./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 18:32:33,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 18:32:33,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 18:32:33,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 18:32:33,210 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 18:32:33,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 18:32:33,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 18:32:33,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 18:32:33,217 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 18:32:33,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 18:32:33,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 18:32:33,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 18:32:33,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 18:32:33,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 18:32:33,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 18:32:33,231 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 18:32:33,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 18:32:33,233 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 18:32:33,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 18:32:33,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 18:32:33,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 18:32:33,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 18:32:33,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 18:32:33,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 18:32:33,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 18:32:33,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 18:32:33,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 18:32:33,251 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 18:32:33,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 18:32:33,252 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 18:32:33,252 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 18:32:33,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 18:32:33,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 18:32:33,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 18:32:33,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 18:32:33,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 18:32:33,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 18:32:33,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 18:32:33,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 18:32:33,257 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 18:32:33,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 18:32:33,259 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 18:32:33,275 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 18:32:33,277 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 18:32:33,277 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 18:32:33,277 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 18:32:33,278 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 18:32:33,278 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 18:32:33,279 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 18:32:33,279 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 18:32:33,279 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 18:32:33,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 18:32:33,280 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 18:32:33,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 18:32:33,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 18:32:33,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 18:32:33,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 18:32:33,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 18:32:33,281 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 18:32:33,281 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 18:32:33,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 18:32:33,281 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 18:32:33,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 18:32:33,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:32:33,282 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 18:32:33,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 18:32:33,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 18:32:33,282 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 18:32:33,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 18:32:33,282 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 18:32:33,283 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 18:32:33,283 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 18:32:33,283 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 18:32:33,283 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 [2021-12-14 18:32:33,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 18:32:33,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 18:32:33,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 18:32:33,483 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 18:32:33,483 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 18:32:33,484 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2021-12-14 18:32:33,546 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caf3394f1/a82b61d9a123464cb985f33c4654d640/FLAGf8c30c0be [2021-12-14 18:32:34,229 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 18:32:34,230 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2021-12-14 18:32:34,263 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caf3394f1/a82b61d9a123464cb985f33c4654d640/FLAGf8c30c0be [2021-12-14 18:32:34,334 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caf3394f1/a82b61d9a123464cb985f33c4654d640 [2021-12-14 18:32:34,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 18:32:34,337 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 18:32:34,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 18:32:34,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 18:32:34,340 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 18:32:34,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:32:34" (1/1) ... [2021-12-14 18:32:34,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c5a864c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:32:34, skipping insertion in model container [2021-12-14 18:32:34,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:32:34" (1/1) ... [2021-12-14 18:32:34,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 18:32:34,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 18:32:35,824 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2021-12-14 18:32:35,829 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2021-12-14 18:32:35,830 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2021-12-14 18:32:35,830 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2021-12-14 18:32:35,858 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:32:35,925 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 18:32:36,171 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2021-12-14 18:32:36,172 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2021-12-14 18:32:36,172 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2021-12-14 18:32:36,173 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2021-12-14 18:32:36,180 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:32:36,291 INFO L208 MainTranslator]: Completed translation [2021-12-14 18:32:36,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:32:36 WrapperNode [2021-12-14 18:32:36,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 18:32:36,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 18:32:36,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 18:32:36,293 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 18:32:36,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:32:36" (1/1) ... [2021-12-14 18:32:36,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:32:36" (1/1) ... [2021-12-14 18:32:36,508 INFO L137 Inliner]: procedures = 357, calls = 1559, calls flagged for inlining = 197, calls inlined = 186, statements flattened = 4089 [2021-12-14 18:32:36,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 18:32:36,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 18:32:36,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 18:32:36,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 18:32:36,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:32:36" (1/1) ... [2021-12-14 18:32:36,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:32:36" (1/1) ... [2021-12-14 18:32:36,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:32:36" (1/1) ... [2021-12-14 18:32:36,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:32:36" (1/1) ... [2021-12-14 18:32:36,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:32:36" (1/1) ... [2021-12-14 18:32:36,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:32:36" (1/1) ... [2021-12-14 18:32:36,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:32:36" (1/1) ... [2021-12-14 18:32:36,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 18:32:36,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 18:32:36,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 18:32:36,736 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 18:32:36,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:32:36" (1/1) ... [2021-12-14 18:32:36,741 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:32:36,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:32:36,772 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 18:32:36,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 18:32:36,799 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2021-12-14 18:32:36,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2021-12-14 18:32:36,799 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-12-14 18:32:36,799 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-12-14 18:32:36,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 18:32:36,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 18:32:36,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 18:32:36,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 18:32:36,800 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-14 18:32:36,800 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-14 18:32:36,800 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2021-12-14 18:32:36,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2021-12-14 18:32:36,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 18:32:36,801 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 18:32:36,801 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-14 18:32:36,801 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-14 18:32:36,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 18:32:36,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 18:32:36,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mii_mutex_of_ipg_nic_private [2021-12-14 18:32:36,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mii_mutex_of_ipg_nic_private [2021-12-14 18:32:36,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-14 18:32:36,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-14 18:32:36,802 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-14 18:32:36,802 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-14 18:32:36,802 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2021-12-14 18:32:36,802 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2021-12-14 18:32:36,802 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-14 18:32:36,803 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-14 18:32:36,803 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-14 18:32:36,803 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-14 18:32:36,803 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-12-14 18:32:36,803 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-12-14 18:32:36,803 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2021-12-14 18:32:36,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2021-12-14 18:32:36,803 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-12-14 18:32:36,803 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-12-14 18:32:36,804 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-14 18:32:36,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-14 18:32:36,804 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-14 18:32:36,804 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-14 18:32:36,804 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-14 18:32:36,804 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-14 18:32:36,804 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 18:32:36,805 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 18:32:36,805 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2021-12-14 18:32:36,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2021-12-14 18:32:36,805 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2021-12-14 18:32:36,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2021-12-14 18:32:36,805 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2021-12-14 18:32:36,806 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2021-12-14 18:32:36,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 18:32:36,807 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-14 18:32:36,807 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-14 18:32:36,807 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2021-12-14 18:32:36,807 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2021-12-14 18:32:36,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 18:32:36,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-14 18:32:36,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-14 18:32:36,808 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-14 18:32:36,808 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-14 18:32:36,808 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-12-14 18:32:36,808 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-12-14 18:32:36,809 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-14 18:32:36,809 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-14 18:32:36,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-14 18:32:36,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-14 18:32:36,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-12-14 18:32:36,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-12-14 18:32:36,810 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2021-12-14 18:32:36,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2021-12-14 18:32:36,810 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-14 18:32:36,811 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-14 18:32:36,811 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2021-12-14 18:32:36,811 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2021-12-14 18:32:36,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 18:32:36,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 18:32:36,811 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-14 18:32:36,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-14 18:32:36,811 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2021-12-14 18:32:36,812 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2021-12-14 18:32:36,812 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-14 18:32:36,812 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-14 18:32:36,812 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2021-12-14 18:32:36,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2021-12-14 18:32:36,813 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-14 18:32:36,813 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-14 18:32:36,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-14 18:32:36,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-14 18:32:36,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-14 18:32:36,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-14 18:32:36,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 18:32:36,814 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-14 18:32:36,814 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-14 18:32:36,815 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-14 18:32:36,815 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-14 18:32:36,815 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2021-12-14 18:32:36,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2021-12-14 18:32:36,815 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2021-12-14 18:32:36,815 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2021-12-14 18:32:36,815 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2021-12-14 18:32:36,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2021-12-14 18:32:36,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 18:32:36,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-14 18:32:36,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-14 18:32:36,816 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-14 18:32:36,816 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-14 18:32:36,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 18:32:36,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-12-14 18:32:36,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-12-14 18:32:36,817 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-14 18:32:36,817 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-14 18:32:36,818 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-14 18:32:36,818 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-14 18:32:36,821 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-14 18:32:36,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-14 18:32:36,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 18:32:36,821 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 18:32:36,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-14 18:32:36,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-14 18:32:36,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-14 18:32:36,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-14 18:32:36,823 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-14 18:32:36,828 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-14 18:32:36,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-14 18:32:36,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-14 18:32:36,829 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-12-14 18:32:36,829 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-12-14 18:32:36,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-12-14 18:32:36,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-12-14 18:32:36,829 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-14 18:32:36,829 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-14 18:32:36,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 18:32:36,830 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-14 18:32:36,830 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-14 18:32:36,830 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-12-14 18:32:36,830 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-12-14 18:32:36,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 18:32:36,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 18:32:36,830 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2021-12-14 18:32:36,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2021-12-14 18:32:36,830 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2021-12-14 18:32:36,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2021-12-14 18:32:36,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mii_mutex_of_ipg_nic_private [2021-12-14 18:32:36,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mii_mutex_of_ipg_nic_private [2021-12-14 18:32:36,831 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2021-12-14 18:32:36,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2021-12-14 18:32:36,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 18:32:36,831 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2021-12-14 18:32:36,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2021-12-14 18:32:36,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-14 18:32:36,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-14 18:32:36,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-14 18:32:36,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-14 18:32:36,832 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2021-12-14 18:32:36,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2021-12-14 18:32:36,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 18:32:36,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-14 18:32:36,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-14 18:32:36,832 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-14 18:32:36,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-14 18:32:36,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 18:32:36,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2021-12-14 18:32:36,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2021-12-14 18:32:36,833 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-12-14 18:32:36,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-12-14 18:32:36,833 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:32:36,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:32:36,833 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2021-12-14 18:32:36,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2021-12-14 18:32:36,834 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-14 18:32:36,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-14 18:32:36,834 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-12-14 18:32:36,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-12-14 18:32:36,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-14 18:32:36,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-14 18:32:36,834 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2021-12-14 18:32:36,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2021-12-14 18:32:36,835 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-14 18:32:36,835 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-14 18:32:36,835 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 18:32:36,835 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 18:32:36,835 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-14 18:32:36,835 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-14 18:32:36,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-14 18:32:36,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-14 18:32:36,835 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2021-12-14 18:32:36,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2021-12-14 18:32:36,836 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2021-12-14 18:32:36,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2021-12-14 18:32:36,836 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-14 18:32:36,836 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-14 18:32:36,836 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-12-14 18:32:36,836 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-12-14 18:32:36,836 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-14 18:32:36,836 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-14 18:32:36,837 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-12-14 18:32:36,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 18:32:36,837 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2021-12-14 18:32:36,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2021-12-14 18:32:36,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-14 18:32:36,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-14 18:32:36,837 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2021-12-14 18:32:36,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2021-12-14 18:32:36,837 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-14 18:32:36,838 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-14 18:32:36,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 18:32:36,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 18:32:37,554 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 18:32:37,556 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 18:32:38,073 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 18:32:39,782 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-14 18:32:39,809 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 18:32:39,819 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 18:32:39,820 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-14 18:32:39,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:32:39 BoogieIcfgContainer [2021-12-14 18:32:39,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 18:32:39,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 18:32:39,823 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 18:32:39,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 18:32:39,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:32:34" (1/3) ... [2021-12-14 18:32:39,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16f3ddcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:32:39, skipping insertion in model container [2021-12-14 18:32:39,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:32:36" (2/3) ... [2021-12-14 18:32:39,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16f3ddcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:32:39, skipping insertion in model container [2021-12-14 18:32:39,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:32:39" (3/3) ... [2021-12-14 18:32:39,827 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2021-12-14 18:32:39,831 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 18:32:39,831 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-14 18:32:39,862 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 18:32:39,867 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 [2021-12-14 18:32:39,867 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-14 18:32:39,897 INFO L276 IsEmpty]: Start isEmpty. Operand has 1656 states, 1118 states have (on average 1.2531305903398926) internal successors, (1401), 1153 states have internal predecessors, (1401), 443 states have call successors, (443), 95 states have call predecessors, (443), 94 states have return successors, (437), 434 states have call predecessors, (437), 437 states have call successors, (437) [2021-12-14 18:32:39,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-14 18:32:39,906 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:32:39,907 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:32:39,907 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:32:39,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:32:39,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1151449155, now seen corresponding path program 1 times [2021-12-14 18:32:39,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:32:39,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132223187] [2021-12-14 18:32:39,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:32:39,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:32:40,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:40,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:32:40,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:40,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:40,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:40,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:32:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:40,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:40,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:32:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:40,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:40,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:32:40,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:40,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:40,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:32:40,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:40,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:40,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:40,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:32:40,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:40,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:40,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:32:40,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:40,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:40,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:40,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:32:40,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:40,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:40,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 18:32:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:40,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 18:32:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:40,436 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-12-14 18:32:40,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:32:40,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132223187] [2021-12-14 18:32:40,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132223187] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:32:40,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:32:40,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:32:40,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015773045] [2021-12-14 18:32:40,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:32:40,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:32:40,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:32:40,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:32:40,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:32:40,470 INFO L87 Difference]: Start difference. First operand has 1656 states, 1118 states have (on average 1.2531305903398926) internal successors, (1401), 1153 states have internal predecessors, (1401), 443 states have call successors, (443), 95 states have call predecessors, (443), 94 states have return successors, (437), 434 states have call predecessors, (437), 437 states have call successors, (437) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-14 18:32:43,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:32:43,344 INFO L93 Difference]: Finished difference Result 4964 states and 7029 transitions. [2021-12-14 18:32:43,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:32:43,346 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 116 [2021-12-14 18:32:43,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:32:43,383 INFO L225 Difference]: With dead ends: 4964 [2021-12-14 18:32:43,383 INFO L226 Difference]: Without dead ends: 3319 [2021-12-14 18:32:43,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:32:43,396 INFO L933 BasicCegarLoop]: 2364 mSDtfsCounter, 2938 mSDsluCounter, 2352 mSDsCounter, 0 mSdLazyCounter, 1616 mSolverCounterSat, 1385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3330 SdHoareTripleChecker+Valid, 4716 SdHoareTripleChecker+Invalid, 3001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1385 IncrementalHoareTripleChecker+Valid, 1616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-14 18:32:43,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3330 Valid, 4716 Invalid, 3001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1385 Valid, 1616 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-14 18:32:43,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3319 states. [2021-12-14 18:32:43,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3319 to 3179. [2021-12-14 18:32:43,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3179 states, 2154 states have (on average 1.2465181058495822) internal successors, (2685), 2221 states have internal predecessors, (2685), 838 states have call successors, (838), 185 states have call predecessors, (838), 184 states have return successors, (834), 828 states have call predecessors, (834), 834 states have call successors, (834) [2021-12-14 18:32:43,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3179 states to 3179 states and 4357 transitions. [2021-12-14 18:32:43,553 INFO L78 Accepts]: Start accepts. Automaton has 3179 states and 4357 transitions. Word has length 116 [2021-12-14 18:32:43,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:32:43,555 INFO L470 AbstractCegarLoop]: Abstraction has 3179 states and 4357 transitions. [2021-12-14 18:32:43,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-14 18:32:43,555 INFO L276 IsEmpty]: Start isEmpty. Operand 3179 states and 4357 transitions. [2021-12-14 18:32:43,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-14 18:32:43,560 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:32:43,561 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:32:43,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 18:32:43,561 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:32:43,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:32:43,562 INFO L85 PathProgramCache]: Analyzing trace with hash -341130604, now seen corresponding path program 1 times [2021-12-14 18:32:43,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:32:43,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823956911] [2021-12-14 18:32:43,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:32:43,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:32:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:43,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:32:43,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:43,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:43,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:43,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:32:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:43,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:43,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:43,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:32:43,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:43,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:43,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:43,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:32:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:43,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:43,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:43,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:32:43,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:43,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:43,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:43,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:32:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:43,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:43,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:43,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:32:43,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:43,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:43,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:32:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:43,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:43,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 18:32:43,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:43,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 18:32:43,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:43,751 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-12-14 18:32:43,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:32:43,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823956911] [2021-12-14 18:32:43,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823956911] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:32:43,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:32:43,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:32:43,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033282178] [2021-12-14 18:32:43,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:32:43,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:32:43,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:32:43,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:32:43,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:32:43,758 INFO L87 Difference]: Start difference. First operand 3179 states and 4357 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-14 18:32:46,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:32:46,730 INFO L93 Difference]: Finished difference Result 9465 states and 13033 transitions. [2021-12-14 18:32:46,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:32:46,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 117 [2021-12-14 18:32:46,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:32:46,772 INFO L225 Difference]: With dead ends: 9465 [2021-12-14 18:32:46,773 INFO L226 Difference]: Without dead ends: 6307 [2021-12-14 18:32:46,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:32:46,788 INFO L933 BasicCegarLoop]: 2340 mSDtfsCounter, 2761 mSDsluCounter, 2318 mSDsCounter, 0 mSdLazyCounter, 1605 mSolverCounterSat, 1378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3135 SdHoareTripleChecker+Valid, 4658 SdHoareTripleChecker+Invalid, 2983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1378 IncrementalHoareTripleChecker+Valid, 1605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-14 18:32:46,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3135 Valid, 4658 Invalid, 2983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1378 Valid, 1605 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-14 18:32:46,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6307 states. [2021-12-14 18:32:46,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6307 to 6014. [2021-12-14 18:32:46,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6014 states, 4051 states have (on average 1.2451246605776352) internal successors, (5044), 4181 states have internal predecessors, (5044), 1597 states have call successors, (1597), 366 states have call predecessors, (1597), 363 states have return successors, (1595), 1572 states have call predecessors, (1595), 1593 states have call successors, (1595) [2021-12-14 18:32:47,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6014 states to 6014 states and 8236 transitions. [2021-12-14 18:32:47,005 INFO L78 Accepts]: Start accepts. Automaton has 6014 states and 8236 transitions. Word has length 117 [2021-12-14 18:32:47,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:32:47,006 INFO L470 AbstractCegarLoop]: Abstraction has 6014 states and 8236 transitions. [2021-12-14 18:32:47,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-14 18:32:47,006 INFO L276 IsEmpty]: Start isEmpty. Operand 6014 states and 8236 transitions. [2021-12-14 18:32:47,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-14 18:32:47,008 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:32:47,008 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:32:47,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 18:32:47,009 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:32:47,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:32:47,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1724366179, now seen corresponding path program 1 times [2021-12-14 18:32:47,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:32:47,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007612418] [2021-12-14 18:32:47,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:32:47,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:32:47,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:47,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:32:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:47,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:47,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:47,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:32:47,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:47,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:47,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:32:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:47,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:47,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:47,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:32:47,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:47,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:47,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:47,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:32:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:47,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:47,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:32:47,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:47,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:47,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:32:47,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:47,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:47,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:47,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:32:47,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:47,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:47,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 18:32:47,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:47,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-14 18:32:47,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:47,313 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-12-14 18:32:47,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:32:47,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007612418] [2021-12-14 18:32:47,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007612418] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:32:47,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:32:47,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:32:47,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443690485] [2021-12-14 18:32:47,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:32:47,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:32:47,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:32:47,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:32:47,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:32:47,315 INFO L87 Difference]: Start difference. First operand 6014 states and 8236 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-14 18:32:49,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:32:49,716 INFO L93 Difference]: Finished difference Result 12015 states and 16538 transitions. [2021-12-14 18:32:49,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:32:49,717 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 128 [2021-12-14 18:32:49,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:32:49,749 INFO L225 Difference]: With dead ends: 12015 [2021-12-14 18:32:49,749 INFO L226 Difference]: Without dead ends: 6022 [2021-12-14 18:32:49,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:32:49,775 INFO L933 BasicCegarLoop]: 2794 mSDtfsCounter, 2147 mSDsluCounter, 2489 mSDsCounter, 0 mSdLazyCounter, 1549 mSolverCounterSat, 1069 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2468 SdHoareTripleChecker+Valid, 5283 SdHoareTripleChecker+Invalid, 2618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1069 IncrementalHoareTripleChecker+Valid, 1549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-14 18:32:49,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2468 Valid, 5283 Invalid, 2618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1069 Valid, 1549 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-14 18:32:49,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6022 states. [2021-12-14 18:32:50,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6022 to 5756. [2021-12-14 18:32:50,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5756 states, 3909 states have (on average 1.2491685853159376) internal successors, (4883), 4035 states have internal predecessors, (4883), 1495 states have call successors, (1495), 353 states have call predecessors, (1495), 349 states have return successors, (1492), 1469 states have call predecessors, (1492), 1491 states have call successors, (1492) [2021-12-14 18:32:50,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5756 states to 5756 states and 7870 transitions. [2021-12-14 18:32:50,043 INFO L78 Accepts]: Start accepts. Automaton has 5756 states and 7870 transitions. Word has length 128 [2021-12-14 18:32:50,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:32:50,043 INFO L470 AbstractCegarLoop]: Abstraction has 5756 states and 7870 transitions. [2021-12-14 18:32:50,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-14 18:32:50,044 INFO L276 IsEmpty]: Start isEmpty. Operand 5756 states and 7870 transitions. [2021-12-14 18:32:50,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-12-14 18:32:50,048 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:32:50,049 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:32:50,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 18:32:50,049 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:32:50,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:32:50,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1356770296, now seen corresponding path program 1 times [2021-12-14 18:32:50,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:32:50,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455997399] [2021-12-14 18:32:50,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:32:50,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:32:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:50,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:32:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:50,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:50,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:32:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:50,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:50,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:32:50,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:50,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:50,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:32:50,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:50,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:50,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:32:50,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:50,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:50,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:32:50,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:50,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:50,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:50,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:32:50,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:50,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:50,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:32:50,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:50,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:50,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 18:32:50,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:50,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 18:32:50,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:50,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:32:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:50,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 18:32:50,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:50,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 18:32:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:50,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:50,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:50,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 18:32:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:50,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-14 18:32:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:50,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:32:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:50,345 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2021-12-14 18:32:50,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:32:50,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455997399] [2021-12-14 18:32:50,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455997399] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:32:50,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:32:50,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:32:50,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371895036] [2021-12-14 18:32:50,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:32:50,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:32:50,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:32:50,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:32:50,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:32:50,349 INFO L87 Difference]: Start difference. First operand 5756 states and 7870 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 18:32:52,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:32:52,376 INFO L93 Difference]: Finished difference Result 6009 states and 8269 transitions. [2021-12-14 18:32:52,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:32:52,376 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 172 [2021-12-14 18:32:52,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:32:52,398 INFO L225 Difference]: With dead ends: 6009 [2021-12-14 18:32:52,399 INFO L226 Difference]: Without dead ends: 6007 [2021-12-14 18:32:52,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-14 18:32:52,401 INFO L933 BasicCegarLoop]: 2079 mSDtfsCounter, 2351 mSDsluCounter, 3916 mSDsCounter, 0 mSdLazyCounter, 1879 mSolverCounterSat, 962 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2586 SdHoareTripleChecker+Valid, 5995 SdHoareTripleChecker+Invalid, 2841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 962 IncrementalHoareTripleChecker+Valid, 1879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-14 18:32:52,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2586 Valid, 5995 Invalid, 2841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [962 Valid, 1879 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-14 18:32:52,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6007 states. [2021-12-14 18:32:52,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6007 to 5760. [2021-12-14 18:32:52,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5760 states, 3912 states have (on average 1.2489775051124745) internal successors, (4886), 4038 states have internal predecessors, (4886), 1495 states have call successors, (1495), 354 states have call predecessors, (1495), 350 states have return successors, (1492), 1469 states have call predecessors, (1492), 1491 states have call successors, (1492) [2021-12-14 18:32:52,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5760 states to 5760 states and 7873 transitions. [2021-12-14 18:32:52,624 INFO L78 Accepts]: Start accepts. Automaton has 5760 states and 7873 transitions. Word has length 172 [2021-12-14 18:32:52,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:32:52,625 INFO L470 AbstractCegarLoop]: Abstraction has 5760 states and 7873 transitions. [2021-12-14 18:32:52,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 18:32:52,625 INFO L276 IsEmpty]: Start isEmpty. Operand 5760 states and 7873 transitions. [2021-12-14 18:32:52,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-14 18:32:52,628 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:32:52,628 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:32:52,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 18:32:52,629 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:32:52,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:32:52,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1426342298, now seen corresponding path program 1 times [2021-12-14 18:32:52,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:32:52,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698021895] [2021-12-14 18:32:52,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:32:52,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:32:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:32:52,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:52,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:32:52,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:32:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:52,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:32:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:52,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:32:52,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:52,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:32:52,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:52,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:32:52,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:52,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:32:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 18:32:52,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 18:32:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:32:52,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 18:32:52,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 18:32:52,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:52,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 18:32:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-14 18:32:52,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:32:52,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-14 18:32:52,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:52,852 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2021-12-14 18:32:52,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:32:52,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698021895] [2021-12-14 18:32:52,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698021895] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:32:52,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:32:52,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:32:52,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686943941] [2021-12-14 18:32:52,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:32:52,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:32:52,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:32:52,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:32:52,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:32:52,854 INFO L87 Difference]: Start difference. First operand 5760 states and 7873 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (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) [2021-12-14 18:32:54,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:32:54,846 INFO L93 Difference]: Finished difference Result 6013 states and 8272 transitions. [2021-12-14 18:32:54,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:32:54,859 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (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 177 [2021-12-14 18:32:54,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:32:54,894 INFO L225 Difference]: With dead ends: 6013 [2021-12-14 18:32:54,895 INFO L226 Difference]: Without dead ends: 6011 [2021-12-14 18:32:54,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-14 18:32:54,900 INFO L933 BasicCegarLoop]: 2076 mSDtfsCounter, 2349 mSDsluCounter, 3904 mSDsCounter, 0 mSdLazyCounter, 1876 mSolverCounterSat, 962 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2584 SdHoareTripleChecker+Valid, 5980 SdHoareTripleChecker+Invalid, 2838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 962 IncrementalHoareTripleChecker+Valid, 1876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-14 18:32:54,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2584 Valid, 5980 Invalid, 2838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [962 Valid, 1876 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-14 18:32:54,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6011 states. [2021-12-14 18:32:55,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6011 to 5764. [2021-12-14 18:32:55,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5764 states, 3915 states have (on average 1.248786717752235) internal successors, (4889), 4041 states have internal predecessors, (4889), 1495 states have call successors, (1495), 355 states have call predecessors, (1495), 351 states have return successors, (1492), 1469 states have call predecessors, (1492), 1491 states have call successors, (1492) [2021-12-14 18:32:55,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5764 states to 5764 states and 7876 transitions. [2021-12-14 18:32:55,103 INFO L78 Accepts]: Start accepts. Automaton has 5764 states and 7876 transitions. Word has length 177 [2021-12-14 18:32:55,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:32:55,104 INFO L470 AbstractCegarLoop]: Abstraction has 5764 states and 7876 transitions. [2021-12-14 18:32:55,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (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) [2021-12-14 18:32:55,104 INFO L276 IsEmpty]: Start isEmpty. Operand 5764 states and 7876 transitions. [2021-12-14 18:32:55,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-12-14 18:32:55,110 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:32:55,110 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:32:55,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 18:32:55,111 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:32:55,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:32:55,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1986513272, now seen corresponding path program 1 times [2021-12-14 18:32:55,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:32:55,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780319355] [2021-12-14 18:32:55,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:32:55,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:32:55,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:32:55,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:55,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:32:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:55,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:32:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:32:55,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:55,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:32:55,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:32:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:32:55,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:32:55,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:55,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 18:32:55,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 18:32:55,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:32:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 18:32:55,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 18:32:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 18:32:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-14 18:32:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:32:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-14 18:32:55,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-14 18:32:55,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:55,396 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2021-12-14 18:32:55,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:32:55,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780319355] [2021-12-14 18:32:55,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780319355] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:32:55,396 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:32:55,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:32:55,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668243870] [2021-12-14 18:32:55,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:32:55,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:32:55,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:32:55,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:32:55,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:32:55,398 INFO L87 Difference]: Start difference. First operand 5764 states and 7876 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-14 18:32:57,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:32:57,444 INFO L93 Difference]: Finished difference Result 6017 states and 8275 transitions. [2021-12-14 18:32:57,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-14 18:32:57,444 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 182 [2021-12-14 18:32:57,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:32:57,464 INFO L225 Difference]: With dead ends: 6017 [2021-12-14 18:32:57,465 INFO L226 Difference]: Without dead ends: 6013 [2021-12-14 18:32:57,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-14 18:32:57,468 INFO L933 BasicCegarLoop]: 2083 mSDtfsCounter, 2322 mSDsluCounter, 3934 mSDsCounter, 0 mSdLazyCounter, 1891 mSolverCounterSat, 961 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2549 SdHoareTripleChecker+Valid, 6017 SdHoareTripleChecker+Invalid, 2852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 961 IncrementalHoareTripleChecker+Valid, 1891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-14 18:32:57,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2549 Valid, 6017 Invalid, 2852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [961 Valid, 1891 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-14 18:32:57,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6013 states. [2021-12-14 18:32:57,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6013 to 5766. [2021-12-14 18:32:57,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5766 states, 3917 states have (on average 1.2484043911156497) internal successors, (4890), 4042 states have internal predecessors, (4890), 1495 states have call successors, (1495), 356 states have call predecessors, (1495), 351 states have return successors, (1492), 1469 states have call predecessors, (1492), 1491 states have call successors, (1492) [2021-12-14 18:32:57,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5766 states to 5766 states and 7877 transitions. [2021-12-14 18:32:57,664 INFO L78 Accepts]: Start accepts. Automaton has 5766 states and 7877 transitions. Word has length 182 [2021-12-14 18:32:57,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:32:57,664 INFO L470 AbstractCegarLoop]: Abstraction has 5766 states and 7877 transitions. [2021-12-14 18:32:57,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-14 18:32:57,665 INFO L276 IsEmpty]: Start isEmpty. Operand 5766 states and 7877 transitions. [2021-12-14 18:32:57,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-12-14 18:32:57,668 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:32:57,668 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:32:57,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 18:32:57,669 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:32:57,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:32:57,669 INFO L85 PathProgramCache]: Analyzing trace with hash -424312879, now seen corresponding path program 1 times [2021-12-14 18:32:57,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:32:57,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712133474] [2021-12-14 18:32:57,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:32:57,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:32:57,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:32:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:32:57,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:57,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:32:57,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:57,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:32:57,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:32:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:32:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:57,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:32:57,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:57,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:32:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:57,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 18:32:57,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 18:32:57,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:32:57,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 18:32:57,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 18:32:57,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:32:57,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 18:32:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-14 18:32:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-14 18:32:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:32:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:32:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-14 18:32:57,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-14 18:32:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-14 18:32:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:32:57,847 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2021-12-14 18:32:57,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:32:57,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712133474] [2021-12-14 18:32:57,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712133474] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:32:57,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:32:57,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:32:57,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934167189] [2021-12-14 18:32:57,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:32:57,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:32:57,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:32:57,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:32:57,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:32:57,849 INFO L87 Difference]: Start difference. First operand 5766 states and 7877 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-14 18:33:03,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:33:04,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:33:04,053 INFO L93 Difference]: Finished difference Result 16058 states and 22045 transitions. [2021-12-14 18:33:04,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-14 18:33:04,053 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 198 [2021-12-14 18:33:04,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:33:04,089 INFO L225 Difference]: With dead ends: 16058 [2021-12-14 18:33:04,089 INFO L226 Difference]: Without dead ends: 11026 [2021-12-14 18:33:04,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 18:33:04,110 INFO L933 BasicCegarLoop]: 2984 mSDtfsCounter, 3732 mSDsluCounter, 3061 mSDsCounter, 0 mSdLazyCounter, 2743 mSolverCounterSat, 2672 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3992 SdHoareTripleChecker+Valid, 6045 SdHoareTripleChecker+Invalid, 5415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2672 IncrementalHoareTripleChecker+Valid, 2743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-12-14 18:33:04,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3992 Valid, 6045 Invalid, 5415 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2672 Valid, 2743 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2021-12-14 18:33:04,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11026 states. [2021-12-14 18:33:04,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11026 to 10533. [2021-12-14 18:33:04,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10533 states, 7165 states have (on average 1.2482903000697836) internal successors, (8944), 7386 states have internal predecessors, (8944), 2723 states have call successors, (2723), 648 states have call predecessors, (2723), 642 states have return successors, (2721), 2688 states have call predecessors, (2721), 2719 states have call successors, (2721) [2021-12-14 18:33:04,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10533 states to 10533 states and 14388 transitions. [2021-12-14 18:33:04,541 INFO L78 Accepts]: Start accepts. Automaton has 10533 states and 14388 transitions. Word has length 198 [2021-12-14 18:33:04,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:33:04,543 INFO L470 AbstractCegarLoop]: Abstraction has 10533 states and 14388 transitions. [2021-12-14 18:33:04,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-14 18:33:04,543 INFO L276 IsEmpty]: Start isEmpty. Operand 10533 states and 14388 transitions. [2021-12-14 18:33:04,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-12-14 18:33:04,547 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:33:04,547 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:33:04,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 18:33:04,548 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:33:04,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:33:04,549 INFO L85 PathProgramCache]: Analyzing trace with hash -770571854, now seen corresponding path program 1 times [2021-12-14 18:33:04,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:33:04,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744491530] [2021-12-14 18:33:04,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:33:04,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:33:04,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:33:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:33:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:04,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:33:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:33:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:33:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:33:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:04,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:33:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:33:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 18:33:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 18:33:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:33:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 18:33:04,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 18:33:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 18:33:04,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-14 18:33:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-14 18:33:04,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-14 18:33:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:33:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-14 18:33:04,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-14 18:33:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-14 18:33:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:04,784 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2021-12-14 18:33:04,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:33:04,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744491530] [2021-12-14 18:33:04,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744491530] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:33:04,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:33:04,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:33:04,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642190152] [2021-12-14 18:33:04,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:33:04,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:33:04,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:33:04,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:33:04,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:33:04,786 INFO L87 Difference]: Start difference. First operand 10533 states and 14388 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-14 18:33:11,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:33:11,497 INFO L93 Difference]: Finished difference Result 25790 states and 35387 transitions. [2021-12-14 18:33:11,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-14 18:33:11,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 199 [2021-12-14 18:33:11,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:33:11,643 INFO L225 Difference]: With dead ends: 25790 [2021-12-14 18:33:11,643 INFO L226 Difference]: Without dead ends: 15991 [2021-12-14 18:33:11,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 18:33:11,723 INFO L933 BasicCegarLoop]: 3872 mSDtfsCounter, 2945 mSDsluCounter, 3527 mSDsCounter, 0 mSdLazyCounter, 2920 mSolverCounterSat, 2192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3204 SdHoareTripleChecker+Valid, 7399 SdHoareTripleChecker+Invalid, 5112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2192 IncrementalHoareTripleChecker+Valid, 2920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-12-14 18:33:11,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3204 Valid, 7399 Invalid, 5112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2192 Valid, 2920 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2021-12-14 18:33:11,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15991 states. [2021-12-14 18:33:12,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15991 to 15296. [2021-12-14 18:33:12,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15296 states, 10409 states have (on average 1.2483427802862908) internal successors, (12994), 10726 states have internal predecessors, (12994), 3951 states have call successors, (3951), 940 states have call predecessors, (3951), 933 states have return successors, (3950), 3907 states have call predecessors, (3950), 3947 states have call successors, (3950) [2021-12-14 18:33:12,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15296 states to 15296 states and 20895 transitions. [2021-12-14 18:33:12,601 INFO L78 Accepts]: Start accepts. Automaton has 15296 states and 20895 transitions. Word has length 199 [2021-12-14 18:33:12,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:33:12,602 INFO L470 AbstractCegarLoop]: Abstraction has 15296 states and 20895 transitions. [2021-12-14 18:33:12,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-14 18:33:12,602 INFO L276 IsEmpty]: Start isEmpty. Operand 15296 states and 20895 transitions. [2021-12-14 18:33:12,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-12-14 18:33:12,611 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:33:12,611 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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] [2021-12-14 18:33:12,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-14 18:33:12,612 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:33:12,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:33:12,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1814600550, now seen corresponding path program 1 times [2021-12-14 18:33:12,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:33:12,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514260014] [2021-12-14 18:33:12,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:33:12,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:33:12,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:33:12,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:33:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:12,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:33:12,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:33:12,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:33:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:33:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:33:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:33:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 18:33:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 18:33:12,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:33:12,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 18:33:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 18:33:12,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:12,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 18:33:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-14 18:33:12,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:33:12,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-14 18:33:12,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-14 18:33:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-14 18:33:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:12,830 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2021-12-14 18:33:12,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:33:12,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514260014] [2021-12-14 18:33:12,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514260014] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:33:12,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:33:12,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:33:12,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73764771] [2021-12-14 18:33:12,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:33:12,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:33:12,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:33:12,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:33:12,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:33:12,833 INFO L87 Difference]: Start difference. First operand 15296 states and 20895 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (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) [2021-12-14 18:33:14,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:33:14,991 INFO L93 Difference]: Finished difference Result 15987 states and 21983 transitions. [2021-12-14 18:33:14,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:33:14,999 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (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 187 [2021-12-14 18:33:14,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:33:15,101 INFO L225 Difference]: With dead ends: 15987 [2021-12-14 18:33:15,115 INFO L226 Difference]: Without dead ends: 15147 [2021-12-14 18:33:15,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-14 18:33:15,140 INFO L933 BasicCegarLoop]: 2073 mSDtfsCounter, 2343 mSDsluCounter, 3904 mSDsCounter, 0 mSdLazyCounter, 1871 mSolverCounterSat, 960 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2578 SdHoareTripleChecker+Valid, 5977 SdHoareTripleChecker+Invalid, 2831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 960 IncrementalHoareTripleChecker+Valid, 1871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-14 18:33:15,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2578 Valid, 5977 Invalid, 2831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [960 Valid, 1871 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-14 18:33:15,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15147 states. [2021-12-14 18:33:15,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15147 to 14481. [2021-12-14 18:33:15,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14481 states, 9858 states have (on average 1.2474132684114425) internal successors, (12297), 10149 states have internal predecessors, (12297), 3738 states have call successors, (3738), 886 states have call predecessors, (3738), 883 states have return successors, (3741), 3709 states have call predecessors, (3741), 3738 states have call successors, (3741) [2021-12-14 18:33:15,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14481 states to 14481 states and 19776 transitions. [2021-12-14 18:33:15,681 INFO L78 Accepts]: Start accepts. Automaton has 14481 states and 19776 transitions. Word has length 187 [2021-12-14 18:33:15,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:33:15,682 INFO L470 AbstractCegarLoop]: Abstraction has 14481 states and 19776 transitions. [2021-12-14 18:33:15,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (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) [2021-12-14 18:33:15,682 INFO L276 IsEmpty]: Start isEmpty. Operand 14481 states and 19776 transitions. [2021-12-14 18:33:15,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-12-14 18:33:15,687 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:33:15,687 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:33:15,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-14 18:33:15,687 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:33:15,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:33:15,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1563696680, now seen corresponding path program 1 times [2021-12-14 18:33:15,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:33:15,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549608150] [2021-12-14 18:33:15,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:33:15,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:33:15,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:33:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:33:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:33:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:33:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:15,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:33:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:15,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:33:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:15,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:33:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:15,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:33:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 18:33:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 18:33:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:33:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 18:33:15,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-14 18:33:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 18:33:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-14 18:33:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-14 18:33:15,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-14 18:33:15,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:15,943 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2021-12-14 18:33:15,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:33:15,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549608150] [2021-12-14 18:33:15,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549608150] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:33:15,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:33:15,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:33:15,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344287757] [2021-12-14 18:33:15,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:33:15,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:33:15,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:33:15,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:33:15,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:33:15,946 INFO L87 Difference]: Start difference. First operand 14481 states and 19776 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-14 18:33:19,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:33:19,002 INFO L93 Difference]: Finished difference Result 34766 states and 47723 transitions. [2021-12-14 18:33:19,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:33:19,002 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 192 [2021-12-14 18:33:19,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:33:19,078 INFO L225 Difference]: With dead ends: 34766 [2021-12-14 18:33:19,079 INFO L226 Difference]: Without dead ends: 21019 [2021-12-14 18:33:19,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:33:19,120 INFO L933 BasicCegarLoop]: 3470 mSDtfsCounter, 1849 mSDsluCounter, 2780 mSDsCounter, 0 mSdLazyCounter, 1521 mSolverCounterSat, 867 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2164 SdHoareTripleChecker+Valid, 6250 SdHoareTripleChecker+Invalid, 2388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 867 IncrementalHoareTripleChecker+Valid, 1521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-14 18:33:19,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2164 Valid, 6250 Invalid, 2388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [867 Valid, 1521 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-14 18:33:19,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21019 states. [2021-12-14 18:33:19,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21019 to 20089. [2021-12-14 18:33:19,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20089 states, 13717 states have (on average 1.2486695341546985) internal successors, (17128), 14115 states have internal predecessors, (17128), 5142 states have call successors, (5142), 1231 states have call predecessors, (5142), 1228 states have return successors, (5145), 5111 states have call predecessors, (5145), 5142 states have call successors, (5145) [2021-12-14 18:33:19,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20089 states to 20089 states and 27415 transitions. [2021-12-14 18:33:19,877 INFO L78 Accepts]: Start accepts. Automaton has 20089 states and 27415 transitions. Word has length 192 [2021-12-14 18:33:19,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:33:19,878 INFO L470 AbstractCegarLoop]: Abstraction has 20089 states and 27415 transitions. [2021-12-14 18:33:19,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-14 18:33:19,878 INFO L276 IsEmpty]: Start isEmpty. Operand 20089 states and 27415 transitions. [2021-12-14 18:33:19,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2021-12-14 18:33:19,892 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:33:19,892 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 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] [2021-12-14 18:33:19,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-14 18:33:19,893 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:33:19,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:33:19,893 INFO L85 PathProgramCache]: Analyzing trace with hash -167542827, now seen corresponding path program 1 times [2021-12-14 18:33:19,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:33:19,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245315449] [2021-12-14 18:33:19,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:33:19,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:33:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:19,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:33:19,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:19,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:19,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:19,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:33:19,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:19,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:19,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:19,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:33:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:20,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:33:20,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:20,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:33:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:20,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:33:20,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:20,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:33:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:20,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:33:20,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:20,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 18:33:20,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 18:33:20,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:33:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 18:33:20,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-14 18:33:20,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 18:33:20,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:20,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-14 18:33:20,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-14 18:33:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-14 18:33:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:33:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:33:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-14 18:33:20,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:33:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:33:20,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-14 18:33:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-14 18:33:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-14 18:33:20,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:20,288 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2021-12-14 18:33:20,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:33:20,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245315449] [2021-12-14 18:33:20,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245315449] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:33:20,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:33:20,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:33:20,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648683982] [2021-12-14 18:33:20,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:33:20,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:33:20,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:33:20,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:33:20,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:33:20,290 INFO L87 Difference]: Start difference. First operand 20089 states and 27415 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-14 18:33:23,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:33:23,218 INFO L93 Difference]: Finished difference Result 46189 states and 63305 transitions. [2021-12-14 18:33:23,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:33:23,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 266 [2021-12-14 18:33:23,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:33:23,300 INFO L225 Difference]: With dead ends: 46189 [2021-12-14 18:33:23,300 INFO L226 Difference]: Without dead ends: 26101 [2021-12-14 18:33:23,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:33:23,341 INFO L933 BasicCegarLoop]: 3483 mSDtfsCounter, 1845 mSDsluCounter, 2799 mSDsCounter, 0 mSdLazyCounter, 1509 mSolverCounterSat, 856 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2157 SdHoareTripleChecker+Valid, 6282 SdHoareTripleChecker+Invalid, 2365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 856 IncrementalHoareTripleChecker+Valid, 1509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:33:23,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2157 Valid, 6282 Invalid, 2365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [856 Valid, 1509 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-14 18:33:23,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26101 states. [2021-12-14 18:33:23,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26101 to 24938. [2021-12-14 18:33:24,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24938 states, 17061 states have (on average 1.2492233749487134) internal successors, (21313), 17552 states have internal predecessors, (21313), 6348 states have call successors, (6348), 1530 states have call predecessors, (6348), 1527 states have return successors, (6351), 6315 states have call predecessors, (6351), 6348 states have call successors, (6351) [2021-12-14 18:33:24,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24938 states to 24938 states and 34012 transitions. [2021-12-14 18:33:24,209 INFO L78 Accepts]: Start accepts. Automaton has 24938 states and 34012 transitions. Word has length 266 [2021-12-14 18:33:24,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:33:24,211 INFO L470 AbstractCegarLoop]: Abstraction has 24938 states and 34012 transitions. [2021-12-14 18:33:24,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-14 18:33:24,211 INFO L276 IsEmpty]: Start isEmpty. Operand 24938 states and 34012 transitions. [2021-12-14 18:33:24,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2021-12-14 18:33:24,223 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:33:24,223 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 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] [2021-12-14 18:33:24,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-14 18:33:24,224 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:33:24,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:33:24,224 INFO L85 PathProgramCache]: Analyzing trace with hash 491988695, now seen corresponding path program 1 times [2021-12-14 18:33:24,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:33:24,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170282858] [2021-12-14 18:33:24,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:33:24,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:33:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:33:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:24,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:33:24,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:24,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:33:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:24,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:33:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:24,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:33:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:33:24,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:33:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:24,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:33:24,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 18:33:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 18:33:24,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:33:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 18:33:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-14 18:33:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 18:33:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-14 18:33:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-14 18:33:24,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-14 18:33:24,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:33:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:33:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-14 18:33:24,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:33:24,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:33:24,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-14 18:33:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-14 18:33:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-14 18:33:24,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:24,411 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2021-12-14 18:33:24,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:33:24,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170282858] [2021-12-14 18:33:24,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170282858] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:33:24,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:33:24,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:33:24,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086710763] [2021-12-14 18:33:24,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:33:24,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:33:24,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:33:24,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:33:24,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:33:24,414 INFO L87 Difference]: Start difference. First operand 24938 states and 34012 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-14 18:33:27,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:33:27,213 INFO L93 Difference]: Finished difference Result 56801 states and 77761 transitions. [2021-12-14 18:33:27,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:33:27,214 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 266 [2021-12-14 18:33:27,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:33:27,340 INFO L225 Difference]: With dead ends: 56801 [2021-12-14 18:33:27,340 INFO L226 Difference]: Without dead ends: 32597 [2021-12-14 18:33:27,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:33:27,493 INFO L933 BasicCegarLoop]: 3490 mSDtfsCounter, 2142 mSDsluCounter, 2500 mSDsCounter, 0 mSdLazyCounter, 1473 mSolverCounterSat, 904 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2503 SdHoareTripleChecker+Valid, 5990 SdHoareTripleChecker+Invalid, 2377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 904 IncrementalHoareTripleChecker+Valid, 1473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-14 18:33:27,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2503 Valid, 5990 Invalid, 2377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [904 Valid, 1473 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-14 18:33:27,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32597 states. [2021-12-14 18:33:28,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32597 to 31068. [2021-12-14 18:33:28,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31068 states, 21289 states have (on average 1.2489078867020527) internal successors, (26588), 21893 states have internal predecessors, (26588), 7860 states have call successors, (7860), 1920 states have call predecessors, (7860), 1917 states have return successors, (7863), 7825 states have call predecessors, (7863), 7860 states have call successors, (7863) [2021-12-14 18:33:28,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31068 states to 31068 states and 42311 transitions. [2021-12-14 18:33:28,806 INFO L78 Accepts]: Start accepts. Automaton has 31068 states and 42311 transitions. Word has length 266 [2021-12-14 18:33:28,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:33:28,807 INFO L470 AbstractCegarLoop]: Abstraction has 31068 states and 42311 transitions. [2021-12-14 18:33:28,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-14 18:33:28,807 INFO L276 IsEmpty]: Start isEmpty. Operand 31068 states and 42311 transitions. [2021-12-14 18:33:28,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2021-12-14 18:33:28,828 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:33:28,829 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 10, 10, 10, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:33:28,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-14 18:33:28,829 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:33:28,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:33:28,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1223514187, now seen corresponding path program 1 times [2021-12-14 18:33:28,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:33:28,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533308720] [2021-12-14 18:33:28,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:33:28,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:33:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:28,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:33:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:28,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:28,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:33:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:28,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:28,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:33:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:28,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:28,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:28,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:33:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:28,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:28,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:33:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:28,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:28,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:28,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:33:28,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:28,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:28,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:28,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:33:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:28,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:28,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:33:28,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:29,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 18:33:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 18:33:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:33:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 18:33:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-14 18:33:29,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 18:33:29,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:29,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-14 18:33:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-14 18:33:29,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-14 18:33:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:33:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:33:29,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-14 18:33:29,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:33:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:33:29,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-14 18:33:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-14 18:33:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-14 18:33:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-14 18:33:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:33:29,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-12-14 18:33:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-14 18:33:29,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-14 18:33:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:33:29,115 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 751 trivial. 0 not checked. [2021-12-14 18:33:29,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:33:29,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533308720] [2021-12-14 18:33:29,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533308720] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:33:29,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:33:29,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:33:29,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346402919] [2021-12-14 18:33:29,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:33:29,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:33:29,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:33:29,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:33:29,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:33:29,117 INFO L87 Difference]: Start difference. First operand 31068 states and 42311 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-14 18:33:32,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:33:32,348 INFO L93 Difference]: Finished difference Result 68737 states and 94011 transitions. [2021-12-14 18:33:32,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:33:32,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 321 [2021-12-14 18:33:32,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:33:32,497 INFO L225 Difference]: With dead ends: 68737 [2021-12-14 18:33:32,497 INFO L226 Difference]: Without dead ends: 38403 [2021-12-14 18:33:32,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:33:32,580 INFO L933 BasicCegarLoop]: 3369 mSDtfsCounter, 1845 mSDsluCounter, 2709 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 880 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2160 SdHoareTripleChecker+Valid, 6078 SdHoareTripleChecker+Invalid, 2393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 880 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:33:32,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2160 Valid, 6078 Invalid, 2393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [880 Valid, 1513 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-14 18:33:32,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38403 states.