./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.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-spinlock_drivers-net-ethernet-packetengines-hamachi.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 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 18:37:42,309 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 18:37:42,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 18:37:42,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 18:37:42,359 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 18:37:42,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 18:37:42,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 18:37:42,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 18:37:42,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 18:37:42,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 18:37:42,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 18:37:42,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 18:37:42,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 18:37:42,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 18:37:42,367 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 18:37:42,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 18:37:42,369 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 18:37:42,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 18:37:42,372 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 18:37:42,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 18:37:42,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 18:37:42,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 18:37:42,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 18:37:42,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 18:37:42,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 18:37:42,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 18:37:42,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 18:37:42,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 18:37:42,386 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 18:37:42,387 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 18:37:42,387 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 18:37:42,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 18:37:42,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 18:37:42,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 18:37:42,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 18:37:42,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 18:37:42,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 18:37:42,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 18:37:42,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 18:37:42,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 18:37:42,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 18:37:42,393 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 18:37:42,419 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 18:37:42,421 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 18:37:42,422 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 18:37:42,422 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 18:37:42,423 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 18:37:42,423 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 18:37:42,423 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 18:37:42,424 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 18:37:42,424 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 18:37:42,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 18:37:42,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 18:37:42,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 18:37:42,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 18:37:42,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 18:37:42,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 18:37:42,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 18:37:42,426 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 18:37:42,426 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 18:37:42,426 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 18:37:42,426 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 18:37:42,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 18:37:42,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:37:42,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 18:37:42,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 18:37:42,427 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 18:37:42,428 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 18:37:42,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 18:37:42,429 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 18:37:42,429 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 18:37:42,429 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 18:37:42,429 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 18:37:42,429 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e [2021-12-14 18:37:42,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 18:37:42,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 18:37:42,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 18:37:42,681 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 18:37:42,682 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 18:37:42,683 INFO L432 ainManager$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-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2021-12-14 18:37:42,731 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/385a9a7be/c4570ecc77ba48b995875271d007ff81/FLAGd83f22450 [2021-12-14 18:37:43,363 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 18:37:43,364 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2021-12-14 18:37:43,405 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/385a9a7be/c4570ecc77ba48b995875271d007ff81/FLAGd83f22450 [2021-12-14 18:37:43,513 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/385a9a7be/c4570ecc77ba48b995875271d007ff81 [2021-12-14 18:37:43,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 18:37:43,517 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 18:37:43,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 18:37:43,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 18:37:43,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 18:37:43,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:37:43" (1/1) ... [2021-12-14 18:37:43,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@219b5deb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:43, skipping insertion in model container [2021-12-14 18:37:43,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:37:43" (1/1) ... [2021-12-14 18:37:43,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 18:37:43,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 18:37:45,317 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-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322818,322831] [2021-12-14 18:37:45,330 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-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322987,323000] [2021-12-14 18:37:45,335 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-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323154,323167] [2021-12-14 18:37:45,335 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-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323322,323335] [2021-12-14 18:37:45,365 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:37:45,453 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 18:37:45,854 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-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322818,322831] [2021-12-14 18:37:45,855 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-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322987,323000] [2021-12-14 18:37:45,855 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-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323154,323167] [2021-12-14 18:37:45,856 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-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323322,323335] [2021-12-14 18:37:45,875 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:37:46,118 INFO L208 MainTranslator]: Completed translation [2021-12-14 18:37:46,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:46 WrapperNode [2021-12-14 18:37:46,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 18:37:46,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 18:37:46,137 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 18:37:46,137 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 18:37:46,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:46" (1/1) ... [2021-12-14 18:37:46,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:46" (1/1) ... [2021-12-14 18:37:46,435 INFO L137 Inliner]: procedures = 412, calls = 1826, calls flagged for inlining = 207, calls inlined = 191, statements flattened = 4587 [2021-12-14 18:37:46,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 18:37:46,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 18:37:46,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 18:37:46,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 18:37:46,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:46" (1/1) ... [2021-12-14 18:37:46,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:46" (1/1) ... [2021-12-14 18:37:46,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:46" (1/1) ... [2021-12-14 18:37:46,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:46" (1/1) ... [2021-12-14 18:37:46,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:46" (1/1) ... [2021-12-14 18:37:46,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:46" (1/1) ... [2021-12-14 18:37:46,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:46" (1/1) ... [2021-12-14 18:37:46,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 18:37:46,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 18:37:46,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 18:37:46,608 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 18:37:46,609 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:46" (1/1) ... [2021-12-14 18:37:46,615 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:37:46,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:37:46,645 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 18:37:46,647 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 18:37:46,680 INFO L130 BoogieDeclarations]: Found specification of procedure check_if_running [2021-12-14 18:37:46,681 INFO L138 BoogieDeclarations]: Found implementation of procedure check_if_running [2021-12-14 18:37:46,681 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-14 18:37:46,681 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-14 18:37:46,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 18:37:46,681 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 18:37:46,681 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-14 18:37:46,681 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-14 18:37:46,682 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-14 18:37:46,682 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-14 18:37:46,682 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_close [2021-12-14 18:37:46,682 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_close [2021-12-14 18:37:46,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 18:37:46,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 18:37:46,683 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-12-14 18:37:46,683 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-12-14 18:37:46,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-14 18:37:46,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-14 18:37:46,683 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-14 18:37:46,684 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-14 18:37:46,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hamachi_private [2021-12-14 18:37:46,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hamachi_private [2021-12-14 18:37:46,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-14 18:37:46,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-14 18:37:46,684 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-14 18:37:46,684 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-14 18:37:46,684 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-14 18:37:46,685 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-14 18:37:46,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-14 18:37:46,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-14 18:37:46,685 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-14 18:37:46,685 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-14 18:37:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 18:37:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-14 18:37:46,686 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-14 18:37:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-14 18:37:46,686 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-14 18:37:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 18:37:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-14 18:37:46,687 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-14 18:37:46,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 18:37:46,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-14 18:37:46,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-14 18:37:46,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 18:37:46,687 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-12-14 18:37:46,687 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-12-14 18:37:46,687 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-14 18:37:46,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-14 18:37:46,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-14 18:37:46,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-14 18:37:46,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-14 18:37:46,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-14 18:37:46,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-14 18:37:46,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-14 18:37:46,690 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-12-14 18:37:46,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-12-14 18:37:46,690 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-14 18:37:46,690 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-14 18:37:46,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-14 18:37:46,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-14 18:37:46,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 18:37:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-14 18:37:46,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-14 18:37:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-14 18:37:46,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-14 18:37:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-12-14 18:37:46,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-12-14 18:37:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 18:37:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-14 18:37:46,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-14 18:37:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-14 18:37:46,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-14 18:37:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 18:37:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:37:46,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:37:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-14 18:37:46,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-14 18:37:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_hamachi_private [2021-12-14 18:37:46,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_hamachi_private [2021-12-14 18:37:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-14 18:37:46,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-14 18:37:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 18:37:46,694 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 18:37:46,694 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-14 18:37:46,694 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-14 18:37:46,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-14 18:37:46,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-14 18:37:46,695 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-14 18:37:46,695 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-14 18:37:46,695 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-12-14 18:37:46,695 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-12-14 18:37:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-12-14 18:37:46,696 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-12-14 18:37:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_nway_reset [2021-12-14 18:37:46,696 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_nway_reset [2021-12-14 18:37:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-14 18:37:46,696 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-14 18:37:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 18:37:46,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 18:37:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 18:37:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 18:37:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 18:37:46,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 18:37:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-14 18:37:46,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-14 18:37:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_hamachi_exit_15_2 [2021-12-14 18:37:46,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_hamachi_exit_15_2 [2021-12-14 18:37:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-14 18:37:46,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-14 18:37:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-14 18:37:46,698 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-14 18:37:46,699 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_open [2021-12-14 18:37:46,699 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_open [2021-12-14 18:37:46,701 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-14 18:37:46,701 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-14 18:37:46,701 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-14 18:37:46,702 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-14 18:37:46,702 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-14 18:37:46,702 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-14 18:37:46,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 18:37:46,703 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-14 18:37:46,703 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-14 18:37:46,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 18:37:46,708 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-14 18:37:46,708 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-14 18:37:46,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 18:37:46,708 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-14 18:37:46,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-14 18:37:46,708 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-14 18:37:46,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-14 18:37:46,709 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-14 18:37:46,709 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-14 18:37:46,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_68 [2021-12-14 18:37:46,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_68 [2021-12-14 18:37:46,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-14 18:37:46,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-14 18:37:46,709 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-14 18:37:46,709 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-14 18:37:46,709 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-14 18:37:46,710 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-14 18:37:46,710 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-14 18:37:46,710 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-14 18:37:46,710 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_remove_one [2021-12-14 18:37:46,710 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_remove_one [2021-12-14 18:37:46,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 18:37:46,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 18:37:46,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 18:37:46,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_69 [2021-12-14 18:37:46,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_69 [2021-12-14 18:37:46,711 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_get_stats [2021-12-14 18:37:46,711 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_get_stats [2021-12-14 18:37:46,711 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_tx_timeout [2021-12-14 18:37:46,711 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_tx_timeout [2021-12-14 18:37:46,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-14 18:37:46,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-14 18:37:46,712 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-12-14 18:37:46,712 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-12-14 18:37:46,712 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-14 18:37:46,712 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-14 18:37:46,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 18:37:46,712 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_timer [2021-12-14 18:37:46,712 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_timer [2021-12-14 18:37:46,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-14 18:37:46,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-14 18:37:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-12-14 18:37:46,713 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-12-14 18:37:47,508 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 18:37:47,510 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 18:37:47,623 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 18:37:49,164 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-14 18:37:49,222 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 18:37:49,233 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 18:37:49,234 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 18:37:49,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:37:49 BoogieIcfgContainer [2021-12-14 18:37:49,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 18:37:49,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 18:37:49,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 18:37:49,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 18:37:49,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:37:43" (1/3) ... [2021-12-14 18:37:49,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a5d8cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:37:49, skipping insertion in model container [2021-12-14 18:37:49,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:46" (2/3) ... [2021-12-14 18:37:49,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a5d8cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:37:49, skipping insertion in model container [2021-12-14 18:37:49,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:37:49" (3/3) ... [2021-12-14 18:37:49,242 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2021-12-14 18:37:49,246 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 18:37:49,246 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-14 18:37:49,278 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 18:37:49,283 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 18:37:49,283 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-14 18:37:49,317 INFO L276 IsEmpty]: Start isEmpty. Operand has 1568 states, 1094 states have (on average 1.287020109689214) internal successors, (1408), 1121 states have internal predecessors, (1408), 397 states have call successors, (397), 75 states have call predecessors, (397), 74 states have return successors, (390), 377 states have call predecessors, (390), 390 states have call successors, (390) [2021-12-14 18:37:49,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-14 18:37:49,332 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:37:49,332 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:37:49,333 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:37:49,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:37:49,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1114654547, now seen corresponding path program 1 times [2021-12-14 18:37:49,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:37:49,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624216837] [2021-12-14 18:37:49,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:37:49,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:37:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:49,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:37:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:49,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:49,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:37:49,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:49,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:49,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:37:49,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:49,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:49,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:37:49,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:49,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:49,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:37:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:49,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:49,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:37:49,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:49,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:49,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:49,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:37:49,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:49,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:49,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:49,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:37:49,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:49,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:49,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:49,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:37:49,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:49,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:49,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 18:37:49,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:49,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 18:37:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:49,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-14 18:37:49,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:49,924 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-12-14 18:37:49,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:37:49,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624216837] [2021-12-14 18:37:49,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624216837] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:37:49,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:37:49,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:37:49,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069575464] [2021-12-14 18:37:49,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:37:49,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:37:49,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:37:49,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:37:49,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:37:49,968 INFO L87 Difference]: Start difference. First operand has 1568 states, 1094 states have (on average 1.287020109689214) internal successors, (1408), 1121 states have internal predecessors, (1408), 397 states have call successors, (397), 75 states have call predecessors, (397), 74 states have return successors, (390), 377 states have call predecessors, (390), 390 states have call successors, (390) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-14 18:37:52,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:37:52,059 INFO L93 Difference]: Finished difference Result 4440 states and 6347 transitions. [2021-12-14 18:37:52,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:37:52,061 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 129 [2021-12-14 18:37:52,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:37:52,084 INFO L225 Difference]: With dead ends: 4440 [2021-12-14 18:37:52,085 INFO L226 Difference]: Without dead ends: 2879 [2021-12-14 18:37:52,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 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 18:37:52,098 INFO L933 BasicCegarLoop]: 2349 mSDtfsCounter, 2379 mSDsluCounter, 2502 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 1113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2690 SdHoareTripleChecker+Valid, 4851 SdHoareTripleChecker+Invalid, 2425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1113 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-14 18:37:52,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2690 Valid, 4851 Invalid, 2425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1113 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-14 18:37:52,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2879 states. [2021-12-14 18:37:52,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2879 to 2819. [2021-12-14 18:37:52,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 1966 states have (on average 1.2746693794506612) internal successors, (2506), 2024 states have internal predecessors, (2506), 703 states have call successors, (703), 142 states have call predecessors, (703), 147 states have return successors, (725), 670 states have call predecessors, (725), 699 states have call successors, (725) [2021-12-14 18:37:52,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 3934 transitions. [2021-12-14 18:37:52,258 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 3934 transitions. Word has length 129 [2021-12-14 18:37:52,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:37:52,258 INFO L470 AbstractCegarLoop]: Abstraction has 2819 states and 3934 transitions. [2021-12-14 18:37:52,258 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, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-14 18:37:52,259 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 3934 transitions. [2021-12-14 18:37:52,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-14 18:37:52,264 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:37:52,264 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:37:52,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 18:37:52,264 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:37:52,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:37:52,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1677512621, now seen corresponding path program 1 times [2021-12-14 18:37:52,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:37:52,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243816152] [2021-12-14 18:37:52,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:37:52,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:37:52,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:52,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:37:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:52,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:52,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:52,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:37:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:52,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:52,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:52,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:37:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:52,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:52,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:52,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:37:52,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:52,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:52,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:52,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:37:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:52,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:52,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:52,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:37:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:52,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:52,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:52,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:37:52,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:52,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:52,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:52,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:37:52,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:52,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:52,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:37:52,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:52,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:52,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:52,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 18:37:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:52,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-14 18:37:52,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:52,532 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-12-14 18:37:52,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:37:52,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243816152] [2021-12-14 18:37:52,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243816152] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:37:52,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:37:52,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:37:52,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256906269] [2021-12-14 18:37:52,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:37:52,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:37:52,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:37:52,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:37:52,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:37:52,535 INFO L87 Difference]: Start difference. First operand 2819 states and 3934 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-14 18:37:55,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:37:55,405 INFO L93 Difference]: Finished difference Result 8334 states and 11656 transitions. [2021-12-14 18:37:55,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:37:55,416 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 129 [2021-12-14 18:37:55,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:37:55,467 INFO L225 Difference]: With dead ends: 8334 [2021-12-14 18:37:55,467 INFO L226 Difference]: Without dead ends: 5538 [2021-12-14 18:37:55,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 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 18:37:55,511 INFO L933 BasicCegarLoop]: 2278 mSDtfsCounter, 2618 mSDsluCounter, 2420 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 1120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2970 SdHoareTripleChecker+Valid, 4698 SdHoareTripleChecker+Invalid, 2517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1120 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-14 18:37:55,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2970 Valid, 4698 Invalid, 2517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1120 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-14 18:37:55,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5538 states. [2021-12-14 18:37:55,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5538 to 5468. [2021-12-14 18:37:55,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5468 states, 3830 states have (on average 1.2754569190600522) internal successors, (4885), 3938 states have internal predecessors, (4885), 1344 states have call successors, (1344), 280 states have call predecessors, (1344), 291 states have return successors, (1392), 1285 states have call predecessors, (1392), 1340 states have call successors, (1392) [2021-12-14 18:37:55,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5468 states to 5468 states and 7621 transitions. [2021-12-14 18:37:55,755 INFO L78 Accepts]: Start accepts. Automaton has 5468 states and 7621 transitions. Word has length 129 [2021-12-14 18:37:55,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:37:55,756 INFO L470 AbstractCegarLoop]: Abstraction has 5468 states and 7621 transitions. [2021-12-14 18:37:55,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-14 18:37:55,756 INFO L276 IsEmpty]: Start isEmpty. Operand 5468 states and 7621 transitions. [2021-12-14 18:37:55,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-14 18:37:55,758 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:37:55,758 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:37:55,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 18:37:55,759 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:37:55,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:37:55,759 INFO L85 PathProgramCache]: Analyzing trace with hash 527388282, now seen corresponding path program 1 times [2021-12-14 18:37:55,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:37:55,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443610796] [2021-12-14 18:37:55,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:37:55,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:37:55,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:55,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:37:55,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:55,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:55,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:55,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:37:55,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:55,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:55,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:37:55,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:55,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:55,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:37:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:55,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:55,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:55,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:37:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:55,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:55,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:55,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:37:55,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:55,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:55,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:55,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:37:55,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:55,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:55,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:56,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:37:56,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:56,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:56,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:37:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:56,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:56,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:56,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 18:37:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:56,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 18:37:56,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:56,037 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-12-14 18:37:56,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:37:56,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443610796] [2021-12-14 18:37:56,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443610796] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:37:56,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:37:56,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:37:56,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601119006] [2021-12-14 18:37:56,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:37:56,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:37:56,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:37:56,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:37:56,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:37:56,042 INFO L87 Difference]: Start difference. First operand 5468 states and 7621 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-14 18:37:58,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:37:58,477 INFO L93 Difference]: Finished difference Result 15548 states and 21726 transitions. [2021-12-14 18:37:58,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:37:58,478 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 134 [2021-12-14 18:37:58,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:37:58,541 INFO L225 Difference]: With dead ends: 15548 [2021-12-14 18:37:58,542 INFO L226 Difference]: Without dead ends: 10103 [2021-12-14 18:37:58,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 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 18:37:58,571 INFO L933 BasicCegarLoop]: 2257 mSDtfsCounter, 2375 mSDsluCounter, 2416 mSDsCounter, 0 mSdLazyCounter, 1392 mSolverCounterSat, 1138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2698 SdHoareTripleChecker+Valid, 4673 SdHoareTripleChecker+Invalid, 2530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1138 IncrementalHoareTripleChecker+Valid, 1392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-14 18:37:58,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2698 Valid, 4673 Invalid, 2530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1138 Valid, 1392 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-14 18:37:58,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10103 states. [2021-12-14 18:37:58,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10103 to 9886. [2021-12-14 18:37:58,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9886 states, 6886 states have (on average 1.2769387162358408) internal successors, (8793), 7088 states have internal predecessors, (8793), 2452 states have call successors, (2452), 532 states have call predecessors, (2452), 545 states have return successors, (2530), 2329 states have call predecessors, (2530), 2448 states have call successors, (2530) [2021-12-14 18:37:58,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9886 states to 9886 states and 13775 transitions. [2021-12-14 18:37:58,940 INFO L78 Accepts]: Start accepts. Automaton has 9886 states and 13775 transitions. Word has length 134 [2021-12-14 18:37:58,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:37:58,941 INFO L470 AbstractCegarLoop]: Abstraction has 9886 states and 13775 transitions. [2021-12-14 18:37:58,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-14 18:37:58,941 INFO L276 IsEmpty]: Start isEmpty. Operand 9886 states and 13775 transitions. [2021-12-14 18:37:58,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-12-14 18:37:58,945 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:37:58,945 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 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 18:37:58,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 18:37:58,945 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:37:58,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:37:58,946 INFO L85 PathProgramCache]: Analyzing trace with hash -730204044, now seen corresponding path program 1 times [2021-12-14 18:37:58,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:37:58,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406593690] [2021-12-14 18:37:58,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:37:58,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:37:58,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:37:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:59,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:37:59,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:37:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:59,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:37:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:59,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:37:59,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:37:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:59,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:37:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:59,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:37:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:37:59,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:59,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 18:37:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 18:37:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 18:37:59,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 18:37:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-14 18:37:59,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:37:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-14 18:37:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:37:59,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-14 18:37:59,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:37:59,206 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2021-12-14 18:37:59,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:37:59,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406593690] [2021-12-14 18:37:59,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406593690] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:37:59,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:37:59,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:37:59,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017818068] [2021-12-14 18:37:59,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:37:59,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:37:59,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:37:59,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:37:59,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:37:59,208 INFO L87 Difference]: Start difference. First operand 9886 states and 13775 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-14 18:38:01,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:38:01,494 INFO L93 Difference]: Finished difference Result 20076 states and 28034 transitions. [2021-12-14 18:38:01,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:38:01,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 187 [2021-12-14 18:38:01,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:38:01,576 INFO L225 Difference]: With dead ends: 20076 [2021-12-14 18:38:01,576 INFO L226 Difference]: Without dead ends: 14962 [2021-12-14 18:38:01,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 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 18:38:01,598 INFO L933 BasicCegarLoop]: 3916 mSDtfsCounter, 2104 mSDsluCounter, 3259 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 769 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2454 SdHoareTripleChecker+Valid, 7175 SdHoareTripleChecker+Invalid, 2183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 769 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:38:01,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2454 Valid, 7175 Invalid, 2183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [769 Valid, 1414 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-14 18:38:01,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14962 states. [2021-12-14 18:38:02,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14962 to 14679. [2021-12-14 18:38:02,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14679 states, 10233 states have (on average 1.2771425779341348) internal successors, (13069), 10529 states have internal predecessors, (13069), 3628 states have call successors, (3628), 795 states have call predecessors, (3628), 815 states have return successors, (3747), 3450 states have call predecessors, (3747), 3624 states have call successors, (3747) [2021-12-14 18:38:02,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14679 states to 14679 states and 20444 transitions. [2021-12-14 18:38:02,190 INFO L78 Accepts]: Start accepts. Automaton has 14679 states and 20444 transitions. Word has length 187 [2021-12-14 18:38:02,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:38:02,191 INFO L470 AbstractCegarLoop]: Abstraction has 14679 states and 20444 transitions. [2021-12-14 18:38:02,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-14 18:38:02,192 INFO L276 IsEmpty]: Start isEmpty. Operand 14679 states and 20444 transitions. [2021-12-14 18:38:02,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-12-14 18:38:02,197 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:38:02,197 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 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 18:38:02,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 18:38:02,198 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:38:02,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:38:02,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1193023990, now seen corresponding path program 1 times [2021-12-14 18:38:02,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:38:02,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383839307] [2021-12-14 18:38:02,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:38:02,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:38:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:38:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:02,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:38:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:38:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:02,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:38:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:38:02,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:38:02,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:02,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:38:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:38:02,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:02,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:38:02,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:02,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 18:38:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 18:38:02,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 18:38:02,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 18:38:02,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-14 18:38:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:02,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-14 18:38:02,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:38:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-14 18:38:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:02,516 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-12-14 18:38:02,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:38:02,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383839307] [2021-12-14 18:38:02,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383839307] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:38:02,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:38:02,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:38:02,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715370952] [2021-12-14 18:38:02,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:38:02,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:38:02,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:38:02,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:38:02,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:38:02,518 INFO L87 Difference]: Start difference. First operand 14679 states and 20444 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 18:38:04,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:38:04,476 INFO L93 Difference]: Finished difference Result 14964 states and 20899 transitions. [2021-12-14 18:38:04,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:38:04,477 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 187 [2021-12-14 18:38:04,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:38:04,531 INFO L225 Difference]: With dead ends: 14964 [2021-12-14 18:38:04,532 INFO L226 Difference]: Without dead ends: 14962 [2021-12-14 18:38:04,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 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 18:38:04,540 INFO L933 BasicCegarLoop]: 2033 mSDtfsCounter, 2182 mSDsluCounter, 4057 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 793 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2412 SdHoareTripleChecker+Valid, 6090 SdHoareTripleChecker+Invalid, 2390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 793 IncrementalHoareTripleChecker+Valid, 1597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-14 18:38:04,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2412 Valid, 6090 Invalid, 2390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [793 Valid, 1597 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-14 18:38:04,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14962 states. [2021-12-14 18:38:04,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14962 to 14683. [2021-12-14 18:38:04,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14683 states, 10236 states have (on average 1.2770613520906604) internal successors, (13072), 10532 states have internal predecessors, (13072), 3628 states have call successors, (3628), 796 states have call predecessors, (3628), 816 states have return successors, (3747), 3450 states have call predecessors, (3747), 3624 states have call successors, (3747) [2021-12-14 18:38:05,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14683 states to 14683 states and 20447 transitions. [2021-12-14 18:38:05,041 INFO L78 Accepts]: Start accepts. Automaton has 14683 states and 20447 transitions. Word has length 187 [2021-12-14 18:38:05,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:38:05,043 INFO L470 AbstractCegarLoop]: Abstraction has 14683 states and 20447 transitions. [2021-12-14 18:38:05,043 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 18:38:05,044 INFO L276 IsEmpty]: Start isEmpty. Operand 14683 states and 20447 transitions. [2021-12-14 18:38:05,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-12-14 18:38:05,050 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:38:05,050 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 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] [2021-12-14 18:38:05,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 18:38:05,051 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:38:05,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:38:05,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1101116577, now seen corresponding path program 1 times [2021-12-14 18:38:05,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:38:05,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763873816] [2021-12-14 18:38:05,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:38:05,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:38:05,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:38:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:38:05,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:38:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:38:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:38:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:38:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:38:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:05,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:38:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:38:05,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:05,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 18:38:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 18:38:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 18:38:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 18:38:05,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-14 18:38:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:05,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-14 18:38:05,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:38:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-14 18:38:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-14 18:38:05,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:05,399 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-12-14 18:38:05,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:38:05,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763873816] [2021-12-14 18:38:05,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763873816] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:38:05,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:38:05,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:38:05,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189221342] [2021-12-14 18:38:05,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:38:05,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:38:05,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:38:05,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:38:05,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:38:05,401 INFO L87 Difference]: Start difference. First operand 14683 states and 20447 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (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 18:38:07,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:38:07,385 INFO L93 Difference]: Finished difference Result 14968 states and 20902 transitions. [2021-12-14 18:38:07,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:38:07,386 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (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 192 [2021-12-14 18:38:07,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:38:07,437 INFO L225 Difference]: With dead ends: 14968 [2021-12-14 18:38:07,438 INFO L226 Difference]: Without dead ends: 14966 [2021-12-14 18:38:07,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 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 18:38:07,448 INFO L933 BasicCegarLoop]: 2035 mSDtfsCounter, 2174 mSDsluCounter, 4054 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 792 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2405 SdHoareTripleChecker+Valid, 6089 SdHoareTripleChecker+Invalid, 2389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 792 IncrementalHoareTripleChecker+Valid, 1597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-14 18:38:07,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2405 Valid, 6089 Invalid, 2389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [792 Valid, 1597 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-14 18:38:07,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14966 states. [2021-12-14 18:38:07,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14966 to 14687. [2021-12-14 18:38:07,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14687 states, 10239 states have (on average 1.276980173845102) internal successors, (13075), 10535 states have internal predecessors, (13075), 3628 states have call successors, (3628), 797 states have call predecessors, (3628), 817 states have return successors, (3747), 3450 states have call predecessors, (3747), 3624 states have call successors, (3747) [2021-12-14 18:38:07,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14687 states to 14687 states and 20450 transitions. [2021-12-14 18:38:07,857 INFO L78 Accepts]: Start accepts. Automaton has 14687 states and 20450 transitions. Word has length 192 [2021-12-14 18:38:07,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:38:07,858 INFO L470 AbstractCegarLoop]: Abstraction has 14687 states and 20450 transitions. [2021-12-14 18:38:07,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (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 18:38:07,858 INFO L276 IsEmpty]: Start isEmpty. Operand 14687 states and 20450 transitions. [2021-12-14 18:38:07,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-12-14 18:38:07,864 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:38:07,864 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:38:07,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 18:38:07,864 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:38:07,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:38:07,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1614051123, now seen corresponding path program 1 times [2021-12-14 18:38:07,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:38:07,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136318503] [2021-12-14 18:38:07,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:38:07,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:38:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:38:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:38:08,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:08,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:38:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:08,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:38:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:38:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:38:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:38:08,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:38:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:38:08,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 18:38:08,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 18:38:08,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 18:38:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 18:38:08,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-14 18:38:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:08,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-14 18:38:08,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:38:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-14 18:38:08,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 18:38:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:38:08,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-14 18:38:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-14 18:38:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:08,200 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2021-12-14 18:38:08,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:38:08,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136318503] [2021-12-14 18:38:08,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136318503] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:38:08,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:38:08,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:38:08,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490284963] [2021-12-14 18:38:08,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:38:08,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:38:08,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:38:08,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:38:08,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:38:08,202 INFO L87 Difference]: Start difference. First operand 14687 states and 20450 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 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 18:38:12,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:38:12,380 INFO L93 Difference]: Finished difference Result 29801 states and 41573 transitions. [2021-12-14 18:38:12,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-14 18:38:12,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 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 206 [2021-12-14 18:38:12,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:38:12,452 INFO L225 Difference]: With dead ends: 29801 [2021-12-14 18:38:12,452 INFO L226 Difference]: Without dead ends: 19886 [2021-12-14 18:38:12,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 65 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 18:38:12,492 INFO L933 BasicCegarLoop]: 3792 mSDtfsCounter, 2655 mSDsluCounter, 4177 mSDsCounter, 0 mSdLazyCounter, 2509 mSolverCounterSat, 1828 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2896 SdHoareTripleChecker+Valid, 7969 SdHoareTripleChecker+Invalid, 4337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1828 IncrementalHoareTripleChecker+Valid, 2509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-14 18:38:12,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2896 Valid, 7969 Invalid, 4337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1828 Valid, 2509 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-12-14 18:38:12,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19886 states. [2021-12-14 18:38:13,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19886 to 19484. [2021-12-14 18:38:13,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19484 states, 13590 states have (on average 1.2770419426048565) internal successors, (17355), 13980 states have internal predecessors, (17355), 4804 states have call successors, (4804), 1060 states have call predecessors, (4804), 1087 states have return successors, (4964), 4571 states have call predecessors, (4964), 4800 states have call successors, (4964) [2021-12-14 18:38:13,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19484 states to 19484 states and 27123 transitions. [2021-12-14 18:38:13,096 INFO L78 Accepts]: Start accepts. Automaton has 19484 states and 27123 transitions. Word has length 206 [2021-12-14 18:38:13,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:38:13,099 INFO L470 AbstractCegarLoop]: Abstraction has 19484 states and 27123 transitions. [2021-12-14 18:38:13,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 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 18:38:13,099 INFO L276 IsEmpty]: Start isEmpty. Operand 19484 states and 27123 transitions. [2021-12-14 18:38:13,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-12-14 18:38:13,105 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:38:13,105 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 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] [2021-12-14 18:38:13,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 18:38:13,106 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:38:13,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:38:13,106 INFO L85 PathProgramCache]: Analyzing trace with hash -786650282, now seen corresponding path program 1 times [2021-12-14 18:38:13,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:38:13,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748017787] [2021-12-14 18:38:13,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:38:13,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:38:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:38:13,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:13,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:38:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:13,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:38:13,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:38:13,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:38:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:13,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:38:13,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:13,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:38:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:38:13,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:38:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:13,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 18:38:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 18:38:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 18:38:13,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 18:38:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-14 18:38:13,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-14 18:38:13,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:38:13,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-14 18:38:13,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-14 18:38:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-14 18:38:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:13,536 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2021-12-14 18:38:13,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:38:13,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748017787] [2021-12-14 18:38:13,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748017787] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:38:13,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:38:13,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:38:13,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23184203] [2021-12-14 18:38:13,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:38:13,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:38:13,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:38:13,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:38:13,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:38:13,538 INFO L87 Difference]: Start difference. First operand 19484 states and 27123 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 18:38:15,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:38:15,604 INFO L93 Difference]: Finished difference Result 19862 states and 27725 transitions. [2021-12-14 18:38:15,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:38:15,605 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 197 [2021-12-14 18:38:15,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:38:15,665 INFO L225 Difference]: With dead ends: 19862 [2021-12-14 18:38:15,666 INFO L226 Difference]: Without dead ends: 19860 [2021-12-14 18:38:15,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 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 18:38:15,678 INFO L933 BasicCegarLoop]: 2033 mSDtfsCounter, 2176 mSDsluCounter, 4050 mSDsCounter, 0 mSdLazyCounter, 1594 mSolverCounterSat, 792 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2407 SdHoareTripleChecker+Valid, 6083 SdHoareTripleChecker+Invalid, 2386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 792 IncrementalHoareTripleChecker+Valid, 1594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-14 18:38:15,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2407 Valid, 6083 Invalid, 2386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [792 Valid, 1594 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-14 18:38:15,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19860 states. [2021-12-14 18:38:16,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19860 to 19488. [2021-12-14 18:38:16,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19488 states, 13593 states have (on average 1.2769807989406312) internal successors, (17358), 13983 states have internal predecessors, (17358), 4804 states have call successors, (4804), 1061 states have call predecessors, (4804), 1088 states have return successors, (4964), 4571 states have call predecessors, (4964), 4800 states have call successors, (4964) [2021-12-14 18:38:16,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19488 states to 19488 states and 27126 transitions. [2021-12-14 18:38:16,323 INFO L78 Accepts]: Start accepts. Automaton has 19488 states and 27126 transitions. Word has length 197 [2021-12-14 18:38:16,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:38:16,324 INFO L470 AbstractCegarLoop]: Abstraction has 19488 states and 27126 transitions. [2021-12-14 18:38:16,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 18:38:16,324 INFO L276 IsEmpty]: Start isEmpty. Operand 19488 states and 27126 transitions. [2021-12-14 18:38:16,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-12-14 18:38:16,329 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:38:16,330 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 9, 9, 9, 9, 9, 9, 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] [2021-12-14 18:38:16,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-14 18:38:16,330 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:38:16,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:38:16,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1602830158, now seen corresponding path program 1 times [2021-12-14 18:38:16,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:38:16,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511481002] [2021-12-14 18:38:16,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:38:16,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:38:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:38:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:16,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:38:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:16,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:38:16,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:16,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:38:16,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:38:16,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:38:16,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:16,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:38:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:38:16,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:16,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:38:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:16,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 18:38:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 18:38:16,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 18:38:16,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 18:38:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:38:16,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 18:38:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-14 18:38:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-14 18:38:16,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-14 18:38:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:16,577 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-12-14 18:38:16,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:38:16,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511481002] [2021-12-14 18:38:16,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511481002] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:38:16,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:38:16,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:38:16,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571514886] [2021-12-14 18:38:16,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:38:16,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:38:16,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:38:16,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:38:16,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:38:16,579 INFO L87 Difference]: Start difference. First operand 19488 states and 27126 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-14 18:38:22,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:38:22,459 INFO L93 Difference]: Finished difference Result 42013 states and 58320 transitions. [2021-12-14 18:38:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:38:22,460 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 195 [2021-12-14 18:38:22,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:38:22,635 INFO L225 Difference]: With dead ends: 42013 [2021-12-14 18:38:22,636 INFO L226 Difference]: Without dead ends: 22548 [2021-12-14 18:38:22,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-14 18:38:22,711 INFO L933 BasicCegarLoop]: 2521 mSDtfsCounter, 1631 mSDsluCounter, 3956 mSDsCounter, 0 mSdLazyCounter, 3105 mSolverCounterSat, 847 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1881 SdHoareTripleChecker+Valid, 6477 SdHoareTripleChecker+Invalid, 3952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 847 IncrementalHoareTripleChecker+Valid, 3105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:38:22,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1881 Valid, 6477 Invalid, 3952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [847 Valid, 3105 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2021-12-14 18:38:22,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22548 states. [2021-12-14 18:38:23,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22548 to 21872. [2021-12-14 18:38:23,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21872 states, 15514 states have (on average 1.2702720123759186) internal successors, (19707), 15895 states have internal predecessors, (19707), 5092 states have call successors, (5092), 1247 states have call predecessors, (5092), 1263 states have return successors, (5211), 4858 states have call predecessors, (5211), 5088 states have call successors, (5211) [2021-12-14 18:38:23,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21872 states to 21872 states and 30010 transitions. [2021-12-14 18:38:23,602 INFO L78 Accepts]: Start accepts. Automaton has 21872 states and 30010 transitions. Word has length 195 [2021-12-14 18:38:23,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:38:23,603 INFO L470 AbstractCegarLoop]: Abstraction has 21872 states and 30010 transitions. [2021-12-14 18:38:23,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-14 18:38:23,603 INFO L276 IsEmpty]: Start isEmpty. Operand 21872 states and 30010 transitions. [2021-12-14 18:38:23,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-12-14 18:38:23,607 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:38:23,607 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:38:23,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-14 18:38:23,608 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:38:23,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:38:23,608 INFO L85 PathProgramCache]: Analyzing trace with hash -2028223105, now seen corresponding path program 1 times [2021-12-14 18:38:23,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:38:23,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18071211] [2021-12-14 18:38:23,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:38:23,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:38:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:38:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:23,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:38:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:38:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:38:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:38:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:38:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:23,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:38:23,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:38:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:38:23,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 18:38:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 18:38:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 18:38:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 18:38:23,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-14 18:38:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-14 18:38:23,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:38:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-14 18:38:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-14 18:38:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-14 18:38:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-14 18:38:23,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:23,845 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2021-12-14 18:38:23,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:38:23,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18071211] [2021-12-14 18:38:23,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18071211] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:38:23,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:38:23,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:38:23,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518737902] [2021-12-14 18:38:23,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:38:23,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:38:23,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:38:23,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:38:23,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:38:23,848 INFO L87 Difference]: Start difference. First operand 21872 states and 30010 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-14 18:38:26,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:38:26,318 INFO L93 Difference]: Finished difference Result 22370 states and 30783 transitions. [2021-12-14 18:38:26,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:38:26,319 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 202 [2021-12-14 18:38:26,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:38:26,393 INFO L225 Difference]: With dead ends: 22370 [2021-12-14 18:38:26,393 INFO L226 Difference]: Without dead ends: 22368 [2021-12-14 18:38:26,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 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 18:38:26,409 INFO L933 BasicCegarLoop]: 2034 mSDtfsCounter, 2174 mSDsluCounter, 4051 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 790 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2406 SdHoareTripleChecker+Valid, 6085 SdHoareTripleChecker+Invalid, 2387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 790 IncrementalHoareTripleChecker+Valid, 1597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-14 18:38:26,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2406 Valid, 6085 Invalid, 2387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [790 Valid, 1597 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-14 18:38:26,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22368 states. [2021-12-14 18:38:27,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22368 to 21876. [2021-12-14 18:38:27,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21876 states, 15517 states have (on average 1.2702197589740285) internal successors, (19710), 15898 states have internal predecessors, (19710), 5092 states have call successors, (5092), 1248 states have call predecessors, (5092), 1264 states have return successors, (5211), 4858 states have call predecessors, (5211), 5088 states have call successors, (5211) [2021-12-14 18:38:27,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21876 states to 21876 states and 30013 transitions. [2021-12-14 18:38:27,364 INFO L78 Accepts]: Start accepts. Automaton has 21876 states and 30013 transitions. Word has length 202 [2021-12-14 18:38:27,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:38:27,364 INFO L470 AbstractCegarLoop]: Abstraction has 21876 states and 30013 transitions. [2021-12-14 18:38:27,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-14 18:38:27,365 INFO L276 IsEmpty]: Start isEmpty. Operand 21876 states and 30013 transitions. [2021-12-14 18:38:27,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-12-14 18:38:27,370 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:38:27,370 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:38:27,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-14 18:38:27,370 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:38:27,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:38:27,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1552987318, now seen corresponding path program 1 times [2021-12-14 18:38:27,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:38:27,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520097386] [2021-12-14 18:38:27,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:38:27,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:38:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:38:27,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:38:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:38:27,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:27,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:38:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:27,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:38:27,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:27,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:38:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:27,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:38:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:38:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:38:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 18:38:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 18:38:27,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 18:38:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 18:38:27,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-14 18:38:27,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-14 18:38:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:38:27,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-14 18:38:27,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-14 18:38:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-14 18:38:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-14 18:38:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-14 18:38:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:27,603 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2021-12-14 18:38:27,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:38:27,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520097386] [2021-12-14 18:38:27,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520097386] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:38:27,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:38:27,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:38:27,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096661359] [2021-12-14 18:38:27,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:38:27,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:38:27,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:38:27,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:38:27,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:38:27,606 INFO L87 Difference]: Start difference. First operand 21876 states and 30013 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-14 18:38:29,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:38:29,753 INFO L93 Difference]: Finished difference Result 22374 states and 30786 transitions. [2021-12-14 18:38:29,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:38:29,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 207 [2021-12-14 18:38:29,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:38:29,821 INFO L225 Difference]: With dead ends: 22374 [2021-12-14 18:38:29,821 INFO L226 Difference]: Without dead ends: 22372 [2021-12-14 18:38:29,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 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 18:38:29,835 INFO L933 BasicCegarLoop]: 2034 mSDtfsCounter, 2174 mSDsluCounter, 4051 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 789 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2406 SdHoareTripleChecker+Valid, 6085 SdHoareTripleChecker+Invalid, 2386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 789 IncrementalHoareTripleChecker+Valid, 1597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-14 18:38:29,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2406 Valid, 6085 Invalid, 2386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [789 Valid, 1597 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-14 18:38:29,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22372 states. [2021-12-14 18:38:30,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22372 to 21880. [2021-12-14 18:38:30,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21880 states, 15520 states have (on average 1.270167525773196) internal successors, (19713), 15901 states have internal predecessors, (19713), 5092 states have call successors, (5092), 1249 states have call predecessors, (5092), 1265 states have return successors, (5211), 4858 states have call predecessors, (5211), 5088 states have call successors, (5211) [2021-12-14 18:38:30,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21880 states to 21880 states and 30016 transitions. [2021-12-14 18:38:30,692 INFO L78 Accepts]: Start accepts. Automaton has 21880 states and 30016 transitions. Word has length 207 [2021-12-14 18:38:30,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:38:30,693 INFO L470 AbstractCegarLoop]: Abstraction has 21880 states and 30016 transitions. [2021-12-14 18:38:30,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-14 18:38:30,693 INFO L276 IsEmpty]: Start isEmpty. Operand 21880 states and 30016 transitions. [2021-12-14 18:38:30,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-12-14 18:38:30,699 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:38:30,699 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 6, 5, 5, 4, 4, 4, 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] [2021-12-14 18:38:30,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-14 18:38:30,700 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:38:30,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:38:30,700 INFO L85 PathProgramCache]: Analyzing trace with hash 64014239, now seen corresponding path program 1 times [2021-12-14 18:38:30,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:38:30,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181078807] [2021-12-14 18:38:30,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:38:30,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:38:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:38:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:38:30,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:38:30,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:30,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:38:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:38:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:38:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:38:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:30,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:38:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:30,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:38:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:30,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 18:38:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 18:38:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 18:38:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 18:38:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-14 18:38:30,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-14 18:38:30,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:38:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-14 18:38:30,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-14 18:38:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-14 18:38:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-14 18:38:30,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-14 18:38:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-14 18:38:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:30,972 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2021-12-14 18:38:30,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:38:30,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181078807] [2021-12-14 18:38:30,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181078807] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:38:30,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:38:30,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:38:30,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397854409] [2021-12-14 18:38:30,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:38:30,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:38:30,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:38:30,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:38:30,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:38:30,975 INFO L87 Difference]: Start difference. First operand 21880 states and 30016 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-14 18:38:33,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:38:33,317 INFO L93 Difference]: Finished difference Result 22378 states and 30789 transitions. [2021-12-14 18:38:33,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:38:33,318 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 212 [2021-12-14 18:38:33,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:38:33,378 INFO L225 Difference]: With dead ends: 22378 [2021-12-14 18:38:33,378 INFO L226 Difference]: Without dead ends: 22376 [2021-12-14 18:38:33,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 65 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 18:38:33,390 INFO L933 BasicCegarLoop]: 2031 mSDtfsCounter, 2176 mSDsluCounter, 4044 mSDsCounter, 0 mSdLazyCounter, 1594 mSolverCounterSat, 789 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2409 SdHoareTripleChecker+Valid, 6075 SdHoareTripleChecker+Invalid, 2383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 789 IncrementalHoareTripleChecker+Valid, 1594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-14 18:38:33,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2409 Valid, 6075 Invalid, 2383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [789 Valid, 1594 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-14 18:38:33,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22376 states. [2021-12-14 18:38:34,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22376 to 21884. [2021-12-14 18:38:34,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21884 states, 15523 states have (on average 1.2701153127617084) internal successors, (19716), 15904 states have internal predecessors, (19716), 5092 states have call successors, (5092), 1250 states have call predecessors, (5092), 1266 states have return successors, (5211), 4858 states have call predecessors, (5211), 5088 states have call successors, (5211) [2021-12-14 18:38:34,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21884 states to 21884 states and 30019 transitions. [2021-12-14 18:38:34,326 INFO L78 Accepts]: Start accepts. Automaton has 21884 states and 30019 transitions. Word has length 212 [2021-12-14 18:38:34,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:38:34,326 INFO L470 AbstractCegarLoop]: Abstraction has 21884 states and 30019 transitions. [2021-12-14 18:38:34,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-14 18:38:34,327 INFO L276 IsEmpty]: Start isEmpty. Operand 21884 states and 30019 transitions. [2021-12-14 18:38:34,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-12-14 18:38:34,333 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:38:34,343 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 7, 6, 6, 4, 4, 4, 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] [2021-12-14 18:38:34,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-14 18:38:34,355 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:38:34,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:38:34,356 INFO L85 PathProgramCache]: Analyzing trace with hash 696399382, now seen corresponding path program 1 times [2021-12-14 18:38:34,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:38:34,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674561193] [2021-12-14 18:38:34,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:38:34,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:38:34,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:38:34,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:38:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:34,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:38:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:38:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:38:34,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:38:34,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:34,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:38:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:38:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:38:34,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:34,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 18:38:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 18:38:34,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 18:38:34,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 18:38:34,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-14 18:38:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:34,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-14 18:38:34,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:38:34,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-14 18:38:34,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-14 18:38:34,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-14 18:38:34,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-14 18:38:34,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-14 18:38:34,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-14 18:38:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-14 18:38:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:34,640 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2021-12-14 18:38:34,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:38:34,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674561193] [2021-12-14 18:38:34,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674561193] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:38:34,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:38:34,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:38:34,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523158073] [2021-12-14 18:38:34,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:38:34,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:38:34,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:38:34,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:38:34,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:38:34,642 INFO L87 Difference]: Start difference. First operand 21884 states and 30019 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-14 18:38:37,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:38:37,516 INFO L93 Difference]: Finished difference Result 23780 states and 32304 transitions. [2021-12-14 18:38:37,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-14 18:38:37,517 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 217 [2021-12-14 18:38:37,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:38:37,594 INFO L225 Difference]: With dead ends: 23780 [2021-12-14 18:38:37,594 INFO L226 Difference]: Without dead ends: 23778 [2021-12-14 18:38:37,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 67 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 18:38:37,612 INFO L933 BasicCegarLoop]: 2055 mSDtfsCounter, 2001 mSDsluCounter, 4397 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 794 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2218 SdHoareTripleChecker+Valid, 6452 SdHoareTripleChecker+Invalid, 2645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 794 IncrementalHoareTripleChecker+Valid, 1851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:38:37,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2218 Valid, 6452 Invalid, 2645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [794 Valid, 1851 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-14 18:38:37,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23778 states. [2021-12-14 18:38:38,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23778 to 23187. [2021-12-14 18:38:38,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23187 states, 16405 states have (on average 1.2605303261200853) internal successors, (20679), 16795 states have internal predecessors, (20679), 5305 states have call successors, (5305), 1458 states have call predecessors, (5305), 1474 states have return successors, (5424), 5071 states have call predecessors, (5424), 5301 states have call successors, (5424) [2021-12-14 18:38:38,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23187 states to 23187 states and 31408 transitions. [2021-12-14 18:38:38,600 INFO L78 Accepts]: Start accepts. Automaton has 23187 states and 31408 transitions. Word has length 217 [2021-12-14 18:38:38,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:38:38,601 INFO L470 AbstractCegarLoop]: Abstraction has 23187 states and 31408 transitions. [2021-12-14 18:38:38,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-14 18:38:38,601 INFO L276 IsEmpty]: Start isEmpty. Operand 23187 states and 31408 transitions. [2021-12-14 18:38:38,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-12-14 18:38:38,608 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:38:38,609 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 8, 7, 7, 4, 4, 4, 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] [2021-12-14 18:38:38,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-14 18:38:38,609 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:38:38,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:38:38,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1790136767, now seen corresponding path program 1 times [2021-12-14 18:38:38,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:38:38,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783733170] [2021-12-14 18:38:38,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:38:38,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:38:38,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:38:38,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:38,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:38:38,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:38,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:38:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:38,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:38:38,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:38,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:38:38,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:38,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:38:38,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:38:38,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:38:38,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:38,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:38:38,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:38,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 18:38:38,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 18:38:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 18:38:38,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 18:38:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-14 18:38:38,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:38,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-14 18:38:38,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:38:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-14 18:38:38,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-14 18:38:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-14 18:38:38,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-14 18:38:38,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-14 18:38:38,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-14 18:38:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-14 18:38:38,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-14 18:38:38,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:38,861 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2021-12-14 18:38:38,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:38:38,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783733170] [2021-12-14 18:38:38,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783733170] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:38:38,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:38:38,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:38:38,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861612670] [2021-12-14 18:38:38,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:38:38,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:38:38,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:38:38,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:38:38,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:38:38,863 INFO L87 Difference]: Start difference. First operand 23187 states and 31408 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-14 18:38:41,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:38:41,345 INFO L93 Difference]: Finished difference Result 23784 states and 32307 transitions. [2021-12-14 18:38:41,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:38:41,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 222 [2021-12-14 18:38:41,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:38:41,414 INFO L225 Difference]: With dead ends: 23784 [2021-12-14 18:38:41,415 INFO L226 Difference]: Without dead ends: 23782 [2021-12-14 18:38:41,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 69 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 18:38:41,428 INFO L933 BasicCegarLoop]: 2034 mSDtfsCounter, 2174 mSDsluCounter, 4051 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 786 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2406 SdHoareTripleChecker+Valid, 6085 SdHoareTripleChecker+Invalid, 2383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 786 IncrementalHoareTripleChecker+Valid, 1597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-14 18:38:41,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2406 Valid, 6085 Invalid, 2383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [786 Valid, 1597 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-14 18:38:41,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23782 states. [2021-12-14 18:38:42,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23782 to 23191. [2021-12-14 18:38:42,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23191 states, 16408 states have (on average 1.2604826913700633) internal successors, (20682), 16798 states have internal predecessors, (20682), 5305 states have call successors, (5305), 1459 states have call predecessors, (5305), 1475 states have return successors, (5424), 5071 states have call predecessors, (5424), 5301 states have call successors, (5424) [2021-12-14 18:38:42,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23191 states to 23191 states and 31411 transitions. [2021-12-14 18:38:42,356 INFO L78 Accepts]: Start accepts. Automaton has 23191 states and 31411 transitions. Word has length 222 [2021-12-14 18:38:42,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:38:42,357 INFO L470 AbstractCegarLoop]: Abstraction has 23191 states and 31411 transitions. [2021-12-14 18:38:42,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-14 18:38:42,358 INFO L276 IsEmpty]: Start isEmpty. Operand 23191 states and 31411 transitions. [2021-12-14 18:38:42,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-14 18:38:42,364 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:38:42,365 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 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] [2021-12-14 18:38:42,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-14 18:38:42,365 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:38:42,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:38:42,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1937452918, now seen corresponding path program 1 times [2021-12-14 18:38:42,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:38:42,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602098416] [2021-12-14 18:38:42,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:38:42,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:38:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:38:42,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:42,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:38:42,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:42,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:38:42,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:38:42,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:38:42,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:38:42,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:38:42,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:42,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:38:42,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:38:42,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 18:38:42,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 18:38:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 18:38:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 18:38:42,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-14 18:38:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:42,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-14 18:38:42,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:38:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-14 18:38:42,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-14 18:38:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-14 18:38:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-14 18:38:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-14 18:38:42,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-14 18:38:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-14 18:38:42,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-14 18:38:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:42,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-14 18:38:42,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat