 states. [2021-12-06 23:51:38,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4289 to 3969. [2021-12-06 23:51:38,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3969 states, 2567 states have (on average 1.246980911569926) internal successors, (3201), 2670 states have internal predecessors, (3201), 1158 states have call successors, (1158), 242 states have call predecessors, (1158), 241 states have return successors, (1155), 1123 states have call predecessors, (1155), 1155 states have call successors, (1155) [2021-12-06 23:51:38,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3969 states to 3969 states and 5514 transitions. [2021-12-06 23:51:38,258 INFO L78 Accepts]: Start accepts. Automaton has 3969 states and 5514 transitions. Word has length 127 [2021-12-06 23:51:38,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:51:38,259 INFO L470 AbstractCegarLoop]: Abstraction has 3969 states and 5514 transitions. [2021-12-06 23:51:38,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 23:51:38,259 INFO L276 IsEmpty]: Start isEmpty. Operand 3969 states and 5514 transitions. [2021-12-06 23:51:38,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-06 23:51:38,261 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:51:38,261 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:51:38,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 23:51:38,261 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 23:51:38,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:51:38,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1880387347, now seen corresponding path program 1 times [2021-12-06 23:51:38,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:51:38,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546665323] [2021-12-06 23:51:38,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:51:38,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:51:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:38,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:51:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:38,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:51:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:38,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:51:38,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:38,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 23:51:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:38,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:51:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:38,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:51:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:38,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 23:51:38,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:38,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:51:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:38,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 23:51:38,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:38,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 23:51:38,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:38,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 23:51:38,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:38,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 23:51:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:38,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-06 23:51:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:38,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 23:51:38,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:38,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 23:51:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:38,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-06 23:51:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:38,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 23:51:38,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:38,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-06 23:51:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:38,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 23:51:38,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:38,554 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2021-12-06 23:51:38,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:51:38,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546665323] [2021-12-06 23:51:38,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546665323] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:51:38,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:51:38,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:51:38,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113878602] [2021-12-06 23:51:38,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:51:38,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:51:38,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:51:38,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:51:38,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:51:38,555 INFO L87 Difference]: Start difference. First operand 3969 states and 5514 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 23:51:44,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:51:44,615 INFO L93 Difference]: Finished difference Result 4295 states and 6048 transitions. [2021-12-06 23:51:44,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:51:44,616 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 117 [2021-12-06 23:51:44,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:51:44,628 INFO L225 Difference]: With dead ends: 4295 [2021-12-06 23:51:44,628 INFO L226 Difference]: Without dead ends: 4293 [2021-12-06 23:51:44,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:51:44,630 INFO L933 BasicCegarLoop]: 4920 mSDtfsCounter, 5534 mSDsluCounter, 9778 mSDsCounter, 0 mSdLazyCounter, 4450 mSolverCounterSat, 2877 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6143 SdHoareTripleChecker+Valid, 14698 SdHoareTripleChecker+Invalid, 7327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2877 IncrementalHoareTripleChecker+Valid, 4450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-12-06 23:51:44,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6143 Valid, 14698 Invalid, 7327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2877 Valid, 4450 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2021-12-06 23:51:44,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4293 states. [2021-12-06 23:51:44,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4293 to 3973. [2021-12-06 23:51:44,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3973 states, 2570 states have (on average 1.246692607003891) internal successors, (3204), 2673 states have internal predecessors, (3204), 1158 states have call successors, (1158), 243 states have call predecessors, (1158), 242 states have return successors, (1155), 1123 states have call predecessors, (1155), 1155 states have call successors, (1155) [2021-12-06 23:51:44,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3973 states to 3973 states and 5517 transitions. [2021-12-06 23:51:44,811 INFO L78 Accepts]: Start accepts. Automaton has 3973 states and 5517 transitions. Word has length 117 [2021-12-06 23:51:44,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:51:44,812 INFO L470 AbstractCegarLoop]: Abstraction has 3973 states and 5517 transitions. [2021-12-06 23:51:44,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 23:51:44,812 INFO L276 IsEmpty]: Start isEmpty. Operand 3973 states and 5517 transitions. [2021-12-06 23:51:44,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-06 23:51:44,814 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:51:44,814 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 12, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:51:44,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 23:51:44,814 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 23:51:44,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:51:44,814 INFO L85 PathProgramCache]: Analyzing trace with hash -465557213, now seen corresponding path program 1 times [2021-12-06 23:51:44,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:51:44,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645554109] [2021-12-06 23:51:44,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:51:44,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:51:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:45,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:51:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:45,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:51:45,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:45,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:51:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:45,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 23:51:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:45,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:51:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:45,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:51:45,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:45,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 23:51:45,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:45,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:51:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:45,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 23:51:45,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:45,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 23:51:45,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:45,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 23:51:45,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:45,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 23:51:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:45,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-06 23:51:45,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:45,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 23:51:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:45,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 23:51:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:45,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-06 23:51:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:45,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 23:51:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:45,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-06 23:51:45,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:45,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 23:51:45,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:45,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 23:51:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:45,097 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-12-06 23:51:45,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:51:45,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645554109] [2021-12-06 23:51:45,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645554109] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:51:45,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:51:45,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:51:45,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284091478] [2021-12-06 23:51:45,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:51:45,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:51:45,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:51:45,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:51:45,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:51:45,098 INFO L87 Difference]: Start difference. First operand 3973 states and 5517 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-06 23:51:51,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:51:51,693 INFO L93 Difference]: Finished difference Result 4299 states and 6051 transitions. [2021-12-06 23:51:51,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:51:51,694 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 122 [2021-12-06 23:51:51,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:51:51,703 INFO L225 Difference]: With dead ends: 4299 [2021-12-06 23:51:51,703 INFO L226 Difference]: Without dead ends: 4297 [2021-12-06 23:51:51,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:51:51,705 INFO L933 BasicCegarLoop]: 4925 mSDtfsCounter, 5531 mSDsluCounter, 9789 mSDsCounter, 0 mSdLazyCounter, 4450 mSolverCounterSat, 2874 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6139 SdHoareTripleChecker+Valid, 14714 SdHoareTripleChecker+Invalid, 7324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2874 IncrementalHoareTripleChecker+Valid, 4450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:51:51,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6139 Valid, 14714 Invalid, 7324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2874 Valid, 4450 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2021-12-06 23:51:51,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4297 states. [2021-12-06 23:51:51,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4297 to 3977. [2021-12-06 23:51:51,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3977 states, 2573 states have (on average 1.2464049747376602) internal successors, (3207), 2676 states have internal predecessors, (3207), 1158 states have call successors, (1158), 244 states have call predecessors, (1158), 243 states have return successors, (1155), 1123 states have call predecessors, (1155), 1155 states have call successors, (1155) [2021-12-06 23:51:51,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3977 states to 3977 states and 5520 transitions. [2021-12-06 23:51:51,900 INFO L78 Accepts]: Start accepts. Automaton has 3977 states and 5520 transitions. Word has length 122 [2021-12-06 23:51:51,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:51:51,900 INFO L470 AbstractCegarLoop]: Abstraction has 3977 states and 5520 transitions. [2021-12-06 23:51:51,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-06 23:51:51,901 INFO L276 IsEmpty]: Start isEmpty. Operand 3977 states and 5520 transitions. [2021-12-06 23:51:51,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-06 23:51:51,902 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:51:51,903 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:51:51,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 23:51:51,903 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 23:51:51,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:51:51,903 INFO L85 PathProgramCache]: Analyzing trace with hash -515024275, now seen corresponding path program 1 times [2021-12-06 23:51:51,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:51:51,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400934301] [2021-12-06 23:51:51,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:51:51,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:51:51,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:52,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:51:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:52,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:51:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:52,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:51:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:52,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 23:51:52,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:52,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:51:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:52,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:51:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:52,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 23:51:52,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:52,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:51:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:52,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 23:51:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:52,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 23:51:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:52,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 23:51:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:52,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 23:51:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:52,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-06 23:51:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:52,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 23:51:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:52,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 23:51:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:52,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-06 23:51:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:52,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 23:51:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:52,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-06 23:51:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:52,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 23:51:52,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:52,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 23:51:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:52,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 23:51:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:52,183 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2021-12-06 23:51:52,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:51:52,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400934301] [2021-12-06 23:51:52,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400934301] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:51:52,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:51:52,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:51:52,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605868871] [2021-12-06 23:51:52,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:51:52,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:51:52,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:51:52,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:51:52,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:51:52,186 INFO L87 Difference]: Start difference. First operand 3977 states and 5520 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 23:51:58,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:51:58,889 INFO L93 Difference]: Finished difference Result 4303 states and 6054 transitions. [2021-12-06 23:51:58,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:51:58,890 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 127 [2021-12-06 23:51:58,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:51:58,903 INFO L225 Difference]: With dead ends: 4303 [2021-12-06 23:51:58,903 INFO L226 Difference]: Without dead ends: 4299 [2021-12-06 23:51:58,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:51:58,905 INFO L933 BasicCegarLoop]: 4925 mSDtfsCounter, 5531 mSDsluCounter, 9789 mSDsCounter, 0 mSdLazyCounter, 4450 mSolverCounterSat, 2873 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6139 SdHoareTripleChecker+Valid, 14714 SdHoareTripleChecker+Invalid, 7323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2873 IncrementalHoareTripleChecker+Valid, 4450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-12-06 23:51:58,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6139 Valid, 14714 Invalid, 7323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2873 Valid, 4450 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2021-12-06 23:51:58,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4299 states. [2021-12-06 23:51:59,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4299 to 3979. [2021-12-06 23:51:59,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3979 states, 2575 states have (on average 1.2458252427184466) internal successors, (3208), 2677 states have internal predecessors, (3208), 1158 states have call successors, (1158), 245 states have call predecessors, (1158), 243 states have return successors, (1155), 1123 states have call predecessors, (1155), 1155 states have call successors, (1155) [2021-12-06 23:51:59,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3979 states to 3979 states and 5521 transitions. [2021-12-06 23:51:59,124 INFO L78 Accepts]: Start accepts. Automaton has 3979 states and 5521 transitions. Word has length 127 [2021-12-06 23:51:59,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:51:59,125 INFO L470 AbstractCegarLoop]: Abstraction has 3979 states and 5521 transitions. [2021-12-06 23:51:59,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 23:51:59,125 INFO L276 IsEmpty]: Start isEmpty. Operand 3979 states and 5521 transitions. [2021-12-06 23:51:59,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-06 23:51:59,127 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:51:59,127 INFO L514 BasicCegarLoop]: trace histogram [15, 14, 14, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:51:59,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 23:51:59,127 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 23:51:59,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:51:59,127 INFO L85 PathProgramCache]: Analyzing trace with hash 540704547, now seen corresponding path program 1 times [2021-12-06 23:51:59,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:51:59,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485333656] [2021-12-06 23:51:59,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:51:59,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:51:59,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:59,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:51:59,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:59,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:51:59,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:59,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:51:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:59,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 23:51:59,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:59,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:51:59,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:59,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:51:59,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:59,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 23:51:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:59,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:51:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:59,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 23:51:59,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:59,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 23:51:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:59,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 23:51:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:59,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 23:51:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:59,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-06 23:51:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:59,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 23:51:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:59,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 23:51:59,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:59,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-06 23:51:59,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:59,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 23:51:59,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:59,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-06 23:51:59,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:59,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 23:51:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:59,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 23:51:59,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:59,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 23:51:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:59,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-06 23:51:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:59,398 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2021-12-06 23:51:59,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:51:59,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485333656] [2021-12-06 23:51:59,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485333656] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:51:59,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:51:59,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:51:59,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581896831] [2021-12-06 23:51:59,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:51:59,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:51:59,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:51:59,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:51:59,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:51:59,400 INFO L87 Difference]: Start difference. First operand 3979 states and 5521 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-06 23:52:07,621 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:52:08,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:52:08,156 INFO L93 Difference]: Finished difference Result 4363 states and 6109 transitions. [2021-12-06 23:52:08,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 23:52:08,157 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 132 [2021-12-06 23:52:08,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:52:08,167 INFO L225 Difference]: With dead ends: 4363 [2021-12-06 23:52:08,167 INFO L226 Difference]: Without dead ends: 4203 [2021-12-06 23:52:08,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:52:08,169 INFO L933 BasicCegarLoop]: 4917 mSDtfsCounter, 5538 mSDsluCounter, 9827 mSDsCounter, 0 mSdLazyCounter, 4515 mSolverCounterSat, 2884 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6141 SdHoareTripleChecker+Valid, 14744 SdHoareTripleChecker+Invalid, 7400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2884 IncrementalHoareTripleChecker+Valid, 4515 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-12-06 23:52:08,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6141 Valid, 14744 Invalid, 7400 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2884 Valid, 4515 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2021-12-06 23:52:08,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4203 states. [2021-12-06 23:52:08,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4203 to 3879. [2021-12-06 23:52:08,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3879 states, 2514 states have (on average 1.249005568814638) internal successors, (3140), 2610 states have internal predecessors, (3140), 1122 states have call successors, (1122), 241 states have call predecessors, (1122), 241 states have return successors, (1122), 1092 states have call predecessors, (1122), 1122 states have call successors, (1122) [2021-12-06 23:52:08,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3879 states to 3879 states and 5384 transitions. [2021-12-06 23:52:08,366 INFO L78 Accepts]: Start accepts. Automaton has 3879 states and 5384 transitions. Word has length 132 [2021-12-06 23:52:08,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:52:08,366 INFO L470 AbstractCegarLoop]: Abstraction has 3879 states and 5384 transitions. [2021-12-06 23:52:08,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-06 23:52:08,366 INFO L276 IsEmpty]: Start isEmpty. Operand 3879 states and 5384 transitions. [2021-12-06 23:52:08,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-12-06 23:52:08,368 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:52:08,368 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:52:08,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-06 23:52:08,368 INFO L402 AbstractCegarLoop]: === Iteration 16 === 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)] === [2021-12-06 23:52:08,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:52:08,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1204685702, now seen corresponding path program 1 times [2021-12-06 23:52:08,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:52:08,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450788138] [2021-12-06 23:52:08,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:52:08,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:52:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:08,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:52:08,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:08,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:52:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:08,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:52:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:08,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 23:52:08,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:08,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:52:08,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:08,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:52:08,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:08,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 23:52:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:08,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:52:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:08,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 23:52:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:08,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 23:52:08,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:08,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:52:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:08,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:52:08,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:08,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:52:08,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:08,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 23:52:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:08,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 23:52:08,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:08,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:52:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:08,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:52:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:08,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:52:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:08,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 23:52:08,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:08,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-06 23:52:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:08,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 23:52:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:08,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:52:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:08,772 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2021-12-06 23:52:08,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:52:08,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450788138] [2021-12-06 23:52:08,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450788138] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:52:08,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:52:08,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:52:08,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970871536] [2021-12-06 23:52:08,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:52:08,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:52:08,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:52:08,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:52:08,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:52:08,774 INFO L87 Difference]: Start difference. First operand 3879 states and 5384 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2021-12-06 23:52:13,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:52:13,944 INFO L93 Difference]: Finished difference Result 7996 states and 11205 transitions. [2021-12-06 23:52:13,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 23:52:13,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2021-12-06 23:52:13,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:52:13,963 INFO L225 Difference]: With dead ends: 7996 [2021-12-06 23:52:13,963 INFO L226 Difference]: Without dead ends: 4200 [2021-12-06 23:52:13,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:52:13,980 INFO L933 BasicCegarLoop]: 4802 mSDtfsCounter, 1360 mSDsluCounter, 5679 mSDsCounter, 0 mSdLazyCounter, 2789 mSolverCounterSat, 1234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1853 SdHoareTripleChecker+Valid, 10481 SdHoareTripleChecker+Invalid, 4023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1234 IncrementalHoareTripleChecker+Valid, 2789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-12-06 23:52:13,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1853 Valid, 10481 Invalid, 4023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1234 Valid, 2789 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2021-12-06 23:52:13,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4200 states. [2021-12-06 23:52:14,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4200 to 3880. [2021-12-06 23:52:14,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3880 states, 2515 states have (on average 1.2489065606361829) internal successors, (3141), 2611 states have internal predecessors, (3141), 1122 states have call successors, (1122), 241 states have call predecessors, (1122), 241 states have return successors, (1122), 1092 states have call predecessors, (1122), 1122 states have call successors, (1122) [2021-12-06 23:52:14,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3880 states to 3880 states and 5385 transitions. [2021-12-06 23:52:14,206 INFO L78 Accepts]: Start accepts. Automaton has 3880 states and 5385 transitions. Word has length 155 [2021-12-06 23:52:14,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:52:14,206 INFO L470 AbstractCegarLoop]: Abstraction has 3880 states and 5385 transitions. [2021-12-06 23:52:14,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2021-12-06 23:52:14,206 INFO L276 IsEmpty]: Start isEmpty. Operand 3880 states and 5385 transitions. [2021-12-06 23:52:14,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-12-06 23:52:14,208 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:52:14,208 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:52:14,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-06 23:52:14,209 INFO L402 AbstractCegarLoop]: === Iteration 17 === 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)] === [2021-12-06 23:52:14,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:52:14,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1905750280, now seen corresponding path program 1 times [2021-12-06 23:52:14,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:52:14,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460046791] [2021-12-06 23:52:14,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:52:14,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:52:14,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:14,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:52:14,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:14,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:52:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:14,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:52:14,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:14,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 23:52:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:14,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:52:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:14,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:52:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:14,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 23:52:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:14,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:52:14,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:14,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 23:52:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:14,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 23:52:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:14,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:52:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:14,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:52:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:14,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:52:14,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:14,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 23:52:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:14,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 23:52:14,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:14,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:52:14,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:14,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:52:14,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:14,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:52:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:14,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 23:52:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:14,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-06 23:52:14,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:14,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 23:52:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:14,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:52:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:14,752 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2021-12-06 23:52:14,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:52:14,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460046791] [2021-12-06 23:52:14,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460046791] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:52:14,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:52:14,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:52:14,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215859364] [2021-12-06 23:52:14,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:52:14,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:52:14,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:52:14,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:52:14,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:52:14,754 INFO L87 Difference]: Start difference. First operand 3880 states and 5385 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 23:52:23,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:52:25,561 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:52:26,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:52:26,158 INFO L93 Difference]: Finished difference Result 4208 states and 5920 transitions. [2021-12-06 23:52:26,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 23:52:26,160 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2021-12-06 23:52:26,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:52:26,173 INFO L225 Difference]: With dead ends: 4208 [2021-12-06 23:52:26,173 INFO L226 Difference]: Without dead ends: 4206 [2021-12-06 23:52:26,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:52:26,175 INFO L933 BasicCegarLoop]: 4822 mSDtfsCounter, 5025 mSDsluCounter, 9966 mSDsCounter, 0 mSdLazyCounter, 4549 mSolverCounterSat, 2745 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5523 SdHoareTripleChecker+Valid, 14788 SdHoareTripleChecker+Invalid, 7296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2745 IncrementalHoareTripleChecker+Valid, 4549 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2021-12-06 23:52:26,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5523 Valid, 14788 Invalid, 7296 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2745 Valid, 4549 Invalid, 2 Unknown, 0 Unchecked, 10.9s Time] [2021-12-06 23:52:26,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4206 states. [2021-12-06 23:52:26,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4206 to 3884. [2021-12-06 23:52:26,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3884 states, 2518 states have (on average 1.2486100079428117) internal successors, (3144), 2614 states have internal predecessors, (3144), 1122 states have call successors, (1122), 242 states have call predecessors, (1122), 242 states have return successors, (1122), 1092 states have call predecessors, (1122), 1122 states have call successors, (1122) [2021-12-06 23:52:26,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3884 states to 3884 states and 5388 transitions. [2021-12-06 23:52:26,366 INFO L78 Accepts]: Start accepts. Automaton has 3884 states and 5388 transitions. Word has length 155 [2021-12-06 23:52:26,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:52:26,366 INFO L470 AbstractCegarLoop]: Abstraction has 3884 states and 5388 transitions. [2021-12-06 23:52:26,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 23:52:26,366 INFO L276 IsEmpty]: Start isEmpty. Operand 3884 states and 5388 transitions. [2021-12-06 23:52:26,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-12-06 23:52:26,370 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:52:26,370 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:52:26,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-06 23:52:26,370 INFO L402 AbstractCegarLoop]: === Iteration 18 === 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)] === [2021-12-06 23:52:26,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:52:26,371 INFO L85 PathProgramCache]: Analyzing trace with hash 697961332, now seen corresponding path program 1 times [2021-12-06 23:52:26,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:52:26,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489762248] [2021-12-06 23:52:26,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:52:26,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:52:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:52:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:52:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:52:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 23:52:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:52:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:52:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 23:52:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:52:26,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 23:52:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 23:52:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:52:26,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:52:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:52:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 23:52:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 23:52:26,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:52:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:52:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:52:26,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 23:52:26,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-06 23:52:26,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 23:52:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-06 23:52:26,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-06 23:52:26,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-06 23:52:26,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-06 23:52:26,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-06 23:52:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:52:26,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-06 23:52:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-06 23:52:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:26,791 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2021-12-06 23:52:26,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:52:26,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489762248] [2021-12-06 23:52:26,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489762248] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:52:26,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:52:26,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:52:26,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345619435] [2021-12-06 23:52:26,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:52:26,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:52:26,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:52:26,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:52:26,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:52:26,793 INFO L87 Difference]: Start difference. First operand 3884 states and 5388 transitions. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-06 23:52:35,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:52:37,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:52:38,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:52:38,065 INFO L93 Difference]: Finished difference Result 4212 states and 5923 transitions. [2021-12-06 23:52:38,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 23:52:38,066 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 204 [2021-12-06 23:52:38,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:52:38,076 INFO L225 Difference]: With dead ends: 4212 [2021-12-06 23:52:38,076 INFO L226 Difference]: Without dead ends: 4210 [2021-12-06 23:52:38,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:52:38,078 INFO L933 BasicCegarLoop]: 4800 mSDtfsCounter, 5364 mSDsluCounter, 9468 mSDsCounter, 0 mSdLazyCounter, 4450 mSolverCounterSat, 2803 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5931 SdHoareTripleChecker+Valid, 14268 SdHoareTripleChecker+Invalid, 7255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2803 IncrementalHoareTripleChecker+Valid, 4450 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2021-12-06 23:52:38,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5931 Valid, 14268 Invalid, 7255 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2803 Valid, 4450 Invalid, 2 Unknown, 0 Unchecked, 10.8s Time] [2021-12-06 23:52:38,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4210 states. [2021-12-06 23:52:38,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4210 to 3888. [2021-12-06 23:52:38,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3888 states, 2521 states have (on average 1.2479174930583101) internal successors, (3146), 2617 states have internal predecessors, (3146), 1122 states have call successors, (1122), 243 states have call predecessors, (1122), 243 states have return successors, (1122), 1092 states have call predecessors, (1122), 1122 states have call successors, (1122) [2021-12-06 23:52:38,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3888 states to 3888 states and 5390 transitions. [2021-12-06 23:52:38,273 INFO L78 Accepts]: Start accepts. Automaton has 3888 states and 5390 transitions. Word has length 204 [2021-12-06 23:52:38,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:52:38,274 INFO L470 AbstractCegarLoop]: Abstraction has 3888 states and 5390 transitions. [2021-12-06 23:52:38,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-06 23:52:38,274 INFO L276 IsEmpty]: Start isEmpty. Operand 3888 states and 5390 transitions. [2021-12-06 23:52:38,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-12-06 23:52:38,279 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:52:38,279 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:52:38,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-06 23:52:38,279 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_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)] === [2021-12-06 23:52:38,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:52:38,280 INFO L85 PathProgramCache]: Analyzing trace with hash -697838737, now seen corresponding path program 1 times [2021-12-06 23:52:38,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:52:38,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343615793] [2021-12-06 23:52:38,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:52:38,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:52:38,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:52:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:52:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:52:38,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 23:52:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:52:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:52:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 23:52:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:52:38,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 23:52:38,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 23:52:38,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:52:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:52:38,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:52:38,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 23:52:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 23:52:38,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:52:38,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:52:38,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:52:38,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 23:52:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-06 23:52:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 23:52:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-06 23:52:38,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-06 23:52:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-06 23:52:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-06 23:52:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-06 23:52:38,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:52:38,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-06 23:52:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-06 23:52:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-06 23:52:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:52:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:52:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 23:52:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-06 23:52:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:52:38,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 23:52:38,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:52:38,696 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-12-06 23:52:38,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:52:38,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343615793] [2021-12-06 23:52:38,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343615793] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:52:38,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:52:38,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 23:52:38,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144982682] [2021-12-06 23:52:38,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:52:38,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 23:52:38,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:52:38,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 23:52:38,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:52:38,697 INFO L87 Difference]: Start difference. First operand 3888 states and 5390 transitions. Second operand has 10 states, 9 states have (on average 14.11111111111111) internal successors, (127), 6 states have internal predecessors, (127), 3 states have call successors, (39), 4 states have call predecessors, (39), 3 states have return successors, (33), 4 states have call predecessors, (33), 2 states have call successors, (33) [2021-12-06 23:52:46,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:53:00,700 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:53:02,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:53:05,099 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:53:06,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:53:06,152 INFO L93 Difference]: Finished difference Result 8452 states and 11968 transitions. [2021-12-06 23:53:06,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 23:53:06,153 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.11111111111111) internal successors, (127), 6 states have internal predecessors, (127), 3 states have call successors, (39), 4 states have call predecessors, (39), 3 states have return successors, (33), 4 states have call predecessors, (33), 2 states have call successors, (33) Word has length 242 [2021-12-06 23:53:06,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:53:06,165 INFO L225 Difference]: With dead ends: 8452 [2021-12-06 23:53:06,165 INFO L226 Difference]: Without dead ends: 4647 [2021-12-06 23:53:06,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2021-12-06 23:53:06,178 INFO L933 BasicCegarLoop]: 4553 mSDtfsCounter, 2841 mSDsluCounter, 23103 mSDsCounter, 0 mSdLazyCounter, 16656 mSolverCounterSat, 3578 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3062 SdHoareTripleChecker+Valid, 27656 SdHoareTripleChecker+Invalid, 20238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3578 IncrementalHoareTripleChecker+Valid, 16656 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.5s IncrementalHoareTripleChecker+Time [2021-12-06 23:53:06,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3062 Valid, 27656 Invalid, 20238 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3578 Valid, 16656 Invalid, 4 Unknown, 0 Unchecked, 26.5s Time] [2021-12-06 23:53:06,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4647 states. [2021-12-06 23:53:06,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4647 to 3894. [2021-12-06 23:53:06,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3894 states, 2525 states have (on average 1.2475247524752475) internal successors, (3150), 2619 states have internal predecessors, (3150), 1124 states have call successors, (1124), 243 states have call predecessors, (1124), 243 states have return successors, (1124), 1094 states have call predecessors, (1124), 1124 states have call successors, (1124) [2021-12-06 23:53:06,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3894 states to 3894 states and 5398 transitions. [2021-12-06 23:53:06,404 INFO L78 Accepts]: Start accepts. Automaton has 3894 states and 5398 transitions. Word has length 242 [2021-12-06 23:53:06,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:53:06,404 INFO L470 AbstractCegarLoop]: Abstraction has 3894 states and 5398 transitions. [2021-12-06 23:53:06,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.11111111111111) internal successors, (127), 6 states have internal predecessors, (127), 3 states have call successors, (39), 4 states have call predecessors, (39), 3 states have return successors, (33), 4 states have call predecessors, (33), 2 states have call successors, (33) [2021-12-06 23:53:06,404 INFO L276 IsEmpty]: Start isEmpty. Operand 3894 states and 5398 transitions. [2021-12-06 23:53:06,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-12-06 23:53:06,410 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:53:06,410 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:53:06,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-06 23:53:06,411 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_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)] === [2021-12-06 23:53:06,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:53:06,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1897986260, now seen corresponding path program 1 times [2021-12-06 23:53:06,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:53:06,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594871179] [2021-12-06 23:53:06,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:53:06,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:53:06,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:53:06,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:53:06,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 23:53:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:53:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 23:53:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:53:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 23:53:06,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 23:53:06,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:53:06,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:53:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 23:53:06,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 23:53:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:53:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:53:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 23:53:06,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-06 23:53:06,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 23:53:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-06 23:53:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-06 23:53:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-06 23:53:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-06 23:53:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-06 23:53:06,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:06,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-06 23:53:06,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-06 23:53:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-06 23:53:06,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:06,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:53:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 23:53:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-06 23:53:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:06,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 23:53:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:53:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:06,793 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-12-06 23:53:06,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:53:06,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594871179] [2021-12-06 23:53:06,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594871179] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:53:06,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:53:06,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 23:53:06,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581915869] [2021-12-06 23:53:06,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:53:06,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 23:53:06,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:53:06,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 23:53:06,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:53:06,794 INFO L87 Difference]: Start difference. First operand 3894 states and 5398 transitions. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (40), 5 states have call predecessors, (40), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-06 23:53:13,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:53:25,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:53:27,339 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:53:29,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:53:31,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:53:32,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:53:32,463 INFO L93 Difference]: Finished difference Result 4639 states and 6645 transitions. [2021-12-06 23:53:32,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 23:53:32,464 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (40), 5 states have call predecessors, (40), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 246 [2021-12-06 23:53:32,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:53:32,478 INFO L225 Difference]: With dead ends: 4639 [2021-12-06 23:53:32,478 INFO L226 Difference]: Without dead ends: 4637 [2021-12-06 23:53:32,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-12-06 23:53:32,480 INFO L933 BasicCegarLoop]: 4578 mSDtfsCounter, 2888 mSDsluCounter, 11800 mSDsCounter, 0 mSdLazyCounter, 11418 mSolverCounterSat, 3573 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3105 SdHoareTripleChecker+Valid, 16378 SdHoareTripleChecker+Invalid, 14996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3573 IncrementalHoareTripleChecker+Valid, 11418 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:53:32,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3105 Valid, 16378 Invalid, 14996 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3573 Valid, 11418 Invalid, 5 Unknown, 0 Unchecked, 25.0s Time] [2021-12-06 23:53:32,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4637 states. [2021-12-06 23:53:32,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4637 to 3894. [2021-12-06 23:53:32,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3894 states, 2525 states have (on average 1.2467326732673267) internal successors, (3148), 2619 states have internal predecessors, (3148), 1124 states have call successors, (1124), 243 states have call predecessors, (1124), 243 states have return successors, (1124), 1094 states have call predecessors, (1124), 1124 states have call successors, (1124) [2021-12-06 23:53:32,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3894 states to 3894 states and 5396 transitions. [2021-12-06 23:53:32,712 INFO L78 Accepts]: Start accepts. Automaton has 3894 states and 5396 transitions. Word has length 246 [2021-12-06 23:53:32,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:53:32,713 INFO L470 AbstractCegarLoop]: Abstraction has 3894 states and 5396 transitions. [2021-12-06 23:53:32,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (40), 5 states have call predecessors, (40), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-06 23:53:32,713 INFO L276 IsEmpty]: Start isEmpty. Operand 3894 states and 5396 transitions. [2021-12-06 23:53:32,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2021-12-06 23:53:32,722 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:53:32,723 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 13, 13, 13, 13, 12, 12, 12, 9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:53:32,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-06 23:53:32,723 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_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)] === [2021-12-06 23:53:32,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:53:32,723 INFO L85 PathProgramCache]: Analyzing trace with hash -675432636, now seen corresponding path program 1 times [2021-12-06 23:53:32,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:53:32,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067319707] [2021-12-06 23:53:32,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:53:32,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:53:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:32,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:53:32,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:32,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:32,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:32,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:53:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:32,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 23:53:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:32,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:53:32,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:32,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:32,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:32,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 23:53:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:32,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:53:32,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 23:53:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 23:53:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:53:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:53:33,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 23:53:33,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 23:53:33,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:53:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:53:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 23:53:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-06 23:53:33,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 23:53:33,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-06 23:53:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-06 23:53:33,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-06 23:53:33,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-06 23:53:33,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:53:33,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:53:33,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-06 23:53:33,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-06 23:53:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-06 23:53:33,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-06 23:53:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-06 23:53:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-06 23:53:33,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-06 23:53:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-06 23:53:33,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-06 23:53:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-06 23:53:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-06 23:53:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-06 23:53:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-06 23:53:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-06 23:53:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:53:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-06 23:53:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-12-06 23:53:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:53:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 23:53:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 23:53:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 23:53:33,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-12-06 23:53:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 23:53:33,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 23:53:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-06 23:53:33,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 23:53:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 23:53:33,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 23:53:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 23:53:33,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 23:53:33,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-06 23:53:33,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 23:53:33,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-06 23:53:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-06 23:53:33,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 23:53:33,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-06 23:53:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 23:53:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:33,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:33,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1257 trivial. 0 not checked. [2021-12-06 23:53:33,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:53:33,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067319707] [2021-12-06 23:53:33,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067319707] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 23:53:33,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613833632] [2021-12-06 23:53:33,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:53:33,501 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:53:33,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:53:33,502 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 23:53:33,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 23:53:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:34,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 8113 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 23:53:34,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:53:34,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 1055 trivial. 0 not checked. [2021-12-06 23:53:34,961 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:53:34,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613833632] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:53:34,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 23:53:34,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2021-12-06 23:53:34,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363415029] [2021-12-06 23:53:34,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:53:34,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:53:34,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:53:34,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:53:34,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-12-06 23:53:34,964 INFO L87 Difference]: Start difference. First operand 3894 states and 5396 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 2 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2021-12-06 23:53:35,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:53:35,210 INFO L93 Difference]: Finished difference Result 7706 states and 10725 transitions. [2021-12-06 23:53:35,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:53:35,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 2 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 568 [2021-12-06 23:53:35,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:53:35,223 INFO L225 Difference]: With dead ends: 7706 [2021-12-06 23:53:35,223 INFO L226 Difference]: Without dead ends: 3895 [2021-12-06 23:53:35,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 765 GetRequests, 756 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-12-06 23:53:35,238 INFO L933 BasicCegarLoop]: 5219 mSDtfsCounter, 0 mSDsluCounter, 5215 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10434 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:53:35,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10434 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:53:35,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3895 states. [2021-12-06 23:53:35,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3895 to 3895. [2021-12-06 23:53:35,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3895 states, 2526 states have (on average 1.2466349960411718) internal successors, (3149), 2620 states have internal predecessors, (3149), 1124 states have call successors, (1124), 243 states have call predecessors, (1124), 243 states have return successors, (1124), 1094 states have call predecessors, (1124), 1124 states have call successors, (1124) [2021-12-06 23:53:35,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3895 states to 3895 states and 5397 transitions. [2021-12-06 23:53:35,454 INFO L78 Accepts]: Start accepts. Automaton has 3895 states and 5397 transitions. Word has length 568 [2021-12-06 23:53:35,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:53:35,455 INFO L470 AbstractCegarLoop]: Abstraction has 3895 states and 5397 transitions. [2021-12-06 23:53:35,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 2 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2021-12-06 23:53:35,455 INFO L276 IsEmpty]: Start isEmpty. Operand 3895 states and 5397 transitions. [2021-12-06 23:53:35,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2021-12-06 23:53:35,465 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:53:35,465 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 13, 13, 13, 13, 12, 12, 12, 9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:53:35,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 23:53:35,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:53:35,667 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_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)] === [2021-12-06 23:53:35,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:53:35,667 INFO L85 PathProgramCache]: Analyzing trace with hash 723974699, now seen corresponding path program 1 times [2021-12-06 23:53:35,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:53:35,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360909132] [2021-12-06 23:53:35,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:53:35,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:53:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:35,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:53:35,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:35,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:35,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:53:35,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:35,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 23:53:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:35,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:53:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:35,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:35,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 23:53:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:35,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:53:35,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:35,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 23:53:35,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:35,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 23:53:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:35,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:35,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:53:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:35,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:53:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:35,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 23:53:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:35,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 23:53:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:35,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:35,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:53:35,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:35,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:53:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 23:53:36,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-06 23:53:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 23:53:36,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-06 23:53:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-06 23:53:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-06 23:53:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-06 23:53:36,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:53:36,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:53:36,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-06 23:53:36,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-06 23:53:36,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-06 23:53:36,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-06 23:53:36,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-06 23:53:36,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-06 23:53:36,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-06 23:53:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-06 23:53:36,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-06 23:53:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-06 23:53:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-06 23:53:36,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-06 23:53:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-06 23:53:36,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-06 23:53:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:53:36,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-06 23:53:36,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-06 23:53:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:53:36,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 23:53:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 23:53:36,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 23:53:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-12-06 23:53:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 23:53:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 23:53:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-06 23:53:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 23:53:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 23:53:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 23:53:36,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 23:53:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 23:53:36,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-06 23:53:36,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 23:53:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-06 23:53:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-06 23:53:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 23:53:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-06 23:53:36,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 23:53:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:36,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1257 trivial. 0 not checked. [2021-12-06 23:53:36,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:53:36,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360909132] [2021-12-06 23:53:36,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360909132] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 23:53:36,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082946500] [2021-12-06 23:53:36,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:53:36,479 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:53:36,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:53:36,479 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 23:53:36,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 23:53:37,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:37,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 8114 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 23:53:37,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:53:37,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 1061 trivial. 0 not checked. [2021-12-06 23:53:37,922 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:53:37,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082946500] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:53:37,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 23:53:37,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 10 [2021-12-06 23:53:37,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198035652] [2021-12-06 23:53:37,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:53:37,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:53:37,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:53:37,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:53:37,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:53:37,923 INFO L87 Difference]: Start difference. First operand 3895 states and 5397 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 2 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2021-12-06 23:53:38,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:53:38,158 INFO L93 Difference]: Finished difference Result 7731 states and 10797 transitions. [2021-12-06 23:53:38,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:53:38,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 2 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 566 [2021-12-06 23:53:38,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:53:38,169 INFO L225 Difference]: With dead ends: 7731 [2021-12-06 23:53:38,169 INFO L226 Difference]: Without dead ends: 3919 [2021-12-06 23:53:38,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 763 GetRequests, 755 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:53:38,183 INFO L933 BasicCegarLoop]: 5221 mSDtfsCounter, 9 mSDsluCounter, 5215 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 10436 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:53:38,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 10436 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:53:38,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3919 states. [2021-12-06 23:53:38,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3919 to 3897. [2021-12-06 23:53:38,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3897 states, 2528 states have (on average 1.2464398734177216) internal successors, (3151), 2622 states have internal predecessors, (3151), 1124 states have call successors, (1124), 243 states have call predecessors, (1124), 243 states have return successors, (1124), 1094 states have call predecessors, (1124), 1124 states have call successors, (1124) [2021-12-06 23:53:38,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3897 states to 3897 states and 5399 transitions. [2021-12-06 23:53:38,400 INFO L78 Accepts]: Start accepts. Automaton has 3897 states and 5399 transitions. Word has length 566 [2021-12-06 23:53:38,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:53:38,401 INFO L470 AbstractCegarLoop]: Abstraction has 3897 states and 5399 transitions. [2021-12-06 23:53:38,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 2 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2021-12-06 23:53:38,401 INFO L276 IsEmpty]: Start isEmpty. Operand 3897 states and 5399 transitions. [2021-12-06 23:53:38,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2021-12-06 23:53:38,410 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:53:38,410 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:53:38,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 23:53:38,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-12-06 23:53:38,612 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_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)] === [2021-12-06 23:53:38,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:53:38,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1325711803, now seen corresponding path program 1 times [2021-12-06 23:53:38,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:53:38,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156592631] [2021-12-06 23:53:38,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:53:38,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:53:38,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:38,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:53:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:38,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:38,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:38,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:53:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:38,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 23:53:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:38,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-06 23:53:38,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:38,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:38,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:53:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:38,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:53:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:38,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:53:38,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:38,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:38,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:38,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:53:38,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:38,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:53:38,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:38,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 23:53:38,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:38,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:38,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:53:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:38,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:53:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:38,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 23:53:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:38,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 23:53:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:38,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-06 23:53:38,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:38,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:38,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:38,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:38,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:38,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-06 23:53:38,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:38,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-06 23:53:38,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:38,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-06 23:53:38,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:38,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-06 23:53:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:38,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-06 23:53:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-06 23:53:39,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-06 23:53:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-06 23:53:39,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-06 23:53:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-06 23:53:39,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-06 23:53:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-06 23:53:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-06 23:53:39,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-06 23:53:39,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-06 23:53:39,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:39,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:53:39,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-06 23:53:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-06 23:53:39,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:39,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:53:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 23:53:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 23:53:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 23:53:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-12-06 23:53:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 23:53:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:39,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 23:53:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 23:53:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-06 23:53:39,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 23:53:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 23:53:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-06 23:53:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:39,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 23:53:39,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:39,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:39,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 23:53:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:39,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-06 23:53:39,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:39,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 23:53:39,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:39,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-06 23:53:39,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 23:53:39,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:39,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:39,379 INFO L134 CoverageAnalysis]: Checked inductivity of 781 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 772 trivial. 0 not checked. [2021-12-06 23:53:39,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:53:39,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156592631] [2021-12-06 23:53:39,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156592631] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 23:53:39,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908618216] [2021-12-06 23:53:39,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:53:39,380 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:53:39,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:53:39,381 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 23:53:39,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 23:53:40,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:40,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 7941 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 23:53:40,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:53:40,724 INFO L134 CoverageAnalysis]: Checked inductivity of 781 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2021-12-06 23:53:40,724 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:53:40,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908618216] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:53:40,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 23:53:40,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 8 [2021-12-06 23:53:40,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120341613] [2021-12-06 23:53:40,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:53:40,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:53:40,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:53:40,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:53:40,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-06 23:53:40,726 INFO L87 Difference]: Start difference. First operand 3897 states and 5399 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2021-12-06 23:53:40,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:53:40,950 INFO L93 Difference]: Finished difference Result 7721 states and 10896 transitions. [2021-12-06 23:53:40,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:53:40,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 491 [2021-12-06 23:53:40,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:53:40,961 INFO L225 Difference]: With dead ends: 7721 [2021-12-06 23:53:40,962 INFO L226 Difference]: Without dead ends: 3907 [2021-12-06 23:53:40,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 655 GetRequests, 649 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-06 23:53:40,972 INFO L933 BasicCegarLoop]: 5220 mSDtfsCounter, 8 mSDsluCounter, 5215 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 10435 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:53:40,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 10435 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:53:40,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3907 states. [2021-12-06 23:53:41,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3907 to 3898. [2021-12-06 23:53:41,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3898 states, 2529 states have (on average 1.2463424278370898) internal successors, (3152), 2623 states have internal predecessors, (3152), 1124 states have call successors, (1124), 243 states have call predecessors, (1124), 243 states have return successors, (1124), 1094 states have call predecessors, (1124), 1124 states have call successors, (1124) [2021-12-06 23:53:41,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3898 states to 3898 states and 5400 transitions. [2021-12-06 23:53:41,201 INFO L78 Accepts]: Start accepts. Automaton has 3898 states and 5400 transitions. Word has length 491 [2021-12-06 23:53:41,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:53:41,201 INFO L470 AbstractCegarLoop]: Abstraction has 3898 states and 5400 transitions. [2021-12-06 23:53:41,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2021-12-06 23:53:41,201 INFO L276 IsEmpty]: Start isEmpty. Operand 3898 states and 5400 transitions. [2021-12-06 23:53:41,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2021-12-06 23:53:41,209 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:53:41,209 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:53:41,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 23:53:41,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-12-06 23:53:41,411 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_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)] === [2021-12-06 23:53:41,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:53:41,412 INFO L85 PathProgramCache]: Analyzing trace with hash 432657116, now seen corresponding path program 1 times [2021-12-06 23:53:41,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:53:41,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418926317] [2021-12-06 23:53:41,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:53:41,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:53:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:53:41,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:53:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 23:53:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:53:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 23:53:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:53:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 23:53:41,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 23:53:41,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:53:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:53:41,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 23:53:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 23:53:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:41,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:53:41,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:53:41,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 23:53:41,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-06 23:53:41,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 23:53:41,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-06 23:53:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-06 23:53:41,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-06 23:53:41,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-06 23:53:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-06 23:53:41,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:41,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-06 23:53:41,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-06 23:53:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-06 23:53:41,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-06 23:53:41,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-06 23:53:41,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-06 23:53:41,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-06 23:53:41,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-12-06 23:53:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-06 23:53:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-06 23:53:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-06 23:53:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-06 23:53:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-06 23:53:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-12-06 23:53:41,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-12-06 23:53:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-06 23:53:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 23:53:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 23:53:41,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-06 23:53:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:53:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-06 23:53:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-06 23:53:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-12-06 23:53:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-12-06 23:53:41,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-12-06 23:53:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-12-06 23:53:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:41,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2021-12-06 23:53:41,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:53:41,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-12-06 23:53:41,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:41,889 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-12-06 23:53:41,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:53:41,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418926317] [2021-12-06 23:53:41,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418926317] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:53:41,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:53:41,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:53:41,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144856507] [2021-12-06 23:53:41,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:53:41,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:53:41,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:53:41,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:53:41,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:53:41,890 INFO L87 Difference]: Start difference. First operand 3898 states and 5400 transitions. Second operand has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 3 states have internal predecessors, (167), 3 states have call successors, (65), 5 states have call predecessors, (65), 2 states have return successors, (58), 2 states have call predecessors, (58), 3 states have call successors, (58) [2021-12-06 23:53:48,609 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:53:50,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:53:52,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:53:54,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:53:56,539 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:53:58,597 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:54:00,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:54:11,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:54:11,223 INFO L93 Difference]: Finished difference Result 9270 states and 13283 transitions. [2021-12-06 23:54:11,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 23:54:11,223 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 3 states have internal predecessors, (167), 3 states have call successors, (65), 5 states have call predecessors, (65), 2 states have return successors, (58), 2 states have call predecessors, (58), 3 states have call successors, (58) Word has length 386 [2021-12-06 23:54:11,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:54:11,240 INFO L225 Difference]: With dead ends: 9270 [2021-12-06 23:54:11,240 INFO L226 Difference]: Without dead ends: 5455 [2021-12-06 23:54:11,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-06 23:54:11,252 INFO L933 BasicCegarLoop]: 4486 mSDtfsCounter, 5525 mSDsluCounter, 7152 mSDsCounter, 0 mSdLazyCounter, 8333 mSolverCounterSat, 6372 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5952 SdHoareTripleChecker+Valid, 11638 SdHoareTripleChecker+Invalid, 14711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6372 IncrementalHoareTripleChecker+Valid, 8333 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.6s IncrementalHoareTripleChecker+Time [2021-12-06 23:54:11,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5952 Valid, 11638 Invalid, 14711 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6372 Valid, 8333 Invalid, 6 Unknown, 0 Unchecked, 28.6s Time] [2021-12-06 23:54:11,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5455 states. [2021-12-06 23:54:11,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5455 to 3899. [2021-12-06 23:54:11,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3899 states, 2530 states have (on average 1.2462450592885375) internal successors, (3153), 2624 states have internal predecessors, (3153), 1124 states have call successors, (1124), 243 states have call predecessors, (1124), 243 states have return successors, (1124), 1094 states have call predecessors, (1124), 1124 states have call successors, (1124) [2021-12-06 23:54:11,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3899 states to 3899 states and 5401 transitions. [2021-12-06 23:54:11,522 INFO L78 Accepts]: Start accepts. Automaton has 3899 states and 5401 transitions. Word has length 386 [2021-12-06 23:54:11,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:54:11,522 INFO L470 AbstractCegarLoop]: Abstraction has 3899 states and 5401 transitions. [2021-12-06 23:54:11,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 3 states have internal predecessors, (167), 3 states have call successors, (65), 5 states have call predecessors, (65), 2 states have return successors, (58), 2 states have call predecessors, (58), 3 states have call successors, (58) [2021-12-06 23:54:11,522 INFO L276 IsEmpty]: Start isEmpty. Operand 3899 states and 5401 transitions. [2021-12-06 23:54:11,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2021-12-06 23:54:11,530 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:54:11,530 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:54:11,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-06 23:54:11,531 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_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)] === [2021-12-06 23:54:11,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:54:11,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1199871241, now seen corresponding path program 1 times [2021-12-06 23:54:11,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:54:11,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060822533] [2021-12-06 23:54:11,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:54:11,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:54:11,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:54:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:54:11,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:54:11,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 23:54:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:54:11,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:54:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 23:54:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:54:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 23:54:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 23:54:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:54:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:54:11,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:54:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 23:54:11,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 23:54:11,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:54:11,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:54:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:54:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 23:54:11,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-06 23:54:11,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-06 23:54:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-06 23:54:11,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-06 23:54:11,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-06 23:54:11,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-06 23:54:11,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-06 23:54:11,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-06 23:54:11,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-06 23:54:11,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-06 23:54:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-06 23:54:11,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:54:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-06 23:54:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:54:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-06 23:54:11,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-06 23:54:11,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-06 23:54:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-06 23:54:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-06 23:54:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-06 23:54:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-12-06 23:54:11,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-06 23:54:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:54:11,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 23:54:11,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 23:54:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 23:54:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 23:54:11,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-12-06 23:54:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:54:11,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:54:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-06 23:54:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-06 23:54:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2021-12-06 23:54:11,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-12-06 23:54:11,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:54:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-12-06 23:54:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:11,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-12-06 23:54:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:12,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:54:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:12,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-12-06 23:54:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:12,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:54:12,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:12,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-12-06 23:54:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:12,025 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2021-12-06 23:54:12,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:54:12,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060822533] [2021-12-06 23:54:12,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060822533] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:54:12,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:54:12,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 23:54:12,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616873096] [2021-12-06 23:54:12,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:54:12,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 23:54:12,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:54:12,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 23:54:12,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:54:12,027 INFO L87 Difference]: Start difference. First operand 3899 states and 5401 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (62), 5 states have call predecessors, (62), 2 states have return successors, (56), 2 states have call predecessors, (56), 3 states have call successors, (56) [2021-12-06 23:54:18,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:54:20,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:54:23,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:54:33,539 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:54:35,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:54:37,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:54:38,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:54:38,792 INFO L93 Difference]: Finished difference Result 5075 states and 7281 transitions. [2021-12-06 23:54:38,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 23:54:38,792 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (62), 5 states have call predecessors, (62), 2 states have return successors, (56), 2 states have call predecessors, (56), 3 states have call successors, (56) Word has length 364 [2021-12-06 23:54:38,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:54:38,804 INFO L225 Difference]: With dead ends: 5075 [2021-12-06 23:54:38,805 INFO L226 Difference]: Without dead ends: 4857 [2021-12-06 23:54:38,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-12-06 23:54:38,808 INFO L933 BasicCegarLoop]: 4633 mSDtfsCounter, 4311 mSDsluCounter, 11326 mSDsCounter, 0 mSdLazyCounter, 10835 mSolverCounterSat, 4253 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4674 SdHoareTripleChecker+Valid, 15959 SdHoareTripleChecker+Invalid, 15094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4253 IncrementalHoareTripleChecker+Valid, 10835 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:54:38,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4674 Valid, 15959 Invalid, 15094 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4253 Valid, 10835 Invalid, 6 Unknown, 0 Unchecked, 26.0s Time] [2021-12-06 23:54:38,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4857 states. [2021-12-06 23:54:39,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4857 to 3697. [2021-12-06 23:54:39,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3697 states, 2389 states have (on average 1.2448723315194643) internal successors, (2974), 2476 states have internal predecessors, (2974), 1064 states have call successors, (1064), 242 states have call predecessors, (1064), 242 states have return successors, (1064), 1038 states have call predecessors, (1064), 1064 states have call successors, (1064) [2021-12-06 23:54:39,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3697 states to 3697 states and 5102 transitions. [2021-12-06 23:54:39,035 INFO L78 Accepts]: Start accepts. Automaton has 3697 states and 5102 transitions. Word has length 364 [2021-12-06 23:54:39,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:54:39,035 INFO L470 AbstractCegarLoop]: Abstraction has 3697 states and 5102 transitions. [2021-12-06 23:54:39,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (62), 5 states have call predecessors, (62), 2 states have return successors, (56), 2 states have call predecessors, (56), 3 states have call successors, (56) [2021-12-06 23:54:39,036 INFO L276 IsEmpty]: Start isEmpty. Operand 3697 states and 5102 transitions. [2021-12-06 23:54:39,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2021-12-06 23:54:39,047 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:54:39,048 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 13, 13, 13, 11, 11, 11, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:54:39,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-06 23:54:39,048 INFO L402 AbstractCegarLoop]: === Iteration 26 === 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)] === [2021-12-06 23:54:39,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:54:39,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1028223648, now seen corresponding path program 1 times [2021-12-06 23:54:39,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:54:39,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031620907] [2021-12-06 23:54:39,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:54:39,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:54:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:54:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:54:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:54:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 23:54:39,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-06 23:54:39,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:54:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:54:39,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:54:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:54:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:54:39,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:54:39,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:54:39,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 23:54:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:54:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:54:39,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:54:39,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 23:54:39,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 23:54:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 23:54:39,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-06 23:54:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-06 23:54:39,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-06 23:54:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:54:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-06 23:54:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-06 23:54:39,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:54:39,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 23:54:39,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:54:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-06 23:54:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-06 23:54:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-06 23:54:39,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-06 23:54:39,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:54:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:54:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-06 23:54:39,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:54:39,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 23:54:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 23:54:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:54:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 23:54:39,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 23:54:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:54:39,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 23:54:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:54:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-06 23:54:39,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-06 23:54:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 23:54:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 23:54:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-06 23:54:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 23:54:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 23:54:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-06 23:54:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-06 23:54:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-06 23:54:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 23:54:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 23:54:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-06 23:54:39,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-06 23:54:39,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-06 23:54:39,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-06 23:54:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-06 23:54:39,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-06 23:54:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-06 23:54:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-06 23:54:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-06 23:54:39,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-06 23:54:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-06 23:54:39,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:54:39,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 23:54:39,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2021-12-06 23:54:39,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-06 23:54:39,748 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig$NestedTraceCheckException: UNKNOWN during nested interpolation. I don't know how to continue at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:396) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:229) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck$TraceCheckLock@3b6785a2 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.lockAndPrepareSolverForTraceCheck(TraceCheck.java:493) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:294) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:211) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:379) ... 31 more [2021-12-06 23:54:39,751 INFO L158 Benchmark]: Toolchain (without parser) took 306293.02ms. Allocated memory was 96.5MB in the beginning and 981.5MB in the end (delta: 885.0MB). Free memory was 50.7MB in the beginning and 664.4MB in the end (delta: -613.7MB). Peak memory consumption was 271.1MB. Max. memory is 16.1GB. [2021-12-06 23:54:39,751 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 96.5MB. Free memory was 70.1MB in the beginning and 70.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 23:54:39,751 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5773.29ms. Allocated memory was 96.5MB in the beginning and 243.3MB in the end (delta: 146.8MB). Free memory was 50.4MB in the beginning and 90.2MB in the end (delta: -39.8MB). Peak memory consumption was 130.4MB. Max. memory is 16.1GB. [2021-12-06 23:54:39,752 INFO L158 Benchmark]: Boogie Procedure Inliner took 339.89ms. Allocated memory is still 243.3MB. Free memory was 90.2MB in the beginning and 97.6MB in the end (delta: -7.4MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB. [2021-12-06 23:54:39,752 INFO L158 Benchmark]: Boogie Preprocessor took 294.54ms. Allocated memory is still 243.3MB. Free memory was 97.6MB in the beginning and 80.5MB in the end (delta: 17.1MB). Peak memory consumption was 71.8MB. Max. memory is 16.1GB. [2021-12-06 23:54:39,752 INFO L158 Benchmark]: RCFGBuilder took 10816.38ms. Allocated memory was 243.3MB in the beginning and 817.9MB in the end (delta: 574.6MB). Free memory was 80.5MB in the beginning and 294.9MB in the end (delta: -214.4MB). Peak memory consumption was 362.7MB. Max. memory is 16.1GB. [2021-12-06 23:54:39,752 INFO L158 Benchmark]: TraceAbstraction took 289064.71ms. Allocated memory was 817.9MB in the beginning and 981.5MB in the end (delta: 163.6MB). Free memory was 293.9MB in the beginning and 664.4MB in the end (delta: -370.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 23:54:39,753 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 96.5MB. Free memory was 70.1MB in the beginning and 70.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5773.29ms. Allocated memory was 96.5MB in the beginning and 243.3MB in the end (delta: 146.8MB). Free memory was 50.4MB in the beginning and 90.2MB in the end (delta: -39.8MB). Peak memory consumption was 130.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 339.89ms. Allocated memory is still 243.3MB. Free memory was 90.2MB in the beginning and 97.6MB in the end (delta: -7.4MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 294.54ms. Allocated memory is still 243.3MB. Free memory was 97.6MB in the beginning and 80.5MB in the end (delta: 17.1MB). Peak memory consumption was 71.8MB. Max. memory is 16.1GB. * RCFGBuilder took 10816.38ms. Allocated memory was 243.3MB in the beginning and 817.9MB in the end (delta: 574.6MB). Free memory was 80.5MB in the beginning and 294.9MB in the end (delta: -214.4MB). Peak memory consumption was 362.7MB. Max. memory is 16.1GB. * TraceAbstraction took 289064.71ms. Allocated memory was 817.9MB in the beginning and 981.5MB in the end (delta: 163.6MB). Free memory was 293.9MB in the beginning and 664.4MB in the end (delta: -370.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NestedTraceCheckException: UNKNOWN during nested interpolation. I don't know how to continue de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NestedTraceCheckException: UNKNOWN during nested interpolation. I don't know how to continue: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:396) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-06 23:54:39,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa --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 91f73b42c8fe3db55fbb7a7497120df3b9b2fa6084f78fe538d2c182c8caed17 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 23:54:41,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 23:54:41,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 23:54:41,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 23:54:41,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 23:54:41,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 23:54:41,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 23:54:41,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 23:54:41,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 23:54:41,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 23:54:41,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 23:54:41,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 23:54:41,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 23:54:41,339 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 23:54:41,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 23:54:41,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 23:54:41,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 23:54:41,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 23:54:41,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 23:54:41,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 23:54:41,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 23:54:41,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 23:54:41,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 23:54:41,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 23:54:41,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 23:54:41,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 23:54:41,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 23:54:41,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 23:54:41,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 23:54:41,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 23:54:41,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 23:54:41,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 23:54:41,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 23:54:41,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 23:54:41,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 23:54:41,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 23:54:41,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 23:54:41,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 23:54:41,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 23:54:41,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 23:54:41,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 23:54:41,385 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-06 23:54:41,405 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 23:54:41,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 23:54:41,405 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 23:54:41,405 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 23:54:41,406 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 23:54:41,406 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 23:54:41,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 23:54:41,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 23:54:41,407 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 23:54:41,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 23:54:41,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 23:54:41,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 23:54:41,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 23:54:41,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 23:54:41,407 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 23:54:41,408 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 23:54:41,408 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 23:54:41,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 23:54:41,408 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 23:54:41,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 23:54:41,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 23:54:41,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 23:54:41,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 23:54:41,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:54:41,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 23:54:41,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 23:54:41,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 23:54:41,409 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 23:54:41,409 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 23:54:41,409 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 23:54:41,410 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 23:54:41,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 23:54:41,410 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 23:54:41,410 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 23:54:41,410 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91f73b42c8fe3db55fbb7a7497120df3b9b2fa6084f78fe538d2c182c8caed17 [2021-12-06 23:54:41,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 23:54:41,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 23:54:41,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 23:54:41,670 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 23:54:41,671 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 23:54:41,672 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2021-12-06 23:54:41,714 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/data/19f72a947/ef558af51a9e4d159be4fee423ff06a2/FLAG207b6310f [2021-12-06 23:54:42,450 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 23:54:42,450 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2021-12-06 23:54:42,512 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/data/19f72a947/ef558af51a9e4d159be4fee423ff06a2/FLAG207b6310f [2021-12-06 23:54:42,741 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/data/19f72a947/ef558af51a9e4d159be4fee423ff06a2 [2021-12-06 23:54:42,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 23:54:42,744 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 23:54:42,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 23:54:42,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 23:54:42,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 23:54:42,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:54:42" (1/1) ... [2021-12-06 23:54:42,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ff53318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:54:42, skipping insertion in model container [2021-12-06 23:54:42,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:54:42" (1/1) ... [2021-12-06 23:54:42,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 23:54:42,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 23:54:47,885 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_0ca09b21-976c-47b4-abd8-079bb4b3bed7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[583669,583682] [2021-12-06 23:54:47,888 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_0ca09b21-976c-47b4-abd8-079bb4b3bed7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[583838,583851] [2021-12-06 23:54:47,888 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_0ca09b21-976c-47b4-abd8-079bb4b3bed7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[584005,584018] [2021-12-06 23:54:47,889 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_0ca09b21-976c-47b4-abd8-079bb4b3bed7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[584173,584186] [2021-12-06 23:54:47,927 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:54:47,984 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-06 23:54:48,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 23:54:48,422 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_0ca09b21-976c-47b4-abd8-079bb4b3bed7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[583669,583682] [2021-12-06 23:54:48,423 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_0ca09b21-976c-47b4-abd8-079bb4b3bed7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[583838,583851] [2021-12-06 23:54:48,423 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_0ca09b21-976c-47b4-abd8-079bb4b3bed7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[584005,584018] [2021-12-06 23:54:48,423 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_0ca09b21-976c-47b4-abd8-079bb4b3bed7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[584173,584186] [2021-12-06 23:54:48,430 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:54:48,489 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 23:54:49,003 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_0ca09b21-976c-47b4-abd8-079bb4b3bed7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[583669,583682] [2021-12-06 23:54:49,004 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_0ca09b21-976c-47b4-abd8-079bb4b3bed7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[583838,583851] [2021-12-06 23:54:49,004 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_0ca09b21-976c-47b4-abd8-079bb4b3bed7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[584005,584018] [2021-12-06 23:54:49,004 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_0ca09b21-976c-47b4-abd8-079bb4b3bed7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[584173,584186] [2021-12-06 23:54:49,012 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:54:49,363 INFO L208 MainTranslator]: Completed translation [2021-12-06 23:54:49,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:54:49 WrapperNode [2021-12-06 23:54:49,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 23:54:49,364 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 23:54:49,365 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 23:54:49,365 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 23:54:49,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:54:49" (1/1) ... [2021-12-06 23:54:49,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:54:49" (1/1) ... [2021-12-06 23:54:49,720 INFO L137 Inliner]: procedures = 813, calls = 5626, calls flagged for inlining = 404, calls inlined = 343, statements flattened = 10853 [2021-12-06 23:54:49,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 23:54:49,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 23:54:49,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 23:54:49,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 23:54:49,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:54:49" (1/1) ... [2021-12-06 23:54:49,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:54:49" (1/1) ... [2021-12-06 23:54:49,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:54:49" (1/1) ... [2021-12-06 23:54:49,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:54:49" (1/1) ... [2021-12-06 23:54:49,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:54:49" (1/1) ... [2021-12-06 23:54:49,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:54:49" (1/1) ... [2021-12-06 23:54:49,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:54:49" (1/1) ... [2021-12-06 23:54:50,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 23:54:50,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 23:54:50,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 23:54:50,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 23:54:50,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:54:49" (1/1) ... [2021-12-06 23:54:50,038 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:54:50,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:54:50,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 23:54:50,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 23:54:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-06 23:54:50,090 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-06 23:54:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_remove [2021-12-06 23:54:50,091 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_remove [2021-12-06 23:54:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_led [2021-12-06 23:54:50,091 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_led [2021-12-06 23:54:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_alloc_rx_skbs [2021-12-06 23:54:50,091 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_alloc_rx_skbs [2021-12-06 23:54:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-06 23:54:50,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-06 23:54:50,092 INFO L130 BoogieDeclarations]: Found specification of procedure rx_set_rss [2021-12-06 23:54:50,092 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_set_rss [2021-12-06 23:54:50,092 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_power_aux [2021-12-06 23:54:50,092 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_power_aux [2021-12-06 23:54:50,092 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-06 23:54:50,092 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-06 23:54:50,092 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2021-12-06 23:54:50,092 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2021-12-06 23:54:50,093 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-06 23:54:50,093 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-06 23:54:50,093 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_add_filter [2021-12-06 23:54:50,093 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_add_filter [2021-12-06 23:54:50,093 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-06 23:54:50,093 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-06 23:54:50,093 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-12-06 23:54:50,094 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-12-06 23:54:50,094 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2021-12-06 23:54:50,094 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2021-12-06 23:54:50,094 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-06 23:54:50,094 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-06 23:54:50,094 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-06 23:54:50,094 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-06 23:54:50,095 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_init_netdev [2021-12-06 23:54:50,095 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_init_netdev [2021-12-06 23:54:50,095 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-06 23:54:50,095 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-06 23:54:50,095 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-06 23:54:50,095 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-06 23:54:50,095 INFO L130 BoogieDeclarations]: Found specification of procedure netif_schedule_queue [2021-12-06 23:54:50,096 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_schedule_queue [2021-12-06 23:54:50,096 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_regs_len [2021-12-06 23:54:50,096 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_regs_len [2021-12-06 23:54:50,096 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-06 23:54:50,096 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-06 23:54:50,096 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_update [2021-12-06 23:54:50,096 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_update [2021-12-06 23:54:50,097 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-06 23:54:50,097 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-06 23:54:50,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-06 23:54:50,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-06 23:54:50,097 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_ramset [2021-12-06 23:54:50,097 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_ramset [2021-12-06 23:54:50,097 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-06 23:54:50,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-06 23:54:50,098 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_update_features [2021-12-06 23:54:50,098 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_update_features [2021-12-06 23:54:50,098 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_netpoll [2021-12-06 23:54:50,098 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_netpoll [2021-12-06 23:54:50,098 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-12-06 23:54:50,098 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-12-06 23:54:50,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-06 23:54:50,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-06 23:54:50,099 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-12-06 23:54:50,099 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-12-06 23:54:50,099 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-12-06 23:54:50,099 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-12-06 23:54:50,099 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-06 23:54:50,099 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-06 23:54:50,099 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-06 23:54:50,100 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-06 23:54:50,100 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_lock [2021-12-06 23:54:50,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_lock [2021-12-06 23:54:50,100 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-12-06 23:54:50,100 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-12-06 23:54:50,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-06 23:54:50,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-06 23:54:50,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 23:54:50,101 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_add [2021-12-06 23:54:50,101 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_add [2021-12-06 23:54:50,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2021-12-06 23:54:50,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2021-12-06 23:54:50,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 23:54:50,101 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_map_skb [2021-12-06 23:54:50,102 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_map_skb [2021-12-06 23:54:50,102 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_resume [2021-12-06 23:54:50,102 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_resume [2021-12-06 23:54:50,102 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_ring_size [2021-12-06 23:54:50,102 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_ring_size [2021-12-06 23:54:50,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-06 23:54:50,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-06 23:54:50,102 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-06 23:54:50,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-06 23:54:50,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 23:54:50,103 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-06 23:54:50,103 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read32 [2021-12-06 23:54:50,103 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read32 [2021-12-06 23:54:50,103 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-12-06 23:54:50,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-12-06 23:54:50,104 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2021-12-06 23:54:50,104 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2021-12-06 23:54:50,104 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_clean [2021-12-06 23:54:50,104 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_clean [2021-12-06 23:54:50,104 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-12-06 23:54:50,104 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-12-06 23:54:50,104 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-06 23:54:50,104 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-06 23:54:50,105 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_down [2021-12-06 23:54:50,105 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_down [2021-12-06 23:54:50,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-06 23:54:50,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-06 23:54:50,105 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_reinit [2021-12-06 23:54:50,105 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_reinit [2021-12-06 23:54:50,105 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-06 23:54:50,106 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-06 23:54:50,106 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read16 [2021-12-06 23:54:50,106 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read16 [2021-12-06 23:54:50,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 23:54:50,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 23:54:50,106 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write16 [2021-12-06 23:54:50,106 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write16 [2021-12-06 23:54:50,106 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-06 23:54:50,107 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-06 23:54:50,107 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_free_buffers [2021-12-06 23:54:50,107 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_free_buffers [2021-12-06 23:54:50,107 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-06 23:54:50,107 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-06 23:54:50,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 23:54:50,107 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-12-06 23:54:50,107 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-12-06 23:54:50,107 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2021-12-06 23:54:50,108 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2021-12-06 23:54:50,108 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-06 23:54:50,108 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-06 23:54:50,108 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read32 [2021-12-06 23:54:50,108 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read32 [2021-12-06 23:54:50,108 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-06 23:54:50,108 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_multicast [2021-12-06 23:54:50,108 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_multicast [2021-12-06 23:54:50,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-06 23:54:50,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-06 23:54:50,109 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_prefetch_init [2021-12-06 23:54:50,109 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_prefetch_init [2021-12-06 23:54:50,109 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_reset [2021-12-06 23:54:50,109 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_reset [2021-12-06 23:54:50,109 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-06 23:54:50,109 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-06 23:54:50,109 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-12-06 23:54:50,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-12-06 23:54:50,110 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-12-06 23:54:50,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-12-06 23:54:50,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2021-12-06 23:54:50,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2021-12-06 23:54:50,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 23:54:50,110 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 23:54:50,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-12-06 23:54:50,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-12-06 23:54:50,111 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-06 23:54:50,111 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-06 23:54:50,111 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vpd_wait [2021-12-06 23:54:50,111 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vpd_wait [2021-12-06 23:54:50,111 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-12-06 23:54:50,111 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-12-06 23:54:50,111 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_shutdown [2021-12-06 23:54:50,112 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_shutdown [2021-12-06 23:54:50,112 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read16 [2021-12-06 23:54:50,112 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read16 [2021-12-06 23:54:50,112 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_le [2021-12-06 23:54:50,112 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_le [2021-12-06 23:54:50,112 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_stop [2021-12-06 23:54:50,112 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_stop [2021-12-06 23:54:50,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 23:54:50,113 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-06 23:54:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-06 23:54:50,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 23:54:50,113 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_down [2021-12-06 23:54:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_down [2021-12-06 23:54:50,113 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-12-06 23:54:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-12-06 23:54:50,113 INFO L130 BoogieDeclarations]: Found specification of procedure __gm_phy_read [2021-12-06 23:54:50,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __gm_phy_read [2021-12-06 23:54:50,114 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-06 23:54:50,114 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-06 23:54:50,114 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2021-12-06 23:54:50,114 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2021-12-06 23:54:50,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-06 23:54:50,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-06 23:54:50,114 INFO L130 BoogieDeclarations]: Found specification of procedure gma_write16 [2021-12-06 23:54:50,115 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_write16 [2021-12-06 23:54:50,115 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-06 23:54:50,115 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-06 23:54:50,115 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_next_rx [2021-12-06 23:54:50,115 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_next_rx [2021-12-06 23:54:50,115 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-06 23:54:50,115 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-06 23:54:50,115 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2021-12-06 23:54:50,116 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2021-12-06 23:54:50,116 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_eeprom_len [2021-12-06 23:54:50,116 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_eeprom_len [2021-12-06 23:54:50,116 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-12-06 23:54:50,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-12-06 23:54:50,116 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-06 23:54:50,116 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-06 23:54:50,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_79 [2021-12-06 23:54:50,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_79 [2021-12-06 23:54:50,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-12-06 23:54:50,117 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_us2clk [2021-12-06 23:54:50,117 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_us2clk [2021-12-06 23:54:50,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-12-06 23:54:50,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-12-06 23:54:50,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-12-06 23:54:50,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 23:54:50,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 23:54:50,118 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2021-12-06 23:54:50,118 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2021-12-06 23:54:50,118 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-12-06 23:54:50,118 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-12-06 23:54:50,118 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2021-12-06 23:54:50,118 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2021-12-06 23:54:50,118 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-12-06 23:54:50,118 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-12-06 23:54:50,118 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_qset [2021-12-06 23:54:50,119 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_qset [2021-12-06 23:54:50,119 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_mhz [2021-12-06 23:54:50,119 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_mhz [2021-12-06 23:54:50,119 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-06 23:54:50,119 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-06 23:54:50,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-06 23:54:50,119 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-06 23:54:50,119 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-12-06 23:54:50,120 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-12-06 23:54:50,120 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats32 [2021-12-06 23:54:50,120 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats32 [2021-12-06 23:54:50,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 23:54:50,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 23:54:50,120 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-06 23:54:50,120 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-06 23:54:50,120 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_supported_modes [2021-12-06 23:54:50,121 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_supported_modes [2021-12-06 23:54:50,121 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_read [2021-12-06 23:54:50,121 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_read [2021-12-06 23:54:50,121 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_alloc [2021-12-06 23:54:50,121 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_alloc [2021-12-06 23:54:50,121 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-12-06 23:54:50,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-12-06 23:54:50,121 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2021-12-06 23:54:50,122 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2021-12-06 23:54:50,122 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_unlock [2021-12-06 23:54:50,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_unlock [2021-12-06 23:54:50,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-06 23:54:50,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-06 23:54:50,122 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_show_addr [2021-12-06 23:54:50,122 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_show_addr [2021-12-06 23:54:50,122 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-06 23:54:50,123 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-06 23:54:50,123 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_close [2021-12-06 23:54:50,123 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_close [2021-12-06 23:54:50,123 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-06 23:54:50,123 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-06 23:54:50,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-06 23:54:50,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-06 23:54:50,123 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_start [2021-12-06 23:54:50,123 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_start [2021-12-06 23:54:50,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 23:54:50,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-12-06 23:54:50,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-06 23:54:50,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-06 23:54:50,124 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-12-06 23:54:50,124 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-12-06 23:54:50,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-12-06 23:54:50,124 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats64 [2021-12-06 23:54:50,124 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats64 [2021-12-06 23:54:50,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-12-06 23:54:50,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-12-06 23:54:50,125 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-12-06 23:54:50,125 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-12-06 23:54:50,125 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-06 23:54:50,125 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-06 23:54:50,125 INFO L130 BoogieDeclarations]: Found specification of procedure pci_is_pcie [2021-12-06 23:54:50,125 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_is_pcie [2021-12-06 23:54:50,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-12-06 23:54:50,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-12-06 23:54:50,126 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-06 23:54:50,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-06 23:54:50,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_80 [2021-12-06 23:54:50,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_80 [2021-12-06 23:54:50,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 23:54:50,126 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 23:54:50,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-06 23:54:50,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-06 23:54:50,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-06 23:54:50,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-06 23:54:50,127 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_up [2021-12-06 23:54:50,127 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_up [2021-12-06 23:54:50,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_1 [2021-12-06 23:54:50,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_1 [2021-12-06 23:54:50,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_2 [2021-12-06 23:54:50,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_2 [2021-12-06 23:54:50,128 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-12-06 23:54:50,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-12-06 23:54:50,128 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_unmap [2021-12-06 23:54:50,128 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_unmap [2021-12-06 23:54:50,128 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_put_idx [2021-12-06 23:54:50,128 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_put_idx [2021-12-06 23:54:50,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-12-06 23:54:50,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-12-06 23:54:50,129 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 23:54:50,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 23:54:50,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-12-06 23:54:50,129 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_dma_map [2021-12-06 23:54:50,129 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_dma_map [2021-12-06 23:54:50,129 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2021-12-06 23:54:50,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2021-12-06 23:54:50,129 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_power_up [2021-12-06 23:54:50,130 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_power_up [2021-12-06 23:54:50,130 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_init [2021-12-06 23:54:50,130 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_init [2021-12-06 23:54:50,130 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-06 23:54:50,130 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-06 23:54:50,130 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_complete [2021-12-06 23:54:50,130 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_complete [2021-12-06 23:54:50,130 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2021-12-06 23:54:50,130 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2021-12-06 23:54:50,131 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-12-06 23:54:50,131 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-12-06 23:54:50,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-12-06 23:54:50,131 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read16 [2021-12-06 23:54:50,131 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read16 [2021-12-06 23:54:50,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-06 23:54:50,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-06 23:54:50,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-06 23:54:50,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 23:54:50,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-12-06 23:54:50,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 23:54:50,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 23:54:50,132 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_up [2021-12-06 23:54:50,132 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_up [2021-12-06 23:54:50,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-06 23:54:50,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-06 23:54:50,132 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_timeout [2021-12-06 23:54:50,133 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_timeout [2021-12-06 23:54:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-06 23:54:50,133 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-06 23:54:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_wol_supported [2021-12-06 23:54:50,133 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_wol_supported [2021-12-06 23:54:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write32 [2021-12-06 23:54:50,133 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write32 [2021-12-06 23:54:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-12-06 23:54:50,133 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-12-06 23:54:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_submit [2021-12-06 23:54:50,134 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_submit [2021-12-06 23:54:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-12-06 23:54:50,134 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-12-06 23:54:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-06 23:54:50,134 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-06 23:54:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vlan_mode [2021-12-06 23:54:50,134 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vlan_mode [2021-12-06 23:54:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read8 [2021-12-06 23:54:50,135 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read8 [2021-12-06 23:54:50,135 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2021-12-06 23:54:50,135 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2021-12-06 23:54:50,135 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read32 [2021-12-06 23:54:50,135 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read32 [2021-12-06 23:54:50,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_phy_lock_of_sky2_port [2021-12-06 23:54:50,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_phy_lock_of_sky2_port [2021-12-06 23:54:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure gma_set_addr [2021-12-06 23:54:50,136 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_set_addr [2021-12-06 23:54:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-12-06 23:54:50,136 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-12-06 23:54:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-12-06 23:54:50,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-12-06 23:54:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-06 23:54:50,137 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-06 23:54:50,137 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-06 23:54:50,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-06 23:54:50,137 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-06 23:54:50,137 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-06 23:54:50,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-06 23:54:50,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-06 23:54:50,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-12-06 23:54:50,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-06 23:54:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 23:54:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_nway_reset [2021-12-06 23:54:50,138 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_nway_reset [2021-12-06 23:54:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-12-06 23:54:50,138 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-12-06 23:54:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-12-06 23:54:50,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-12-06 23:54:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-06 23:54:50,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-06 23:54:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-12-06 23:54:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-12-06 23:54:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-06 23:54:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-06 23:54:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure tx_avail [2021-12-06 23:54:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_avail [2021-12-06 23:54:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_unmap_skb [2021-12-06 23:54:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_unmap_skb [2021-12-06 23:54:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-06 23:54:50,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-06 23:54:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_clk2us [2021-12-06 23:54:50,140 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_clk2us [2021-12-06 23:54:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_tx_stfwd [2021-12-06 23:54:50,140 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_tx_stfwd [2021-12-06 23:54:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_enable_rx_tx [2021-12-06 23:54:50,140 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_enable_rx_tx [2021-12-06 23:54:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-06 23:54:50,140 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-06 23:54:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-12-06 23:54:50,141 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-12-06 23:54:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-12-06 23:54:50,141 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-12-06 23:54:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_setup_irq [2021-12-06 23:54:50,141 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_setup_irq [2021-12-06 23:54:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 23:54:50,141 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 23:54:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-12-06 23:54:50,142 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-12-06 23:54:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_is_copper [2021-12-06 23:54:50,142 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_is_copper [2021-12-06 23:54:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-06 23:54:50,142 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-06 23:54:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_suspend [2021-12-06 23:54:50,142 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_suspend [2021-12-06 23:54:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-12-06 23:54:50,142 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-12-06 23:54:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write16 [2021-12-06 23:54:50,143 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write16 [2021-12-06 23:54:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-06 23:54:50,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-06 23:54:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-06 23:54:50,143 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-06 23:54:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write8 [2021-12-06 23:54:50,143 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write8 [2021-12-06 23:54:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_write [2021-12-06 23:54:50,144 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_write [2021-12-06 23:54:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-12-06 23:54:50,144 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-12-06 23:54:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-06 23:54:50,144 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-06 23:54:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write32 [2021-12-06 23:54:50,144 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write32 [2021-12-06 23:54:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read64 [2021-12-06 23:54:50,144 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read64 [2021-12-06 23:54:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-06 23:54:50,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-06 23:54:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-06 23:54:50,145 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-06 23:54:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_open [2021-12-06 23:54:50,145 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_open [2021-12-06 23:54:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-06 23:54:50,919 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 23:54:50,922 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 23:54:51,043 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 23:55:37,707 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 23:55:37,728 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 23:55:37,729 INFO L301 CfgBuilder]: Removed 11 assume(true) statements. [2021-12-06 23:55:37,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:55:37 BoogieIcfgContainer [2021-12-06 23:55:37,733 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 23:55:37,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 23:55:37,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 23:55:37,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 23:55:37,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 11:54:42" (1/3) ... [2021-12-06 23:55:37,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76fca102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:55:37, skipping insertion in model container [2021-12-06 23:55:37,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:54:49" (2/3) ... [2021-12-06 23:55:37,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76fca102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:55:37, skipping insertion in model container [2021-12-06 23:55:37,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:55:37" (3/3) ... [2021-12-06 23:55:37,738 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2021-12-06 23:55:37,742 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 23:55:37,742 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-06 23:55:37,787 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 23:55:37,791 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 23:55:37,791 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-06 23:55:37,861 INFO L276 IsEmpty]: Start isEmpty. Operand has 3880 states, 2516 states have (on average 1.273449920508744) internal successors, (3204), 2622 states have internal predecessors, (3204), 1154 states have call successors, (1154), 208 states have call predecessors, (1154), 207 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2021-12-06 23:55:37,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-12-06 23:55:37,867 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:55:37,868 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:55:37,868 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)] === [2021-12-06 23:55:37,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:55:37,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1734111632, now seen corresponding path program 1 times [2021-12-06 23:55:37,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:55:37,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1661580872] [2021-12-06 23:55:37,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:55:37,889 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:55:37,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:55:37,890 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:55:37,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 23:55:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:55:43,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 3973 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:55:43,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:55:44,938 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-06 23:55:44,938 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:55:44,938 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:55:44,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1661580872] [2021-12-06 23:55:44,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1661580872] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:55:44,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:55:44,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:55:44,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344080104] [2021-12-06 23:55:44,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:55:44,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:55:44,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:55:44,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:55:44,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:55:44,975 INFO L87 Difference]: Start difference. First operand has 3880 states, 2516 states have (on average 1.273449920508744) internal successors, (3204), 2622 states have internal predecessors, (3204), 1154 states have call successors, (1154), 208 states have call predecessors, (1154), 207 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-12-06 23:55:45,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:55:45,662 INFO L93 Difference]: Finished difference Result 7661 states and 11000 transitions. [2021-12-06 23:55:45,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:55:45,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 62 [2021-12-06 23:55:45,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:55:45,705 INFO L225 Difference]: With dead ends: 7661 [2021-12-06 23:55:45,705 INFO L226 Difference]: Without dead ends: 3852 [2021-12-06 23:55:45,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:55:45,732 INFO L933 BasicCegarLoop]: 5417 mSDtfsCounter, 5335 mSDsluCounter, 10872 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5336 SdHoareTripleChecker+Valid, 16289 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:55:45,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5336 Valid, 16289 Invalid, 25 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:55:45,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3852 states. [2021-12-06 23:55:45,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3852 to 3850. [2021-12-06 23:55:45,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3850 states, 2484 states have (on average 1.2536231884057971) internal successors, (3114), 2587 states have internal predecessors, (3114), 1149 states have call successors, (1149), 215 states have call predecessors, (1149), 214 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2021-12-06 23:55:45,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3850 states to 3850 states and 5409 transitions. [2021-12-06 23:55:45,981 INFO L78 Accepts]: Start accepts. Automaton has 3850 states and 5409 transitions. Word has length 62 [2021-12-06 23:55:45,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:55:45,982 INFO L470 AbstractCegarLoop]: Abstraction has 3850 states and 5409 transitions. [2021-12-06 23:55:45,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-12-06 23:55:45,982 INFO L276 IsEmpty]: Start isEmpty. Operand 3850 states and 5409 transitions. [2021-12-06 23:55:45,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-06 23:55:45,985 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:55:45,986 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:55:46,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 23:55:46,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:55:46,187 INFO L402 AbstractCegarLoop]: === Iteration 2 === 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)] === [2021-12-06 23:55:46,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:55:46,188 INFO L85 PathProgramCache]: Analyzing trace with hash -2059272523, now seen corresponding path program 1 times [2021-12-06 23:55:46,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:55:46,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [698645430] [2021-12-06 23:55:46,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:55:46,193 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:55:46,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:55:46,194 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:55:46,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-06 23:55:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:55:52,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 3980 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:55:52,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:55:53,220 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-06 23:55:53,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:55:53,857 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-06 23:55:53,857 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:55:53,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [698645430] [2021-12-06 23:55:53,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [698645430] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 23:55:53,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 23:55:53,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-12-06 23:55:53,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543623640] [2021-12-06 23:55:53,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:55:53,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:55:53,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:55:53,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:55:53,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:55:53,860 INFO L87 Difference]: Start difference. First operand 3850 states and 5409 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-06 23:55:54,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:55:54,599 INFO L93 Difference]: Finished difference Result 3856 states and 5414 transitions. [2021-12-06 23:55:54,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:55:54,600 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 67 [2021-12-06 23:55:54,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:55:54,621 INFO L225 Difference]: With dead ends: 3856 [2021-12-06 23:55:54,621 INFO L226 Difference]: Without dead ends: 3854 [2021-12-06 23:55:54,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:55:54,625 INFO L933 BasicCegarLoop]: 5374 mSDtfsCounter, 5338 mSDsluCounter, 10726 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5351 SdHoareTripleChecker+Valid, 16100 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:55:54,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5351 Valid, 16100 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:55:54,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3854 states. [2021-12-06 23:55:54,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3854 to 3854. [2021-12-06 23:55:54,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3854 states, 2487 states have (on average 1.253317249698432) internal successors, (3117), 2590 states have internal predecessors, (3117), 1149 states have call successors, (1149), 216 states have call predecessors, (1149), 215 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2021-12-06 23:55:54,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3854 states to 3854 states and 5412 transitions. [2021-12-06 23:55:54,791 INFO L78 Accepts]: Start accepts. Automaton has 3854 states and 5412 transitions. Word has length 67 [2021-12-06 23:55:54,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:55:54,791 INFO L470 AbstractCegarLoop]: Abstraction has 3854 states and 5412 transitions. [2021-12-06 23:55:54,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-06 23:55:54,791 INFO L276 IsEmpty]: Start isEmpty. Operand 3854 states and 5412 transitions. [2021-12-06 23:55:54,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-06 23:55:54,794 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:55:54,794 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:55:54,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-06 23:55:54,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:55:54,995 INFO L402 AbstractCegarLoop]: === Iteration 3 === 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)] === [2021-12-06 23:55:54,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:55:54,995 INFO L85 PathProgramCache]: Analyzing trace with hash 688715888, now seen corresponding path program 1 times [2021-12-06 23:55:54,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:55:54,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2074563566] [2021-12-06 23:55:54,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:55:54,999 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:55:54,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:55:55,000 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:55:55,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-06 23:56:00,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:56:00,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 3987 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:56:00,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:56:01,955 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-06 23:56:01,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:56:02,626 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-06 23:56:02,627 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:56:02,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2074563566] [2021-12-06 23:56:02,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2074563566] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 23:56:02,627 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 23:56:02,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-12-06 23:56:02,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809298271] [2021-12-06 23:56:02,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:56:02,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:56:02,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:56:02,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:56:02,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:56:02,628 INFO L87 Difference]: Start difference. First operand 3854 states and 5412 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-06 23:56:03,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:56:03,220 INFO L93 Difference]: Finished difference Result 3860 states and 5417 transitions. [2021-12-06 23:56:03,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:56:03,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 72 [2021-12-06 23:56:03,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:56:03,245 INFO L225 Difference]: With dead ends: 3860 [2021-12-06 23:56:03,245 INFO L226 Difference]: Without dead ends: 3858 [2021-12-06 23:56:03,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:56:03,249 INFO L933 BasicCegarLoop]: 5374 mSDtfsCounter, 5338 mSDsluCounter, 10726 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5350 SdHoareTripleChecker+Valid, 16100 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:56:03,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5350 Valid, 16100 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:56:03,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3858 states. [2021-12-06 23:56:03,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3858 to 3858. [2021-12-06 23:56:03,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3858 states, 2490 states have (on average 1.2530120481927711) internal successors, (3120), 2593 states have internal predecessors, (3120), 1149 states have call successors, (1149), 217 states have call predecessors, (1149), 216 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2021-12-06 23:56:03,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3858 states to 3858 states and 5415 transitions. [2021-12-06 23:56:03,442 INFO L78 Accepts]: Start accepts. Automaton has 3858 states and 5415 transitions. Word has length 72 [2021-12-06 23:56:03,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:56:03,442 INFO L470 AbstractCegarLoop]: Abstraction has 3858 states and 5415 transitions. [2021-12-06 23:56:03,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-06 23:56:03,442 INFO L276 IsEmpty]: Start isEmpty. Operand 3858 states and 5415 transitions. [2021-12-06 23:56:03,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-06 23:56:03,445 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:56:03,445 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:56:03,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-06 23:56:03,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:56:03,647 INFO L402 AbstractCegarLoop]: === Iteration 4 === 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)] === [2021-12-06 23:56:03,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:56:03,648 INFO L85 PathProgramCache]: Analyzing trace with hash 2037183317, now seen corresponding path program 1 times [2021-12-06 23:56:03,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:56:03,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [437736872] [2021-12-06 23:56:03,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:56:03,659 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:56:03,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:56:03,661 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:56:03,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-06 23:56:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:56:09,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 3994 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:56:09,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:56:10,809 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-06 23:56:10,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:56:11,472 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-06 23:56:11,472 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:56:11,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [437736872] [2021-12-06 23:56:11,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [437736872] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 23:56:11,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 23:56:11,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-12-06 23:56:11,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19524552] [2021-12-06 23:56:11,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:56:11,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:56:11,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:56:11,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:56:11,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:56:11,474 INFO L87 Difference]: Start difference. First operand 3858 states and 5415 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 23:56:12,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:56:12,045 INFO L93 Difference]: Finished difference Result 3864 states and 5420 transitions. [2021-12-06 23:56:12,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:56:12,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 77 [2021-12-06 23:56:12,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:56:12,067 INFO L225 Difference]: With dead ends: 3864 [2021-12-06 23:56:12,067 INFO L226 Difference]: Without dead ends: 3862 [2021-12-06 23:56:12,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:56:12,070 INFO L933 BasicCegarLoop]: 5374 mSDtfsCounter, 5338 mSDsluCounter, 10726 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5349 SdHoareTripleChecker+Valid, 16100 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:56:12,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5349 Valid, 16100 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:56:12,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3862 states. [2021-12-06 23:56:12,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3862 to 3862. [2021-12-06 23:56:12,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3862 states, 2493 states have (on average 1.2527075812274369) internal successors, (3123), 2596 states have internal predecessors, (3123), 1149 states have call successors, (1149), 218 states have call predecessors, (1149), 217 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2021-12-06 23:56:12,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 5418 transitions. [2021-12-06 23:56:12,246 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 5418 transitions. Word has length 77 [2021-12-06 23:56:12,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:56:12,246 INFO L470 AbstractCegarLoop]: Abstraction has 3862 states and 5418 transitions. [2021-12-06 23:56:12,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 23:56:12,247 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 5418 transitions. [2021-12-06 23:56:12,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-06 23:56:12,248 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:56:12,248 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:56:12,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-12-06 23:56:12,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:56:12,449 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 23:56:12,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:56:12,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1361307824, now seen corresponding path program 1 times [2021-12-06 23:56:12,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:56:12,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [154349819] [2021-12-06 23:56:12,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:56:12,466 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:56:12,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:56:12,467 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:56:12,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-06 23:56:17,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:56:18,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 4001 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:56:18,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:56:19,468 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-06 23:56:19,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:56:20,163 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-06 23:56:20,163 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:56:20,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [154349819] [2021-12-06 23:56:20,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [154349819] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 23:56:20,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 23:56:20,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-12-06 23:56:20,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799511949] [2021-12-06 23:56:20,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:56:20,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:56:20,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:56:20,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:56:20,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:56:20,165 INFO L87 Difference]: Start difference. First operand 3862 states and 5418 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 23:56:20,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:56:20,751 INFO L93 Difference]: Finished difference Result 3868 states and 5423 transitions. [2021-12-06 23:56:20,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:56:20,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 82 [2021-12-06 23:56:20,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:56:20,776 INFO L225 Difference]: With dead ends: 3868 [2021-12-06 23:56:20,776 INFO L226 Difference]: Without dead ends: 3866 [2021-12-06 23:56:20,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:56:20,779 INFO L933 BasicCegarLoop]: 5374 mSDtfsCounter, 5338 mSDsluCounter, 10726 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5348 SdHoareTripleChecker+Valid, 16100 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:56:20,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5348 Valid, 16100 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:56:20,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3866 states. [2021-12-06 23:56:20,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3866 to 3866. [2021-12-06 23:56:20,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3866 states, 2496 states have (on average 1.2524038461538463) internal successors, (3126), 2599 states have internal predecessors, (3126), 1149 states have call successors, (1149), 219 states have call predecessors, (1149), 218 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2021-12-06 23:56:20,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3866 states to 3866 states and 5421 transitions. [2021-12-06 23:56:20,975 INFO L78 Accepts]: Start accepts. Automaton has 3866 states and 5421 transitions. Word has length 82 [2021-12-06 23:56:20,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:56:20,975 INFO L470 AbstractCegarLoop]: Abstraction has 3866 states and 5421 transitions. [2021-12-06 23:56:20,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 23:56:20,976 INFO L276 IsEmpty]: Start isEmpty. Operand 3866 states and 5421 transitions. [2021-12-06 23:56:20,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-12-06 23:56:20,978 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:56:20,978 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:56:21,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-12-06 23:56:21,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:56:21,180 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 23:56:21,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:56:21,182 INFO L85 PathProgramCache]: Analyzing trace with hash -744546637, now seen corresponding path program 1 times [2021-12-06 23:56:21,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:56:21,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85270576] [2021-12-06 23:56:21,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:56:21,196 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:56:21,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:56:21,198 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:56:21,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-06 23:56:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:56:27,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 4050 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-06 23:56:27,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:56:29,761 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-12-06 23:56:29,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:56:31,887 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-12-06 23:56:31,888 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:56:31,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [85270576] [2021-12-06 23:56:31,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [85270576] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 23:56:31,888 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 23:56:31,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 18 [2021-12-06 23:56:31,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115818118] [2021-12-06 23:56:31,888 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 23:56:31,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-06 23:56:31,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:56:31,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-06 23:56:31,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-12-06 23:56:31,889 INFO L87 Difference]: Start difference. First operand 3866 states and 5421 transitions. Second operand has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 16 states have internal predecessors, (60), 6 states have call successors, (23), 2 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 6 states have call successors, (22) [2021-12-06 23:56:39,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:56:39,959 INFO L93 Difference]: Finished difference Result 6361 states and 8838 transitions. [2021-12-06 23:56:39,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-06 23:56:39,960 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 16 states have internal predecessors, (60), 6 states have call successors, (23), 2 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 6 states have call successors, (22) Word has length 102 [2021-12-06 23:56:39,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:56:39,982 INFO L225 Difference]: With dead ends: 6361 [2021-12-06 23:56:39,982 INFO L226 Difference]: Without dead ends: 3880 [2021-12-06 23:56:39,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2021-12-06 23:56:39,993 INFO L933 BasicCegarLoop]: 5325 mSDtfsCounter, 46 mSDsluCounter, 69177 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 74502 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-12-06 23:56:39,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 74502 Invalid, 805 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [40 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2021-12-06 23:56:40,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3880 states. [2021-12-06 23:56:40,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3880 to 3876. [2021-12-06 23:56:40,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3876 states, 2504 states have (on average 1.2515974440894568) internal successors, (3134), 2607 states have internal predecessors, (3134), 1151 states have call successors, (1151), 219 states have call predecessors, (1151), 218 states have return successors, (1148), 1116 states have call predecessors, (1148), 1148 states have call successors, (1148) [2021-12-06 23:56:40,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3876 states to 3876 states and 5433 transitions. [2021-12-06 23:56:40,197 INFO L78 Accepts]: Start accepts. Automaton has 3876 states and 5433 transitions. Word has length 102 [2021-12-06 23:56:40,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:56:40,197 INFO L470 AbstractCegarLoop]: Abstraction has 3876 states and 5433 transitions. [2021-12-06 23:56:40,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 16 states have internal predecessors, (60), 6 states have call successors, (23), 2 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 6 states have call successors, (22) [2021-12-06 23:56:40,197 INFO L276 IsEmpty]: Start isEmpty. Operand 3876 states and 5433 transitions. [2021-12-06 23:56:40,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-06 23:56:40,198 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:56:40,198 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:56:40,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-12-06 23:56:40,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:56:40,400 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 23:56:40,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:56:40,400 INFO L85 PathProgramCache]: Analyzing trace with hash -321368075, now seen corresponding path program 1 times [2021-12-06 23:56:40,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:56:40,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2046614066] [2021-12-06 23:56:40,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:56:40,409 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:56:40,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:56:40,410 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:56:40,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-06 23:56:45,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:56:46,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 4008 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:56:46,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:56:47,673 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-12-06 23:56:47,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:56:48,360 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-12-06 23:56:48,361 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:56:48,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2046614066] [2021-12-06 23:56:48,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2046614066] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 23:56:48,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 23:56:48,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-12-06 23:56:48,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731217034] [2021-12-06 23:56:48,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:56:48,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:56:48,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:56:48,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:56:48,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:56:48,363 INFO L87 Difference]: Start difference. First operand 3876 states and 5433 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-06 23:56:48,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:56:48,956 INFO L93 Difference]: Finished difference Result 3882 states and 5438 transitions. [2021-12-06 23:56:48,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:56:48,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 87 [2021-12-06 23:56:48,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:56:48,980 INFO L225 Difference]: With dead ends: 3882 [2021-12-06 23:56:48,980 INFO L226 Difference]: Without dead ends: 3880 [2021-12-06 23:56:48,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:56:48,983 INFO L933 BasicCegarLoop]: 5374 mSDtfsCounter, 5338 mSDsluCounter, 10726 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5347 SdHoareTripleChecker+Valid, 16100 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:56:48,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5347 Valid, 16100 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:56:48,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3880 states. [2021-12-06 23:56:49,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3880 to 3880. [2021-12-06 23:56:49,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3880 states, 2507 states have (on average 1.251296370163542) internal successors, (3137), 2610 states have internal predecessors, (3137), 1151 states have call successors, (1151), 220 states have call predecessors, (1151), 219 states have return successors, (1148), 1116 states have call predecessors, (1148), 1148 states have call successors, (1148) [2021-12-06 23:56:49,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3880 states to 3880 states and 5436 transitions. [2021-12-06 23:56:49,181 INFO L78 Accepts]: Start accepts. Automaton has 3880 states and 5436 transitions. Word has length 87 [2021-12-06 23:56:49,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:56:49,181 INFO L470 AbstractCegarLoop]: Abstraction has 3880 states and 5436 transitions. [2021-12-06 23:56:49,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-06 23:56:49,181 INFO L276 IsEmpty]: Start isEmpty. Operand 3880 states and 5436 transitions. [2021-12-06 23:56:49,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-06 23:56:49,183 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:56:49,183 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:56:49,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-12-06 23:56:49,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:56:49,384 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 23:56:49,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:56:49,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1251226064, now seen corresponding path program 1 times [2021-12-06 23:56:49,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:56:49,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126015910] [2021-12-06 23:56:49,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:56:49,388 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:56:49,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:56:49,389 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:56:49,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-06 23:56:54,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:56:55,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 4015 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:56:55,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:56:56,625 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-12-06 23:56:56,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:56:57,370 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-12-06 23:56:57,371 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:56:57,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [126015910] [2021-12-06 23:56:57,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [126015910] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 23:56:57,371 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 23:56:57,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-12-06 23:56:57,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59747722] [2021-12-06 23:56:57,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:56:57,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:56:57,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:56:57,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:56:57,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:56:57,372 INFO L87 Difference]: Start difference. First operand 3880 states and 5436 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-06 23:56:57,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:56:57,954 INFO L93 Difference]: Finished difference Result 3886 states and 5441 transitions. [2021-12-06 23:56:57,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:56:57,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 92 [2021-12-06 23:56:57,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:56:57,969 INFO L225 Difference]: With dead ends: 3886 [2021-12-06 23:56:57,969 INFO L226 Difference]: Without dead ends: 3884 [2021-12-06 23:56:57,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:56:57,972 INFO L933 BasicCegarLoop]: 5374 mSDtfsCounter, 5338 mSDsluCounter, 10726 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5346 SdHoareTripleChecker+Valid, 16100 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:56:57,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5346 Valid, 16100 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:56:57,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3884 states. [2021-12-06 23:56:58,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3884 to 3884. [2021-12-06 23:56:58,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3884 states, 2510 states have (on average 1.250996015936255) internal successors, (3140), 2613 states have internal predecessors, (3140), 1151 states have call successors, (1151), 221 states have call predecessors, (1151), 220 states have return successors, (1148), 1116 states have call predecessors, (1148), 1148 states have call successors, (1148) [2021-12-06 23:56:58,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3884 states to 3884 states and 5439 transitions. [2021-12-06 23:56:58,155 INFO L78 Accepts]: Start accepts. Automaton has 3884 states and 5439 transitions. Word has length 92 [2021-12-06 23:56:58,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:56:58,155 INFO L470 AbstractCegarLoop]: Abstraction has 3884 states and 5439 transitions. [2021-12-06 23:56:58,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-06 23:56:58,156 INFO L276 IsEmpty]: Start isEmpty. Operand 3884 states and 5439 transitions. [2021-12-06 23:56:58,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-06 23:56:58,157 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:56:58,157 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:56:58,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-12-06 23:56:58,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:56:58,358 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 23:56:58,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:56:58,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1205726059, now seen corresponding path program 1 times [2021-12-06 23:56:58,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:56:58,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1325091672] [2021-12-06 23:56:58,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:56:58,362 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:56:58,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:56:58,363 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:56:58,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-12-06 23:57:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:57:04,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 4022 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:57:04,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:57:05,696 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-06 23:57:05,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:57:06,448 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-06 23:57:06,448 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:57:06,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1325091672] [2021-12-06 23:57:06,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1325091672] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 23:57:06,449 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 23:57:06,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-12-06 23:57:06,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282139197] [2021-12-06 23:57:06,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:57:06,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:57:06,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:57:06,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:57:06,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:57:06,450 INFO L87 Difference]: Start difference. First operand 3884 states and 5439 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-06 23:57:07,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:57:07,084 INFO L93 Difference]: Finished difference Result 3890 states and 5444 transitions. [2021-12-06 23:57:07,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:57:07,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 97 [2021-12-06 23:57:07,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:57:07,094 INFO L225 Difference]: With dead ends: 3890 [2021-12-06 23:57:07,094 INFO L226 Difference]: Without dead ends: 3888 [2021-12-06 23:57:07,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:57:07,096 INFO L933 BasicCegarLoop]: 5374 mSDtfsCounter, 5338 mSDsluCounter, 10726 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5345 SdHoareTripleChecker+Valid, 16100 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:57:07,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5345 Valid, 16100 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:57:07,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3888 states. [2021-12-06 23:57:07,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3888 to 3888. [2021-12-06 23:57:07,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3888 states, 2513 states have (on average 1.2506963788300836) internal successors, (3143), 2616 states have internal predecessors, (3143), 1151 states have call successors, (1151), 222 states have call predecessors, (1151), 221 states have return successors, (1148), 1116 states have call predecessors, (1148), 1148 states have call successors, (1148) [2021-12-06 23:57:07,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3888 states to 3888 states and 5442 transitions. [2021-12-06 23:57:07,265 INFO L78 Accepts]: Start accepts. Automaton has 3888 states and 5442 transitions. Word has length 97 [2021-12-06 23:57:07,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:57:07,266 INFO L470 AbstractCegarLoop]: Abstraction has 3888 states and 5442 transitions. [2021-12-06 23:57:07,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-06 23:57:07,266 INFO L276 IsEmpty]: Start isEmpty. Operand 3888 states and 5442 transitions. [2021-12-06 23:57:07,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-12-06 23:57:07,267 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:57:07,267 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:57:07,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-12-06 23:57:07,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:57:07,468 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 23:57:07,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:57:07,468 INFO L85 PathProgramCache]: Analyzing trace with hash 383655184, now seen corresponding path program 1 times [2021-12-06 23:57:07,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:57:07,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136222779] [2021-12-06 23:57:07,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:57:07,472 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:57:07,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:57:07,472 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:57:07,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-12-06 23:57:12,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:57:13,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 4029 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:57:13,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:57:14,879 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2021-12-06 23:57:14,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:57:15,664 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2021-12-06 23:57:15,665 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:57:15,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136222779] [2021-12-06 23:57:15,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136222779] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 23:57:15,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 23:57:15,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-12-06 23:57:15,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939896478] [2021-12-06 23:57:15,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:57:15,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:57:15,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:57:15,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:57:15,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:57:15,666 INFO L87 Difference]: Start difference. First operand 3888 states and 5442 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 23:57:16,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:57:16,302 INFO L93 Difference]: Finished difference Result 3894 states and 5447 transitions. [2021-12-06 23:57:16,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:57:16,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 102 [2021-12-06 23:57:16,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:57:16,313 INFO L225 Difference]: With dead ends: 3894 [2021-12-06 23:57:16,313 INFO L226 Difference]: Without dead ends: 3892 [2021-12-06 23:57:16,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:57:16,315 INFO L933 BasicCegarLoop]: 5374 mSDtfsCounter, 5338 mSDsluCounter, 10726 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5344 SdHoareTripleChecker+Valid, 16100 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:57:16,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5344 Valid, 16100 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:57:16,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3892 states. [2021-12-06 23:57:16,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3892 to 3892. [2021-12-06 23:57:16,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3892 states, 2516 states have (on average 1.2503974562798092) internal successors, (3146), 2619 states have internal predecessors, (3146), 1151 states have call successors, (1151), 223 states have call predecessors, (1151), 222 states have return successors, (1148), 1116 states have call predecessors, (1148), 1148 states have call successors, (1148) [2021-12-06 23:57:16,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3892 states to 3892 states and 5445 transitions. [2021-12-06 23:57:16,507 INFO L78 Accepts]: Start accepts. Automaton has 3892 states and 5445 transitions. Word has length 102 [2021-12-06 23:57:16,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:57:16,507 INFO L470 AbstractCegarLoop]: Abstraction has 3892 states and 5445 transitions. [2021-12-06 23:57:16,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 23:57:16,508 INFO L276 IsEmpty]: Start isEmpty. Operand 3892 states and 5445 transitions. [2021-12-06 23:57:16,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-06 23:57:16,509 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:57:16,509 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:57:16,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-12-06 23:57:16,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:57:16,710 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 23:57:16,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:57:16,710 INFO L85 PathProgramCache]: Analyzing trace with hash 107495733, now seen corresponding path program 1 times [2021-12-06 23:57:16,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:57:16,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [8708133] [2021-12-06 23:57:16,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:57:16,714 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:57:16,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:57:16,714 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:57:16,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-12-06 23:57:21,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:57:22,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 4036 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:57:22,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:57:24,280 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-12-06 23:57:24,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:57:25,102 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-12-06 23:57:25,102 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:57:25,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [8708133] [2021-12-06 23:57:25,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [8708133] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 23:57:25,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 23:57:25,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-12-06 23:57:25,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120144175] [2021-12-06 23:57:25,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:57:25,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:57:25,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:57:25,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:57:25,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:57:25,103 INFO L87 Difference]: Start difference. First operand 3892 states and 5445 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-06 23:57:25,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:57:25,764 INFO L93 Difference]: Finished difference Result 3979 states and 5526 transitions. [2021-12-06 23:57:25,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:57:25,765 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 107 [2021-12-06 23:57:25,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:57:25,776 INFO L225 Difference]: With dead ends: 3979 [2021-12-06 23:57:25,776 INFO L226 Difference]: Without dead ends: 3977 [2021-12-06 23:57:25,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:57:25,778 INFO L933 BasicCegarLoop]: 5417 mSDtfsCounter, 4814 mSDsluCounter, 11410 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4819 SdHoareTripleChecker+Valid, 16827 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:57:25,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4819 Valid, 16827 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:57:25,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3977 states. [2021-12-06 23:57:25,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3977 to 3975. [2021-12-06 23:57:25,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3975 states, 2572 states have (on average 1.2465007776049766) internal successors, (3206), 2675 states have internal predecessors, (3206), 1160 states have call successors, (1160), 241 states have call predecessors, (1160), 240 states have return successors, (1157), 1125 states have call predecessors, (1157), 1157 states have call successors, (1157) [2021-12-06 23:57:26,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3975 states to 3975 states and 5523 transitions. [2021-12-06 23:57:26,004 INFO L78 Accepts]: Start accepts. Automaton has 3975 states and 5523 transitions. Word has length 107 [2021-12-06 23:57:26,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:57:26,004 INFO L470 AbstractCegarLoop]: Abstraction has 3975 states and 5523 transitions. [2021-12-06 23:57:26,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-06 23:57:26,004 INFO L276 IsEmpty]: Start isEmpty. Operand 3975 states and 5523 transitions. [2021-12-06 23:57:26,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-06 23:57:26,006 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:57:26,006 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:57:26,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-12-06 23:57:26,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:57:26,207 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 23:57:26,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:57:26,207 INFO L85 PathProgramCache]: Analyzing trace with hash -355138576, now seen corresponding path program 1 times [2021-12-06 23:57:26,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:57:26,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [631669481] [2021-12-06 23:57:26,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:57:26,211 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:57:26,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:57:26,211 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:57:26,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-12-06 23:57:31,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:57:31,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 4043 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:57:31,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:57:33,804 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2021-12-06 23:57:33,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:57:34,648 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2021-12-06 23:57:34,648 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:57:34,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [631669481] [2021-12-06 23:57:34,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [631669481] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 23:57:34,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 23:57:34,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-12-06 23:57:34,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820914110] [2021-12-06 23:57:34,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:57:34,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:57:34,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:57:34,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:57:34,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:57:34,650 INFO L87 Difference]: Start difference. First operand 3975 states and 5523 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-06 23:57:35,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:57:35,309 INFO L93 Difference]: Finished difference Result 3981 states and 5528 transitions. [2021-12-06 23:57:35,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:57:35,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 112 [2021-12-06 23:57:35,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:57:35,323 INFO L225 Difference]: With dead ends: 3981 [2021-12-06 23:57:35,323 INFO L226 Difference]: Without dead ends: 3979 [2021-12-06 23:57:35,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:57:35,326 INFO L933 BasicCegarLoop]: 5374 mSDtfsCounter, 5338 mSDsluCounter, 10726 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5342 SdHoareTripleChecker+Valid, 16100 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:57:35,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5342 Valid, 16100 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:57:35,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3979 states. [2021-12-06 23:57:35,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3979 to 3979. [2021-12-06 23:57:35,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3979 states, 2575 states have (on average 1.2462135922330098) internal successors, (3209), 2678 states have internal predecessors, (3209), 1160 states have call successors, (1160), 242 states have call predecessors, (1160), 241 states have return successors, (1157), 1125 states have call predecessors, (1157), 1157 states have call successors, (1157) [2021-12-06 23:57:35,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3979 states to 3979 states and 5526 transitions. [2021-12-06 23:57:35,553 INFO L78 Accepts]: Start accepts. Automaton has 3979 states and 5526 transitions. Word has length 112 [2021-12-06 23:57:35,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:57:35,554 INFO L470 AbstractCegarLoop]: Abstraction has 3979 states and 5526 transitions. [2021-12-06 23:57:35,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-06 23:57:35,554 INFO L276 IsEmpty]: Start isEmpty. Operand 3979 states and 5526 transitions. [2021-12-06 23:57:35,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-06 23:57:35,555 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:57:35,555 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:57:35,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-12-06 23:57:35,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:57:35,756 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 23:57:35,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:57:35,756 INFO L85 PathProgramCache]: Analyzing trace with hash 893965781, now seen corresponding path program 1 times [2021-12-06 23:57:35,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:57:35,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1455935191] [2021-12-06 23:57:35,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:57:35,760 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:57:35,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:57:35,761 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:57:35,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-12-06 23:57:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:57:41,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 4050 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:57:41,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:57:43,460 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2021-12-06 23:57:43,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:57:44,319 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2021-12-06 23:57:44,319 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:57:44,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1455935191] [2021-12-06 23:57:44,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1455935191] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 23:57:44,319 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 23:57:44,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-12-06 23:57:44,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860973253] [2021-12-06 23:57:44,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:57:44,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:57:44,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:57:44,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:57:44,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:57:44,321 INFO L87 Difference]: Start difference. First operand 3979 states and 5526 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 23:57:45,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:57:45,003 INFO L93 Difference]: Finished difference Result 3985 states and 5531 transitions. [2021-12-06 23:57:45,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:57:45,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 117 [2021-12-06 23:57:45,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:57:45,013 INFO L225 Difference]: With dead ends: 3985 [2021-12-06 23:57:45,014 INFO L226 Difference]: Without dead ends: 3983 [2021-12-06 23:57:45,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:57:45,016 INFO L933 BasicCegarLoop]: 5374 mSDtfsCounter, 5338 mSDsluCounter, 10726 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5341 SdHoareTripleChecker+Valid, 16100 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:57:45,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5341 Valid, 16100 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:57:45,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3983 states. [2021-12-06 23:57:45,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3983 to 3983. [2021-12-06 23:57:45,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3983 states, 2578 states have (on average 1.2459270752521334) internal successors, (3212), 2681 states have internal predecessors, (3212), 1160 states have call successors, (1160), 243 states have call predecessors, (1160), 242 states have return successors, (1157), 1125 states have call predecessors, (1157), 1157 states have call successors, (1157) [2021-12-06 23:57:45,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3983 states to 3983 states and 5529 transitions. [2021-12-06 23:57:45,253 INFO L78 Accepts]: Start accepts. Automaton has 3983 states and 5529 transitions. Word has length 117 [2021-12-06 23:57:45,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:57:45,253 INFO L470 AbstractCegarLoop]: Abstraction has 3983 states and 5529 transitions. [2021-12-06 23:57:45,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 23:57:45,253 INFO L276 IsEmpty]: Start isEmpty. Operand 3983 states and 5529 transitions. [2021-12-06 23:57:45,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-06 23:57:45,254 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:57:45,255 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 12, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:57:45,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-12-06 23:57:45,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:57:45,456 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 23:57:45,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:57:45,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1502444848, now seen corresponding path program 1 times [2021-12-06 23:57:45,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:57:45,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2012838008] [2021-12-06 23:57:45,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:57:45,472 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:57:45,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:57:45,474 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:57:45,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-12-06 23:57:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:57:51,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 4057 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:57:51,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:57:53,404 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-12-06 23:57:53,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:57:54,275 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-12-06 23:57:54,275 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:57:54,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2012838008] [2021-12-06 23:57:54,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2012838008] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 23:57:54,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 23:57:54,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-12-06 23:57:54,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566242840] [2021-12-06 23:57:54,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:57:54,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:57:54,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:57:54,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:57:54,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:57:54,277 INFO L87 Difference]: Start difference. First operand 3983 states and 5529 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-06 23:57:54,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:57:54,962 INFO L93 Difference]: Finished difference Result 3989 states and 5534 transitions. [2021-12-06 23:57:54,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:57:54,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 122 [2021-12-06 23:57:54,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:57:54,972 INFO L225 Difference]: With dead ends: 3989 [2021-12-06 23:57:54,972 INFO L226 Difference]: Without dead ends: 3987 [2021-12-06 23:57:54,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:57:54,974 INFO L933 BasicCegarLoop]: 5374 mSDtfsCounter, 5338 mSDsluCounter, 10726 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5340 SdHoareTripleChecker+Valid, 16100 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:57:54,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5340 Valid, 16100 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:57:54,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3987 states. [2021-12-06 23:57:55,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3987 to 3987. [2021-12-06 23:57:55,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3987 states, 2581 states have (on average 1.2456412243316544) internal successors, (3215), 2684 states have internal predecessors, (3215), 1160 states have call successors, (1160), 244 states have call predecessors, (1160), 243 states have return successors, (1157), 1125 states have call predecessors, (1157), 1157 states have call successors, (1157) [2021-12-06 23:57:55,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3987 states to 3987 states and 5532 transitions. [2021-12-06 23:57:55,219 INFO L78 Accepts]: Start accepts. Automaton has 3987 states and 5532 transitions. Word has length 122 [2021-12-06 23:57:55,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:57:55,219 INFO L470 AbstractCegarLoop]: Abstraction has 3987 states and 5532 transitions. [2021-12-06 23:57:55,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-06 23:57:55,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3987 states and 5532 transitions. [2021-12-06 23:57:55,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-06 23:57:55,221 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:57:55,221 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:57:55,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-12-06 23:57:55,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:57:55,423 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 23:57:55,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:57:55,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1260268939, now seen corresponding path program 1 times [2021-12-06 23:57:55,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:57:55,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [254357282] [2021-12-06 23:57:55,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:57:55,438 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:57:55,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:57:55,441 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:57:55,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-12-06 23:58:00,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:58:01,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 4064 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:58:01,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:58:03,329 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2021-12-06 23:58:03,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:58:04,216 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2021-12-06 23:58:04,217 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:58:04,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [254357282] [2021-12-06 23:58:04,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [254357282] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 23:58:04,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 23:58:04,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-12-06 23:58:04,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054239092] [2021-12-06 23:58:04,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:58:04,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:58:04,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:58:04,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:58:04,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:58:04,218 INFO L87 Difference]: Start difference. First operand 3987 states and 5532 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 23:58:04,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:58:04,903 INFO L93 Difference]: Finished difference Result 3993 states and 5537 transitions. [2021-12-06 23:58:04,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:58:04,903 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 127 [2021-12-06 23:58:04,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:58:04,912 INFO L225 Difference]: With dead ends: 3993 [2021-12-06 23:58:04,912 INFO L226 Difference]: Without dead ends: 3989 [2021-12-06 23:58:04,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:58:04,914 INFO L933 BasicCegarLoop]: 5374 mSDtfsCounter, 5338 mSDsluCounter, 10726 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5339 SdHoareTripleChecker+Valid, 16100 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:58:04,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5339 Valid, 16100 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:58:04,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3989 states. [2021-12-06 23:58:05,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3989 to 3989. [2021-12-06 23:58:05,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3989 states, 2583 states have (on average 1.2450638792102207) internal successors, (3216), 2685 states have internal predecessors, (3216), 1160 states have call successors, (1160), 245 states have call predecessors, (1160), 243 states have return successors, (1157), 1125 states have call predecessors, (1157), 1157 states have call successors, (1157) [2021-12-06 23:58:05,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3989 states to 3989 states and 5533 transitions. [2021-12-06 23:58:05,162 INFO L78 Accepts]: Start accepts. Automaton has 3989 states and 5533 transitions. Word has length 127 [2021-12-06 23:58:05,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:58:05,162 INFO L470 AbstractCegarLoop]: Abstraction has 3989 states and 5533 transitions. [2021-12-06 23:58:05,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 23:58:05,162 INFO L276 IsEmpty]: Start isEmpty. Operand 3989 states and 5533 transitions. [2021-12-06 23:58:05,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-06 23:58:05,164 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:58:05,164 INFO L514 BasicCegarLoop]: trace histogram [15, 14, 14, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:58:05,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-12-06 23:58:05,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:58:05,366 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 23:58:05,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:58:05,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1012439472, now seen corresponding path program 1 times [2021-12-06 23:58:05,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:58:05,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1824795930] [2021-12-06 23:58:05,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:58:05,381 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:58:05,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:58:05,383 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:58:05,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-12-06 23:58:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:58:11,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 4071 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:58:11,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:58:13,726 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2021-12-06 23:58:13,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:58:14,694 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2021-12-06 23:58:14,694 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:58:14,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1824795930] [2021-12-06 23:58:14,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1824795930] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 23:58:14,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 23:58:14,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-12-06 23:58:14,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570642590] [2021-12-06 23:58:14,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:58:14,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:58:14,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:58:14,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:58:14,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:58:14,696 INFO L87 Difference]: Start difference. First operand 3989 states and 5533 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-06 23:58:15,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:58:15,410 INFO L93 Difference]: Finished difference Result 4053 states and 5592 transitions. [2021-12-06 23:58:15,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:58:15,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 132 [2021-12-06 23:58:15,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:58:15,418 INFO L225 Difference]: With dead ends: 4053 [2021-12-06 23:58:15,418 INFO L226 Difference]: Without dead ends: 3881 [2021-12-06 23:58:15,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:58:15,420 INFO L933 BasicCegarLoop]: 5379 mSDtfsCounter, 5291 mSDsluCounter, 10836 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5291 SdHoareTripleChecker+Valid, 16215 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:58:15,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5291 Valid, 16215 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:58:15,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3881 states. [2021-12-06 23:58:15,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3881 to 3877. [2021-12-06 23:58:15,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3877 states, 2513 states have (on average 1.2487067250298447) internal successors, (3138), 2609 states have internal predecessors, (3138), 1121 states have call successors, (1121), 241 states have call predecessors, (1121), 241 states have return successors, (1121), 1091 states have call predecessors, (1121), 1121 states have call successors, (1121) [2021-12-06 23:58:15,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3877 states to 3877 states and 5380 transitions. [2021-12-06 23:58:15,659 INFO L78 Accepts]: Start accepts. Automaton has 3877 states and 5380 transitions. Word has length 132 [2021-12-06 23:58:15,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:58:15,660 INFO L470 AbstractCegarLoop]: Abstraction has 3877 states and 5380 transitions. [2021-12-06 23:58:15,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-06 23:58:15,660 INFO L276 IsEmpty]: Start isEmpty. Operand 3877 states and 5380 transitions. [2021-12-06 23:58:15,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-12-06 23:58:15,662 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:58:15,662 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:58:15,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-12-06 23:58:15,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:58:15,864 INFO L402 AbstractCegarLoop]: === Iteration 17 === 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)] === [2021-12-06 23:58:15,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:58:15,865 INFO L85 PathProgramCache]: Analyzing trace with hash 440482966, now seen corresponding path program 1 times [2021-12-06 23:58:15,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:58:15,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [381416562] [2021-12-06 23:58:15,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:58:15,881 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:58:15,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:58:15,883 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:58:15,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-12-06 23:58:21,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:58:22,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 4425 conjuncts, 37 conjunts are in the unsatisfiable core [2021-12-06 23:58:22,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:58:26,815 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2021-12-06 23:58:26,815 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:58:26,815 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:58:26,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [381416562] [2021-12-06 23:58:26,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [381416562] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:58:26,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:58:26,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-12-06 23:58:26,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828484341] [2021-12-06 23:58:26,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:58:26,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-06 23:58:26,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:58:26,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-06 23:58:26,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-06 23:58:26,818 INFO L87 Difference]: Start difference. First operand 3877 states and 5380 transitions. Second operand has 15 states, 13 states have (on average 7.769230769230769) internal successors, (101), 11 states have internal predecessors, (101), 4 states have call successors, (33), 2 states have call predecessors, (33), 6 states have return successors, (27), 7 states have call predecessors, (27), 4 states have call successors, (27) [2021-12-06 23:58:34,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:58:34,419 INFO L93 Difference]: Finished difference Result 8180 states and 11410 transitions. [2021-12-06 23:58:34,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-06 23:58:34,420 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 7.769230769230769) internal successors, (101), 11 states have internal predecessors, (101), 4 states have call successors, (33), 2 states have call predecessors, (33), 6 states have return successors, (27), 7 states have call predecessors, (27), 4 states have call successors, (27) Word has length 218 [2021-12-06 23:58:34,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:58:34,431 INFO L225 Difference]: With dead ends: 8180 [2021-12-06 23:58:34,431 INFO L226 Difference]: Without dead ends: 4380 [2021-12-06 23:58:34,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2021-12-06 23:58:34,444 INFO L933 BasicCegarLoop]: 5509 mSDtfsCounter, 1122 mSDsluCounter, 53919 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1267 SdHoareTripleChecker+Valid, 59428 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-12-06 23:58:34,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1267 Valid, 59428 Invalid, 916 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [252 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2021-12-06 23:58:34,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4380 states. [2021-12-06 23:58:34,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4380 to 3877. [2021-12-06 23:58:34,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3877 states, 2513 states have (on average 1.248308794269797) internal successors, (3137), 2608 states have internal predecessors, (3137), 1121 states have call successors, (1121), 241 states have call predecessors, (1121), 241 states have return successors, (1121), 1091 states have call predecessors, (1121), 1121 states have call successors, (1121) [2021-12-06 23:58:34,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3877 states to 3877 states and 5379 transitions. [2021-12-06 23:58:34,712 INFO L78 Accepts]: Start accepts. Automaton has 3877 states and 5379 transitions. Word has length 218 [2021-12-06 23:58:34,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:58:34,712 INFO L470 AbstractCegarLoop]: Abstraction has 3877 states and 5379 transitions. [2021-12-06 23:58:34,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 7.769230769230769) internal successors, (101), 11 states have internal predecessors, (101), 4 states have call successors, (33), 2 states have call predecessors, (33), 6 states have return successors, (27), 7 states have call predecessors, (27), 4 states have call successors, (27) [2021-12-06 23:58:34,713 INFO L276 IsEmpty]: Start isEmpty. Operand 3877 states and 5379 transitions. [2021-12-06 23:58:34,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-12-06 23:58:34,715 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:58:34,715 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:58:34,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2021-12-06 23:58:34,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:58:34,917 INFO L402 AbstractCegarLoop]: === Iteration 18 === 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)] === [2021-12-06 23:58:34,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:58:34,919 INFO L85 PathProgramCache]: Analyzing trace with hash 2129310483, now seen corresponding path program 1 times [2021-12-06 23:58:34,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:58:34,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [861541249] [2021-12-06 23:58:34,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:58:34,934 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:58:34,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:58:34,936 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:58:34,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-12-06 23:58:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:58:42,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 4437 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-06 23:58:42,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:58:44,737 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2021-12-06 23:58:44,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:58:44,737 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:58:44,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [861541249] [2021-12-06 23:58:44,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [861541249] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:58:44,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:58:44,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-12-06 23:58:44,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767080097] [2021-12-06 23:58:44,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:58:44,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-06 23:58:44,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:58:44,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-06 23:58:44,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2021-12-06 23:58:44,739 INFO L87 Difference]: Start difference. First operand 3877 states and 5379 transitions. Second operand has 14 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 12 states have internal predecessors, (100), 5 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (26), 6 states have call predecessors, (26), 5 states have call successors, (26) [2021-12-06 23:58:53,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:58:53,868 INFO L93 Difference]: Finished difference Result 8277 states and 11531 transitions. [2021-12-06 23:58:53,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-06 23:58:53,869 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 12 states have internal predecessors, (100), 5 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (26), 6 states have call predecessors, (26), 5 states have call successors, (26) Word has length 222 [2021-12-06 23:58:53,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:58:53,881 INFO L225 Difference]: With dead ends: 8277 [2021-12-06 23:58:53,881 INFO L226 Difference]: Without dead ends: 4480 [2021-12-06 23:58:53,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2021-12-06 23:58:53,894 INFO L933 BasicCegarLoop]: 5545 mSDtfsCounter, 1085 mSDsluCounter, 65276 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 317 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 70821 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 317 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:58:53,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1198 Valid, 70821 Invalid, 1180 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [317 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2021-12-06 23:58:53,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4480 states. [2021-12-06 23:58:54,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4480 to 3884. [2021-12-06 23:58:54,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3884 states, 2518 states have (on average 1.2478157267672756) internal successors, (3142), 2613 states have internal predecessors, (3142), 1123 states have call successors, (1123), 241 states have call predecessors, (1123), 241 states have return successors, (1123), 1093 states have call predecessors, (1123), 1123 states have call successors, (1123) [2021-12-06 23:58:54,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3884 states to 3884 states and 5388 transitions. [2021-12-06 23:58:54,172 INFO L78 Accepts]: Start accepts. Automaton has 3884 states and 5388 transitions. Word has length 222 [2021-12-06 23:58:54,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:58:54,172 INFO L470 AbstractCegarLoop]: Abstraction has 3884 states and 5388 transitions. [2021-12-06 23:58:54,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 12 states have internal predecessors, (100), 5 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (26), 6 states have call predecessors, (26), 5 states have call successors, (26) [2021-12-06 23:58:54,172 INFO L276 IsEmpty]: Start isEmpty. Operand 3884 states and 5388 transitions. [2021-12-06 23:58:54,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-12-06 23:58:54,174 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:58:54,174 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:58:54,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2021-12-06 23:58:54,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:58:54,376 INFO L402 AbstractCegarLoop]: === Iteration 19 === 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)] === [2021-12-06 23:58:54,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:58:54,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1895841826, now seen corresponding path program 1 times [2021-12-06 23:58:54,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:58:54,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977984229] [2021-12-06 23:58:54,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:58:54,392 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:58:54,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:58:54,394 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:58:54,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-12-06 23:59:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:02,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 4442 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 23:59:02,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:02,615 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2021-12-06 23:59:02,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:02,615 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:02,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977984229] [2021-12-06 23:59:02,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [977984229] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:02,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:02,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:59:02,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142534541] [2021-12-06 23:59:02,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:02,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:59:02,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:02,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:59:02,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:59:02,618 INFO L87 Difference]: Start difference. First operand 3884 states and 5388 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2021-12-06 23:59:03,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:03,067 INFO L93 Difference]: Finished difference Result 7693 states and 10697 transitions. [2021-12-06 23:59:03,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:59:03,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 240 [2021-12-06 23:59:03,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:03,081 INFO L225 Difference]: With dead ends: 7693 [2021-12-06 23:59:03,081 INFO L226 Difference]: Without dead ends: 3890 [2021-12-06 23:59:03,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:59:03,095 INFO L933 BasicCegarLoop]: 5212 mSDtfsCounter, 3 mSDsluCounter, 10420 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 15632 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:03,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 15632 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:59:03,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3890 states. [2021-12-06 23:59:03,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3890 to 3887. [2021-12-06 23:59:03,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3887 states, 2521 states have (on average 1.247520825069417) internal successors, (3145), 2616 states have internal predecessors, (3145), 1123 states have call successors, (1123), 241 states have call predecessors, (1123), 241 states have return successors, (1123), 1093 states have call predecessors, (1123), 1123 states have call successors, (1123) [2021-12-06 23:59:03,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3887 states to 3887 states and 5391 transitions. [2021-12-06 23:59:03,368 INFO L78 Accepts]: Start accepts. Automaton has 3887 states and 5391 transitions. Word has length 240 [2021-12-06 23:59:03,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:03,368 INFO L470 AbstractCegarLoop]: Abstraction has 3887 states and 5391 transitions. [2021-12-06 23:59:03,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2021-12-06 23:59:03,369 INFO L276 IsEmpty]: Start isEmpty. Operand 3887 states and 5391 transitions. [2021-12-06 23:59:03,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-12-06 23:59:03,370 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:03,370 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:03,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2021-12-06 23:59:03,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:03,572 INFO L402 AbstractCegarLoop]: === Iteration 20 === 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)] === [2021-12-06 23:59:03,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:03,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1111254878, now seen corresponding path program 1 times [2021-12-06 23:59:03,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:03,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [50293721] [2021-12-06 23:59:03,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:03,588 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:03,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:03,590 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:03,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-12-06 23:59:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:11,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 4444 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-06 23:59:11,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:15,427 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2021-12-06 23:59:15,427 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:15,427 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:15,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [50293721] [2021-12-06 23:59:15,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [50293721] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:15,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:15,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:59:15,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911618384] [2021-12-06 23:59:15,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:15,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:59:15,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:15,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:59:15,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:59:15,429 INFO L87 Difference]: Start difference. First operand 3887 states and 5391 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2021-12-06 23:59:15,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:15,962 INFO L93 Difference]: Finished difference Result 3895 states and 5397 transitions. [2021-12-06 23:59:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:59:15,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 240 [2021-12-06 23:59:15,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:15,975 INFO L225 Difference]: With dead ends: 3895 [2021-12-06 23:59:15,975 INFO L226 Difference]: Without dead ends: 3893 [2021-12-06 23:59:15,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:59:15,977 INFO L933 BasicCegarLoop]: 5253 mSDtfsCounter, 4560 mSDsluCounter, 11101 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4561 SdHoareTripleChecker+Valid, 16354 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:15,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4561 Valid, 16354 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:59:15,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3893 states. [2021-12-06 23:59:16,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3893 to 3891. [2021-12-06 23:59:16,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3891 states, 2524 states have (on average 1.2472266244057053) internal successors, (3148), 2619 states have internal predecessors, (3148), 1123 states have call successors, (1123), 242 states have call predecessors, (1123), 242 states have return successors, (1123), 1093 states have call predecessors, (1123), 1123 states have call successors, (1123) [2021-12-06 23:59:16,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3891 states to 3891 states and 5394 transitions. [2021-12-06 23:59:16,242 INFO L78 Accepts]: Start accepts. Automaton has 3891 states and 5394 transitions. Word has length 240 [2021-12-06 23:59:16,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:16,243 INFO L470 AbstractCegarLoop]: Abstraction has 3891 states and 5394 transitions. [2021-12-06 23:59:16,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2021-12-06 23:59:16,243 INFO L276 IsEmpty]: Start isEmpty. Operand 3891 states and 5394 transitions. [2021-12-06 23:59:16,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2021-12-06 23:59:16,246 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:16,247 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:16,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2021-12-06 23:59:16,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:16,447 INFO L402 AbstractCegarLoop]: === Iteration 21 === 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)] === [2021-12-06 23:59:16,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:16,448 INFO L85 PathProgramCache]: Analyzing trace with hash 816547022, now seen corresponding path program 1 times [2021-12-06 23:59:16,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:16,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [459250093] [2021-12-06 23:59:16,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:16,452 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:16,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:16,453 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:16,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-12-06 23:59:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:24,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 4601 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-06 23:59:24,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:29,124 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2021-12-06 23:59:29,124 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:29,125 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:29,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [459250093] [2021-12-06 23:59:29,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [459250093] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:29,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:29,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:59:29,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160367518] [2021-12-06 23:59:29,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:29,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:59:29,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:29,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:59:29,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:59:29,126 INFO L87 Difference]: Start difference. First operand 3891 states and 5394 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2021-12-06 23:59:29,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:29,644 INFO L93 Difference]: Finished difference Result 3899 states and 5400 transitions. [2021-12-06 23:59:29,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:59:29,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 289 [2021-12-06 23:59:29,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:29,653 INFO L225 Difference]: With dead ends: 3899 [2021-12-06 23:59:29,654 INFO L226 Difference]: Without dead ends: 3897 [2021-12-06 23:59:29,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:59:29,655 INFO L933 BasicCegarLoop]: 5241 mSDtfsCounter, 5012 mSDsluCounter, 10524 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5013 SdHoareTripleChecker+Valid, 15765 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:29,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5013 Valid, 15765 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:59:29,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3897 states. [2021-12-06 23:59:29,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3897 to 3895. [2021-12-06 23:59:29,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3895 states, 2527 states have (on average 1.2465373961218837) internal successors, (3150), 2622 states have internal predecessors, (3150), 1123 states have call successors, (1123), 243 states have call predecessors, (1123), 243 states have return successors, (1123), 1093 states have call predecessors, (1123), 1123 states have call successors, (1123) [2021-12-06 23:59:29,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3895 states to 3895 states and 5396 transitions. [2021-12-06 23:59:29,904 INFO L78 Accepts]: Start accepts. Automaton has 3895 states and 5396 transitions. Word has length 289 [2021-12-06 23:59:29,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:29,904 INFO L470 AbstractCegarLoop]: Abstraction has 3895 states and 5396 transitions. [2021-12-06 23:59:29,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2021-12-06 23:59:29,904 INFO L276 IsEmpty]: Start isEmpty. Operand 3895 states and 5396 transitions. [2021-12-06 23:59:29,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2021-12-06 23:59:29,910 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:29,910 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:29,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-12-06 23:59:30,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:30,111 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_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)] === [2021-12-06 23:59:30,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:30,111 INFO L85 PathProgramCache]: Analyzing trace with hash 2003865593, now seen corresponding path program 1 times [2021-12-06 23:59:30,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:30,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1212325781] [2021-12-06 23:59:30,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:30,115 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:30,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:30,116 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:30,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-12-06 23:59:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:38,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 4715 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-06 23:59:38,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:39,230 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 531 trivial. 0 not checked. [2021-12-06 23:59:39,230 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:39,230 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:39,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1212325781] [2021-12-06 23:59:39,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1212325781] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:39,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:39,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 23:59:39,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079544271] [2021-12-06 23:59:39,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:39,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 23:59:39,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:39,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 23:59:39,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 23:59:39,232 INFO L87 Difference]: Start difference. First operand 3895 states and 5396 transitions. Second operand has 8 states, 7 states have (on average 19.714285714285715) internal successors, (138), 6 states have internal predecessors, (138), 3 states have call successors, (46), 2 states have call predecessors, (46), 3 states have return successors, (40), 4 states have call predecessors, (40), 2 states have call successors, (40) [2021-12-06 23:59:42,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:42,120 INFO L93 Difference]: Finished difference Result 7725 states and 10737 transitions. [2021-12-06 23:59:42,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 23:59:42,121 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 19.714285714285715) internal successors, (138), 6 states have internal predecessors, (138), 3 states have call successors, (46), 2 states have call predecessors, (46), 3 states have return successors, (40), 4 states have call predecessors, (40), 2 states have call successors, (40) Word has length 327 [2021-12-06 23:59:42,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:42,134 INFO L225 Difference]: With dead ends: 7725 [2021-12-06 23:59:42,134 INFO L226 Difference]: Without dead ends: 3911 [2021-12-06 23:59:42,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:59:42,146 INFO L933 BasicCegarLoop]: 5198 mSDtfsCounter, 9 mSDsluCounter, 31137 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 36335 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:42,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 36335 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-06 23:59:42,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3911 states. [2021-12-06 23:59:42,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3911 to 3901. [2021-12-06 23:59:42,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3901 states, 2531 states have (on average 1.2461477676807586) internal successors, (3154), 2624 states have internal predecessors, (3154), 1125 states have call successors, (1125), 243 states have call predecessors, (1125), 243 states have return successors, (1125), 1095 states have call predecessors, (1125), 1125 states have call successors, (1125) [2021-12-06 23:59:42,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3901 states to 3901 states and 5404 transitions. [2021-12-06 23:59:42,414 INFO L78 Accepts]: Start accepts. Automaton has 3901 states and 5404 transitions. Word has length 327 [2021-12-06 23:59:42,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:42,415 INFO L470 AbstractCegarLoop]: Abstraction has 3901 states and 5404 transitions. [2021-12-06 23:59:42,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 19.714285714285715) internal successors, (138), 6 states have internal predecessors, (138), 3 states have call successors, (46), 2 states have call predecessors, (46), 3 states have return successors, (40), 4 states have call predecessors, (40), 2 states have call successors, (40) [2021-12-06 23:59:42,415 INFO L276 IsEmpty]: Start isEmpty. Operand 3901 states and 5404 transitions. [2021-12-06 23:59:42,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2021-12-06 23:59:42,420 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:42,421 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:42,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-12-06 23:59:42,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:42,623 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_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)] === [2021-12-06 23:59:42,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:42,624 INFO L85 PathProgramCache]: Analyzing trace with hash 601300662, now seen corresponding path program 1 times [2021-12-06 23:59:42,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:42,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [621623056] [2021-12-06 23:59:42,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:42,640 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:42,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:42,642 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:42,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-12-06 23:59:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 4725 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 23:59:50,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:51,489 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 531 trivial. 0 not checked. [2021-12-06 23:59:51,490 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:51,490 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:51,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [621623056] [2021-12-06 23:59:51,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [621623056] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:51,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:51,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 23:59:51,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434310884] [2021-12-06 23:59:51,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:51,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:59:51,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:51,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:59:51,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:59:51,491 INFO L87 Difference]: Start difference. First operand 3901 states and 5404 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 2 states have call successors, (47), 3 states have call predecessors, (47), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-12-06 23:59:52,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:52,377 INFO L93 Difference]: Finished difference Result 3903 states and 5405 transitions. [2021-12-06 23:59:52,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:59:52,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 2 states have call successors, (47), 3 states have call predecessors, (47), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 331 [2021-12-06 23:59:52,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:52,387 INFO L225 Difference]: With dead ends: 3903 [2021-12-06 23:59:52,387 INFO L226 Difference]: Without dead ends: 3901 [2021-12-06 23:59:52,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:59:52,389 INFO L933 BasicCegarLoop]: 5223 mSDtfsCounter, 24 mSDsluCounter, 15637 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 20860 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:52,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 20860 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 23:59:52,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3901 states. [2021-12-06 23:59:52,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3901 to 3901. [2021-12-06 23:59:52,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3901 states, 2531 states have (on average 1.2453575661793757) internal successors, (3152), 2624 states have internal predecessors, (3152), 1125 states have call successors, (1125), 243 states have call predecessors, (1125), 243 states have return successors, (1125), 1095 states have call predecessors, (1125), 1125 states have call successors, (1125) [2021-12-06 23:59:52,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3901 states to 3901 states and 5402 transitions. [2021-12-06 23:59:52,661 INFO L78 Accepts]: Start accepts. Automaton has 3901 states and 5402 transitions. Word has length 331 [2021-12-06 23:59:52,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:52,661 INFO L470 AbstractCegarLoop]: Abstraction has 3901 states and 5402 transitions. [2021-12-06 23:59:52,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 2 states have call successors, (47), 3 states have call predecessors, (47), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-12-06 23:59:52,662 INFO L276 IsEmpty]: Start isEmpty. Operand 3901 states and 5402 transitions. [2021-12-06 23:59:52,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 698 [2021-12-06 23:59:52,671 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:52,672 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 17, 17, 17, 17, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:52,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (24)] Ended with exit code 0 [2021-12-06 23:59:52,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:52,874 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_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)] === [2021-12-06 23:59:52,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:52,876 INFO L85 PathProgramCache]: Analyzing trace with hash -672204253, now seen corresponding path program 1 times [2021-12-06 23:59:52,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:52,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [342921505] [2021-12-06 23:59:52,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:52,894 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:52,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:52,896 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:52,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-12-07 00:00:01,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:01,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 5907 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-07 00:00:01,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:00:06,301 INFO L134 CoverageAnalysis]: Checked inductivity of 2373 backedges. 403 proven. 0 refuted. 0 times theorem prover too weak. 1970 trivial. 0 not checked. [2021-12-07 00:00:06,302 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:00:06,302 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:00:06,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [342921505] [2021-12-07 00:00:06,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [342921505] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:00:06,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:00:06,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 00:00:06,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148473679] [2021-12-07 00:00:06,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:00:06,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:00:06,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:00:06,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:00:06,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:00:06,304 INFO L87 Difference]: Start difference. First operand 3901 states and 5402 transitions. Second operand has 9 states, 7 states have (on average 32.142857142857146) internal successors, (225), 9 states have internal predecessors, (225), 5 states have call successors, (82), 2 states have call predecessors, (82), 5 states have return successors, (78), 5 states have call predecessors, (78), 5 states have call successors, (78) [2021-12-07 00:00:10,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:00:10,005 INFO L93 Difference]: Finished difference Result 6336 states and 8714 transitions. [2021-12-07 00:00:10,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:00:10,006 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 32.142857142857146) internal successors, (225), 9 states have internal predecessors, (225), 5 states have call successors, (82), 2 states have call predecessors, (82), 5 states have return successors, (78), 5 states have call predecessors, (78), 5 states have call successors, (78) Word has length 697 [2021-12-07 00:00:10,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:00:10,016 INFO L225 Difference]: With dead ends: 6336 [2021-12-07 00:00:10,016 INFO L226 Difference]: Without dead ends: 3912 [2021-12-07 00:00:10,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 699 GetRequests, 689 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:00:10,024 INFO L933 BasicCegarLoop]: 5179 mSDtfsCounter, 8 mSDsluCounter, 36155 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 41334 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:00:10,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 41334 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-12-07 00:00:10,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3912 states. [2021-12-07 00:00:10,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3912 to 3909. [2021-12-07 00:00:10,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3909 states, 2536 states have (on average 1.2448738170347002) internal successors, (3157), 2628 states have internal predecessors, (3157), 1128 states have call successors, (1128), 243 states have call predecessors, (1128), 243 states have return successors, (1128), 1098 states have call predecessors, (1128), 1128 states have call successors, (1128) [2021-12-07 00:00:10,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3909 states to 3909 states and 5413 transitions. [2021-12-07 00:00:10,296 INFO L78 Accepts]: Start accepts. Automaton has 3909 states and 5413 transitions. Word has length 697 [2021-12-07 00:00:10,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:00:10,296 INFO L470 AbstractCegarLoop]: Abstraction has 3909 states and 5413 transitions. [2021-12-07 00:00:10,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 32.142857142857146) internal successors, (225), 9 states have internal predecessors, (225), 5 states have call successors, (82), 2 states have call predecessors, (82), 5 states have return successors, (78), 5 states have call predecessors, (78), 5 states have call successors, (78) [2021-12-07 00:00:10,297 INFO L276 IsEmpty]: Start isEmpty. Operand 3909 states and 5413 transitions. [2021-12-07 00:00:10,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2021-12-07 00:00:10,307 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:00:10,307 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 17, 17, 17, 17, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:00:10,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (25)] Ended with exit code 0 [2021-12-07 00:00:10,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:00:10,508 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_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)] === [2021-12-07 00:00:10,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:00:10,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1466337543, now seen corresponding path program 1 times [2021-12-07 00:00:10,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:00:10,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2132445913] [2021-12-07 00:00:10,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:00:10,513 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:00:10,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:00:10,514 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:00:10,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-12-07 00:00:21,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:22,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 5957 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 00:00:22,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:00:24,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2373 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 2095 trivial. 0 not checked. [2021-12-07 00:00:24,603 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:00:24,603 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:00:24,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2132445913] [2021-12-07 00:00:24,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2132445913] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:00:24,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:00:24,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:00:24,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736945439] [2021-12-07 00:00:24,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:00:24,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:00:24,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:00:24,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:00:24,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:00:24,605 INFO L87 Difference]: Start difference. First operand 3909 states and 5413 transitions. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 2 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) [2021-12-07 00:00:24,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:00:24,920 INFO L93 Difference]: Finished difference Result 7761 states and 10834 transitions. [2021-12-07 00:00:24,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:00:24,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 2 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) Word has length 712 [2021-12-07 00:00:24,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:00:24,932 INFO L225 Difference]: With dead ends: 7761 [2021-12-07 00:00:24,932 INFO L226 Difference]: Without dead ends: 3933 [2021-12-07 00:00:24,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 711 GetRequests, 710 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:00:24,943 INFO L933 BasicCegarLoop]: 5216 mSDtfsCounter, 9 mSDsluCounter, 5210 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 10426 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:00:24,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 10426 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:00:24,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3933 states. [2021-12-07 00:00:25,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3933 to 3911. [2021-12-07 00:00:25,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3911 states, 2538 states have (on average 1.2446808510638299) internal successors, (3159), 2630 states have internal predecessors, (3159), 1128 states have call successors, (1128), 243 states have call predecessors, (1128), 243 states have return successors, (1128), 1098 states have call predecessors, (1128), 1128 states have call successors, (1128) [2021-12-07 00:00:25,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3911 states to 3911 states and 5415 transitions. [2021-12-07 00:00:25,214 INFO L78 Accepts]: Start accepts. Automaton has 3911 states and 5415 transitions. Word has length 712 [2021-12-07 00:00:25,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:00:25,214 INFO L470 AbstractCegarLoop]: Abstraction has 3911 states and 5415 transitions. [2021-12-07 00:00:25,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 2 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) [2021-12-07 00:00:25,214 INFO L276 IsEmpty]: Start isEmpty. Operand 3911 states and 5415 transitions. [2021-12-07 00:00:25,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2021-12-07 00:00:25,223 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:00:25,223 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 12, 12, 12, 10, 10, 10, 10, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:00:25,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (26)] Ended with exit code 0 [2021-12-07 00:00:25,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:00:25,425 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_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)] === [2021-12-07 00:00:25,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:00:25,427 INFO L85 PathProgramCache]: Analyzing trace with hash -306406960, now seen corresponding path program 1 times [2021-12-07 00:00:25,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:00:25,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1445641138] [2021-12-07 00:00:25,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:00:25,435 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:00:25,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:00:25,436 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:00:25,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-12-07 00:00:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:38,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 5496 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 00:00:38,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:00:39,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1066 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2021-12-07 00:00:39,726 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:00:39,726 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:00:39,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1445641138] [2021-12-07 00:00:39,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1445641138] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:00:39,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:00:39,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:00:39,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631619077] [2021-12-07 00:00:39,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:00:39,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:00:39,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:00:39,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:00:39,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:00:39,728 INFO L87 Difference]: Start difference. First operand 3911 states and 5415 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2021-12-07 00:00:40,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:00:40,041 INFO L93 Difference]: Finished difference Result 7751 states and 10933 transitions. [2021-12-07 00:00:40,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:00:40,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 549 [2021-12-07 00:00:40,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:00:40,054 INFO L225 Difference]: With dead ends: 7751 [2021-12-07 00:00:40,054 INFO L226 Difference]: Without dead ends: 3921 [2021-12-07 00:00:40,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 547 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:00:40,065 INFO L933 BasicCegarLoop]: 5215 mSDtfsCounter, 8 mSDsluCounter, 5210 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 10425 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:00:40,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 10425 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:00:40,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3921 states. [2021-12-07 00:00:40,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3921 to 3912. [2021-12-07 00:00:40,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3912 states, 2539 states have (on average 1.2445844820795589) internal successors, (3160), 2631 states have internal predecessors, (3160), 1128 states have call successors, (1128), 243 states have call predecessors, (1128), 243 states have return successors, (1128), 1098 states have call predecessors, (1128), 1128 states have call successors, (1128) [2021-12-07 00:00:40,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3912 states to 3912 states and 5416 transitions. [2021-12-07 00:00:40,338 INFO L78 Accepts]: Start accepts. Automaton has 3912 states and 5416 transitions. Word has length 549 [2021-12-07 00:00:40,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:00:40,339 INFO L470 AbstractCegarLoop]: Abstraction has 3912 states and 5416 transitions. [2021-12-07 00:00:40,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2021-12-07 00:00:40,339 INFO L276 IsEmpty]: Start isEmpty. Operand 3912 states and 5416 transitions. [2021-12-07 00:00:40,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2021-12-07 00:00:40,347 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:00:40,347 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 8, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:00:40,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-12-07 00:00:40,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:00:40,548 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_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)] === [2021-12-07 00:00:40,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:00:40,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1593419144, now seen corresponding path program 1 times [2021-12-07 00:00:40,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:00:40,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163400365] [2021-12-07 00:00:40,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:00:40,566 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:00:40,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:00:40,568 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:00:40,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-12-07 00:00:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:50,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 5216 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 00:00:50,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:00:51,274 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2021-12-07 00:00:51,274 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:00:51,274 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:00:51,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163400365] [2021-12-07 00:00:51,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [163400365] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:00:51,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:00:51,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:00:51,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994767829] [2021-12-07 00:00:51,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:00:51,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:00:51,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:00:51,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:00:51,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:00:51,277 INFO L87 Difference]: Start difference. First operand 3912 states and 5416 transitions. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2021-12-07 00:00:51,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:00:51,611 INFO L93 Difference]: Finished difference Result 7753 states and 10780 transitions. [2021-12-07 00:00:51,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:00:51,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 471 [2021-12-07 00:00:51,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:00:51,623 INFO L225 Difference]: With dead ends: 7753 [2021-12-07 00:00:51,623 INFO L226 Difference]: Without dead ends: 3922 [2021-12-07 00:00:51,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:00:51,633 INFO L933 BasicCegarLoop]: 5220 mSDtfsCounter, 5 mSDsluCounter, 5212 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 10432 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:00:51,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 10432 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:00:51,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3922 states. [2021-12-07 00:00:51,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3922 to 3913. [2021-12-07 00:00:51,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3913 states, 2540 states have (on average 1.244488188976378) internal successors, (3161), 2632 states have internal predecessors, (3161), 1128 states have call successors, (1128), 243 states have call predecessors, (1128), 243 states have return successors, (1128), 1098 states have call predecessors, (1128), 1128 states have call successors, (1128) [2021-12-07 00:00:51,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3913 states to 3913 states and 5417 transitions. [2021-12-07 00:00:51,900 INFO L78 Accepts]: Start accepts. Automaton has 3913 states and 5417 transitions. Word has length 471 [2021-12-07 00:00:51,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:00:51,901 INFO L470 AbstractCegarLoop]: Abstraction has 3913 states and 5417 transitions. [2021-12-07 00:00:51,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2021-12-07 00:00:51,901 INFO L276 IsEmpty]: Start isEmpty. Operand 3913 states and 5417 transitions. [2021-12-07 00:00:51,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2021-12-07 00:00:51,909 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:00:51,909 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:00:52,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-12-07 00:00:52,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:00:52,111 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_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)] === [2021-12-07 00:00:52,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:00:52,113 INFO L85 PathProgramCache]: Analyzing trace with hash -870529528, now seen corresponding path program 1 times [2021-12-07 00:00:52,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:00:52,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [952882781] [2021-12-07 00:00:52,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:00:52,129 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:00:52,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:00:52,131 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:00:52,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-12-07 00:01:04,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:05,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 5166 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-07 00:01:05,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:01:06,445 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 728 trivial. 0 not checked. [2021-12-07 00:01:06,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:01:06,445 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:01:06,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [952882781] [2021-12-07 00:01:06,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [952882781] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:01:06,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:01:06,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:01:06,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316932583] [2021-12-07 00:01:06,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:01:06,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:01:06,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:01:06,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:01:06,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:01:06,447 INFO L87 Difference]: Start difference. First operand 3913 states and 5417 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 2 states have call successors, (70), 3 states have call predecessors, (70), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-12-07 00:01:07,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:01:07,327 INFO L93 Difference]: Finished difference Result 3915 states and 5418 transitions. [2021-12-07 00:01:07,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:01:07,328 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 2 states have call successors, (70), 3 states have call predecessors, (70), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 449 [2021-12-07 00:01:07,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:01:07,337 INFO L225 Difference]: With dead ends: 3915 [2021-12-07 00:01:07,338 INFO L226 Difference]: Without dead ends: 3705 [2021-12-07 00:01:07,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 445 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:01:07,340 INFO L933 BasicCegarLoop]: 5254 mSDtfsCounter, 544 mSDsluCounter, 15189 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 20443 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:01:07,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [545 Valid, 20443 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-07 00:01:07,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3705 states. [2021-12-07 00:01:07,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3705 to 3705. [2021-12-07 00:01:07,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3705 states, 2395 states have (on average 1.2438413361169103) internal successors, (2979), 2481 states have internal predecessors, (2979), 1066 states have call successors, (1066), 242 states have call predecessors, (1066), 242 states have return successors, (1066), 1040 states have call predecessors, (1066), 1066 states have call successors, (1066) [2021-12-07 00:01:07,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3705 states to 3705 states and 5111 transitions. [2021-12-07 00:01:07,583 INFO L78 Accepts]: Start accepts. Automaton has 3705 states and 5111 transitions. Word has length 449 [2021-12-07 00:01:07,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:01:07,584 INFO L470 AbstractCegarLoop]: Abstraction has 3705 states and 5111 transitions. [2021-12-07 00:01:07,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 2 states have call successors, (70), 3 states have call predecessors, (70), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-12-07 00:01:07,584 INFO L276 IsEmpty]: Start isEmpty. Operand 3705 states and 5111 transitions. [2021-12-07 00:01:07,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2021-12-07 00:01:07,591 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:01:07,591 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 13, 13, 13, 11, 11, 11, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:01:07,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (29)] Ended with exit code 0 [2021-12-07 00:01:07,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:01:07,793 INFO L402 AbstractCegarLoop]: === Iteration 29 === 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)] === [2021-12-07 00:01:07,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:01:07,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1757656056, now seen corresponding path program 1 times [2021-12-07 00:01:07,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:01:07,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2114256075] [2021-12-07 00:01:07,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:01:07,813 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:01:07,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:01:07,815 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:01:07,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-12-07 00:01:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:17,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 6356 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-07 00:01:17,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:01:22,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1476 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 1256 trivial. 0 not checked. [2021-12-07 00:01:22,694 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:01:22,694 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:01:22,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2114256075] [2021-12-07 00:01:22,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2114256075] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:01:22,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:01:22,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:01:22,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621347720] [2021-12-07 00:01:22,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:01:22,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:01:22,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:01:22,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:01:22,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:01:22,697 INFO L87 Difference]: Start difference. First operand 3705 states and 5111 transitions. Second operand has 5 states, 5 states have (on average 56.8) internal successors, (284), 5 states have internal predecessors, (284), 2 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2021-12-07 00:01:24,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:01:24,127 INFO L93 Difference]: Finished difference Result 7614 states and 10539 transitions. [2021-12-07 00:01:24,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:01:24,128 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 56.8) internal successors, (284), 5 states have internal predecessors, (284), 2 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) Word has length 709 [2021-12-07 00:01:24,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:01:24,138 INFO L225 Difference]: With dead ends: 7614 [2021-12-07 00:01:24,138 INFO L226 Difference]: Without dead ends: 3990 [2021-12-07 00:01:24,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 712 GetRequests, 707 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:01:24,145 INFO L933 BasicCegarLoop]: 5219 mSDtfsCounter, 494 mSDsluCounter, 15100 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 20319 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-07 00:01:24,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [500 Valid, 20319 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-07 00:01:24,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3990 states. [2021-12-07 00:01:24,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3990 to 3708. [2021-12-07 00:01:24,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3708 states, 2398 states have (on average 1.243536280233528) internal successors, (2982), 2484 states have internal predecessors, (2982), 1066 states have call successors, (1066), 242 states have call predecessors, (1066), 242 states have return successors, (1066), 1040 states have call predecessors, (1066), 1066 states have call successors, (1066) [2021-12-07 00:01:24,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3708 states to 3708 states and 5114 transitions. [2021-12-07 00:01:24,385 INFO L78 Accepts]: Start accepts. Automaton has 3708 states and 5114 transitions. Word has length 709 [2021-12-07 00:01:24,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:01:24,385 INFO L470 AbstractCegarLoop]: Abstraction has 3708 states and 5114 transitions. [2021-12-07 00:01:24,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.8) internal successors, (284), 5 states have internal predecessors, (284), 2 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2021-12-07 00:01:24,385 INFO L276 IsEmpty]: Start isEmpty. Operand 3708 states and 5114 transitions. [2021-12-07 00:01:24,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 778 [2021-12-07 00:01:24,393 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:01:24,394 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 13, 13, 13, 13, 13, 12, 12, 12, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:01:24,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (30)] Ended with exit code 0 [2021-12-07 00:01:24,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:01:24,595 INFO L402 AbstractCegarLoop]: === Iteration 30 === 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)] === [2021-12-07 00:01:24,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:01:24,596 INFO L85 PathProgramCache]: Analyzing trace with hash -352718810, now seen corresponding path program 1 times [2021-12-07 00:01:24,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:01:24,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1601835420] [2021-12-07 00:01:24,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:01:24,606 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:01:24,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:01:24,607 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:01:24,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-12-07 00:01:35,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:35,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 6591 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-07 00:01:35,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:01:41,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1666 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 1362 trivial. 0 not checked. [2021-12-07 00:01:41,440 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:01:41,440 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:01:41,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1601835420] [2021-12-07 00:01:41,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1601835420] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:01:41,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:01:41,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 00:01:41,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006713082] [2021-12-07 00:01:41,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:01:41,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:01:41,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:01:41,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:01:41,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:01:41,443 INFO L87 Difference]: Start difference. First operand 3708 states and 5114 transitions. Second operand has 9 states, 9 states have (on average 33.666666666666664) internal successors, (303), 8 states have internal predecessors, (303), 2 states have call successors, (107), 2 states have call predecessors, (107), 3 states have return successors, (105), 3 states have call predecessors, (105), 2 states have call successors, (105) [2021-12-07 00:01:44,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:44,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:01:44,897 INFO L93 Difference]: Finished difference Result 7404 states and 10212 transitions. [2021-12-07 00:01:44,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:01:44,899 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 33.666666666666664) internal successors, (303), 8 states have internal predecessors, (303), 2 states have call successors, (107), 2 states have call predecessors, (107), 3 states have return successors, (105), 3 states have call predecessors, (105), 2 states have call successors, (105) Word has length 777 [2021-12-07 00:01:44,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:01:44,909 INFO L225 Difference]: With dead ends: 7404 [2021-12-07 00:01:44,909 INFO L226 Difference]: Without dead ends: 3777 [2021-12-07 00:01:44,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 782 GetRequests, 771 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:01:44,917 INFO L933 BasicCegarLoop]: 4984 mSDtfsCounter, 164 mSDsluCounter, 34687 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 39671 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:01:44,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 39671 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-07 00:01:44,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3777 states. [2021-12-07 00:01:45,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3777 to 3716. [2021-12-07 00:01:45,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3716 states, 2405 states have (on average 1.2428274428274428) internal successors, (2989), 2491 states have internal predecessors, (2989), 1066 states have call successors, (1066), 242 states have call predecessors, (1066), 243 states have return successors, (1067), 1041 states have call predecessors, (1067), 1066 states have call successors, (1067) [2021-12-07 00:01:45,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3716 states to 3716 states and 5122 transitions. [2021-12-07 00:01:45,158 INFO L78 Accepts]: Start accepts. Automaton has 3716 states and 5122 transitions. Word has length 777 [2021-12-07 00:01:45,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:01:45,159 INFO L470 AbstractCegarLoop]: Abstraction has 3716 states and 5122 transitions. [2021-12-07 00:01:45,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 33.666666666666664) internal successors, (303), 8 states have internal predecessors, (303), 2 states have call successors, (107), 2 states have call predecessors, (107), 3 states have return successors, (105), 3 states have call predecessors, (105), 2 states have call successors, (105) [2021-12-07 00:01:45,159 INFO L276 IsEmpty]: Start isEmpty. Operand 3716 states and 5122 transitions. [2021-12-07 00:01:45,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 799 [2021-12-07 00:01:45,167 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:01:45,167 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 14, 14, 14, 13, 13, 13, 13, 13, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:01:45,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (31)] Ended with exit code 0 [2021-12-07 00:01:45,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:01:45,369 INFO L402 AbstractCegarLoop]: === Iteration 31 === 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)] === [2021-12-07 00:01:45,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:01:45,369 INFO L85 PathProgramCache]: Analyzing trace with hash 2129386355, now seen corresponding path program 1 times [2021-12-07 00:01:45,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:01:45,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [268240712] [2021-12-07 00:01:45,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:01:45,379 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:01:45,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:01:45,380 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:01:45,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca09b21-976c-47b4-abd8-079bb4b3bed7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process