./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-wireless-ipw2x00-ipw2100.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a086565-e38a-415d-abfc-e3ce23fd4cb7/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a086565-e38a-415d-abfc-e3ce23fd4cb7/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a086565-e38a-415d-abfc-e3ce23fd4cb7/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a086565-e38a-415d-abfc-e3ce23fd4cb7/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a086565-e38a-415d-abfc-e3ce23fd4cb7/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a086565-e38a-415d-abfc-e3ce23fd4cb7/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c0c438f99a824e3d15e4313dc5ea51e50cfc55cdb2cc6e49c87ebde175ff530e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:54:11,580 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:54:11,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:54:11,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:54:11,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:54:11,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:54:11,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:54:11,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:54:11,609 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:54:11,610 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:54:11,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:54:11,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:54:11,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:54:11,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:54:11,616 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:54:11,617 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:54:11,617 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:54:11,618 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:54:11,620 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:54:11,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:54:11,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:54:11,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:54:11,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:54:11,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:54:11,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:54:11,635 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:54:11,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:54:11,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:54:11,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:54:11,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:54:11,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:54:11,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:54:11,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:54:11,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:54:11,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:54:11,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:54:11,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:54:11,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:54:11,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:54:11,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:54:11,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:54:11,659 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a086565-e38a-415d-abfc-e3ce23fd4cb7/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:54:11,699 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:54:11,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:54:11,700 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:54:11,700 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:54:11,701 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:54:11,701 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:54:11,701 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:54:11,701 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:54:11,702 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:54:11,702 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:54:11,703 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:54:11,703 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:54:11,703 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:54:11,703 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:54:11,703 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:54:11,704 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:54:11,704 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:54:11,704 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:54:11,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:54:11,705 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:54:11,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:54:11,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:54:11,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:54:11,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:54:11,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:54:11,706 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:54:11,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:54:11,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:54:11,707 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:54:11,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:54:11,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:54:11,708 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:54:11,708 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:54:11,708 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:54:11,708 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:54:11,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:54:11,709 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:54:11,709 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:54:11,709 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a086565-e38a-415d-abfc-e3ce23fd4cb7/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a086565-e38a-415d-abfc-e3ce23fd4cb7/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0c438f99a824e3d15e4313dc5ea51e50cfc55cdb2cc6e49c87ebde175ff530e [2022-11-23 14:54:12,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:54:12,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:54:12,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:54:12,103 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:54:12,105 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:54:12,107 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a086565-e38a-415d-abfc-e3ce23fd4cb7/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2022-11-23 14:54:15,130 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:54:16,074 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:54:16,075 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a086565-e38a-415d-abfc-e3ce23fd4cb7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2022-11-23 14:54:16,146 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a086565-e38a-415d-abfc-e3ce23fd4cb7/bin/utaipan-Q6hlc19bkW/data/3a9f4c6e6/0b5bfafa4735442da45094adea62a27f/FLAGe25203337 [2022-11-23 14:54:16,164 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a086565-e38a-415d-abfc-e3ce23fd4cb7/bin/utaipan-Q6hlc19bkW/data/3a9f4c6e6/0b5bfafa4735442da45094adea62a27f [2022-11-23 14:54:16,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:54:16,171 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:54:16,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:54:16,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:54:16,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:54:16,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:54:16" (1/1) ... [2022-11-23 14:54:16,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23afa450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:16, skipping insertion in model container [2022-11-23 14:54:16,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:54:16" (1/1) ... [2022-11-23 14:54:16,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:54:16,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:54:23,703 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a086565-e38a-415d-abfc-e3ce23fd4cb7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i[789335,789348] [2022-11-23 14:54:23,708 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a086565-e38a-415d-abfc-e3ce23fd4cb7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i[789504,789517] [2022-11-23 14:54:23,709 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a086565-e38a-415d-abfc-e3ce23fd4cb7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i[789671,789684] [2022-11-23 14:54:23,709 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a086565-e38a-415d-abfc-e3ce23fd4cb7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i[789839,789852] [2022-11-23 14:54:23,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:54:23,869 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:54:24,619 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a086565-e38a-415d-abfc-e3ce23fd4cb7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i[789335,789348] [2022-11-23 14:54:24,619 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a086565-e38a-415d-abfc-e3ce23fd4cb7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i[789504,789517] [2022-11-23 14:54:24,620 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a086565-e38a-415d-abfc-e3ce23fd4cb7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i[789671,789684] [2022-11-23 14:54:24,620 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a086565-e38a-415d-abfc-e3ce23fd4cb7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i[789839,789852] [2022-11-23 14:54:24,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:54:25,049 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:54:25,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:25 WrapperNode [2022-11-23 14:54:25,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:54:25,052 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:54:25,052 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:54:25,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:54:25,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:25" (1/1) ... [2022-11-23 14:54:25,423 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:25" (1/1) ... [2022-11-23 14:54:25,976 INFO L138 Inliner]: procedures = 738, calls = 11858, calls flagged for inlining = 334, calls inlined = 253, statements flattened = 12820 [2022-11-23 14:54:25,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:54:25,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:54:25,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:54:25,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:54:25,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:25" (1/1) ... [2022-11-23 14:54:25,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:25" (1/1) ... [2022-11-23 14:54:26,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:25" (1/1) ... [2022-11-23 14:54:26,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:25" (1/1) ... [2022-11-23 14:54:26,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:25" (1/1) ... [2022-11-23 14:54:26,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:25" (1/1) ... [2022-11-23 14:54:26,584 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:25" (1/1) ... [2022-11-23 14:54:26,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:25" (1/1) ... [2022-11-23 14:54:26,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:54:26,805 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:54:26,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:54:26,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:54:26,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:25" (1/1) ... [2022-11-23 14:54:26,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:54:26,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a086565-e38a-415d-abfc-e3ce23fd4cb7/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:54:26,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a086565-e38a-415d-abfc-e3ce23fd4cb7/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:54:26,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a086565-e38a-415d-abfc-e3ce23fd4cb7/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:54:26,996 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-23 14:54:26,996 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-23 14:54:26,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 14:54:26,997 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 14:54:26,997 INFO L130 BoogieDeclarations]: Found specification of procedure read_register [2022-11-23 14:54:26,997 INFO L138 BoogieDeclarations]: Found implementation of procedure read_register [2022-11-23 14:54:26,997 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_send_data [2022-11-23 14:54:26,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_send_data [2022-11-23 14:54:26,998 INFO L130 BoogieDeclarations]: Found specification of procedure write_register_byte [2022-11-23 14:54:26,998 INFO L138 BoogieDeclarations]: Found implementation of procedure write_register_byte [2022-11-23 14:54:26,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 14:54:26,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 14:54:26,998 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-23 14:54:26,998 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-23 14:54:26,999 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-11-23 14:54:26,999 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-11-23 14:54:26,999 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_release_firmware [2022-11-23 14:54:26,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_release_firmware [2022-11-23 14:54:26,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_78 [2022-11-23 14:54:27,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_78 [2022-11-23 14:54:27,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-23 14:54:27,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-23 14:54:27,000 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_configure_security [2022-11-23 14:54:27,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_configure_security [2022-11-23 14:54:27,000 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-23 14:54:27,001 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-23 14:54:27,001 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-23 14:54:27,001 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-23 14:54:27,001 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_reset_adapter [2022-11-23 14:54:27,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_reset_adapter [2022-11-23 14:54:27,002 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_security_information [2022-11-23 14:54:27,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_security_information [2022-11-23 14:54:27,002 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-23 14:54:27,002 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-23 14:54:27,002 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-23 14:54:27,002 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-23 14:54:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-23 14:54:27,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-23 14:54:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-23 14:54:27,003 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-23 14:54:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-23 14:54:27,003 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-23 14:54:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_mandatory_bssid [2022-11-23 14:54:27,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_mandatory_bssid [2022-11-23 14:54:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 14:54:27,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 14:54:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_rfkill_set_hw_state [2022-11-23 14:54:27,004 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_rfkill_set_hw_state [2022-11-23 14:54:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_unregister [2022-11-23 14:54:27,005 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_unregister [2022-11-23 14:54:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_disable_adapter [2022-11-23 14:54:27,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_disable_adapter [2022-11-23 14:54:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-23 14:54:27,005 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-23 14:54:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:54:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_send_command [2022-11-23 14:54:27,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_send_command [2022-11-23 14:54:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-23 14:54:27,006 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-23 14:54:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_word [2022-11-23 14:54:27,007 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_word [2022-11-23 14:54:27,007 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-23 14:54:27,007 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-23 14:54:27,007 INFO L130 BoogieDeclarations]: Found specification of procedure isr_scan_complete [2022-11-23 14:54:27,007 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_scan_complete [2022-11-23 14:54:27,007 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_power_mode [2022-11-23 14:54:27,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_power_mode [2022-11-23 14:54:27,008 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-23 14:54:27,023 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-23 14:54:27,023 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_byte [2022-11-23 14:54:27,023 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_byte [2022-11-23 14:54:27,024 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2022-11-23 14:54:27,024 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2022-11-23 14:54:27,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 14:54:27,024 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-23 14:54:27,024 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-23 14:54:27,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-23 14:54:27,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-23 14:54:27,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 14:54:27,025 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_dword [2022-11-23 14:54:27,025 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_dword [2022-11-23 14:54:27,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-23 14:54:27,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-23 14:54:27,026 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_channel [2022-11-23 14:54:27,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_channel [2022-11-23 14:54:27,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:54:27,026 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-23 14:54:27,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-23 14:54:27,026 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_up [2022-11-23 14:54:27,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_up [2022-11-23 14:54:27,027 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_send_commands [2022-11-23 14:54:27,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_send_commands [2022-11-23 14:54:27,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 14:54:27,027 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 14:54:27,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-23 14:54:27,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-23 14:54:27,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-23 14:54:27,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-23 14:54:27,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-23 14:54:27,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-23 14:54:27,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipw2100_exit_18_2 [2022-11-23 14:54:27,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipw2100_exit_18_2 [2022-11-23 14:54:27,028 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-23 14:54:27,028 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-23 14:54:27,028 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-23 14:54:27,029 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-23 14:54:27,029 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_enable_adapter [2022-11-23 14:54:27,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_enable_adapter [2022-11-23 14:54:27,029 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-23 14:54:27,029 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-23 14:54:27,029 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_scan_options [2022-11-23 14:54:27,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_scan_options [2022-11-23 14:54:27,029 INFO L130 BoogieDeclarations]: Found specification of procedure libipw_txb_free [2022-11-23 14:54:27,030 INFO L138 BoogieDeclarations]: Found implementation of procedure libipw_txb_free [2022-11-23 14:54:27,030 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_reset_fatalerror [2022-11-23 14:54:27,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_reset_fatalerror [2022-11-23 14:54:27,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-23 14:54:27,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-23 14:54:27,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:54:27,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-23 14:54:27,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-23 14:54:27,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-23 14:54:27,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-23 14:54:27,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:54:27,031 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_tx_rates [2022-11-23 14:54:27,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_tx_rates [2022-11-23 14:54:27,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 14:54:27,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 14:54:27,032 INFO L130 BoogieDeclarations]: Found specification of procedure print_ssid [2022-11-23 14:54:27,032 INFO L138 BoogieDeclarations]: Found implementation of procedure print_ssid [2022-11-23 14:54:27,032 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 14:54:27,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 14:54:27,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:54:27,033 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-23 14:54:27,033 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-23 14:54:27,033 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 14:54:27,033 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_snapshot_free [2022-11-23 14:54:27,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_snapshot_free [2022-11-23 14:54:27,034 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 14:54:27,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 14:54:27,034 INFO L130 BoogieDeclarations]: Found specification of procedure snprint_line [2022-11-23 14:54:27,034 INFO L138 BoogieDeclarations]: Found implementation of procedure snprint_line [2022-11-23 14:54:27,034 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-23 14:54:27,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-23 14:54:27,034 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_reset [2022-11-23 14:54:27,035 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_reset [2022-11-23 14:54:27,035 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-23 14:54:27,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-23 14:54:27,035 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-23 14:54:27,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-23 14:54:27,035 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-23 14:54:27,036 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-23 14:54:27,036 INFO L130 BoogieDeclarations]: Found specification of procedure sw_reset_and_clock [2022-11-23 14:54:27,036 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_reset_and_clock [2022-11-23 14:54:27,036 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_enable_interrupts [2022-11-23 14:54:27,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_enable_interrupts [2022-11-23 14:54:27,036 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-23 14:54:27,036 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-23 14:54:27,037 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_resume [2022-11-23 14:54:27,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_resume [2022-11-23 14:54:27,037 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-11-23 14:54:27,037 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-11-23 14:54:27,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:54:27,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:54:27,038 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2022-11-23 14:54:27,038 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2022-11-23 14:54:27,038 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_pci_remove_one [2022-11-23 14:54:27,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_pci_remove_one [2022-11-23 14:54:27,038 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_free [2022-11-23 14:54:27,038 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_free [2022-11-23 14:54:27,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-23 14:54:27,039 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-23 14:54:27,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 14:54:27,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 14:54:27,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 14:54:27,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 14:54:27,039 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_alloc_skb [2022-11-23 14:54:27,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_alloc_skb [2022-11-23 14:54:27,040 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-23 14:54:27,040 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-23 14:54:27,040 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_get_ordinal [2022-11-23 14:54:27,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_get_ordinal [2022-11-23 14:54:27,040 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_stop_adapter [2022-11-23 14:54:27,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_stop_adapter [2022-11-23 14:54:27,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-23 14:54:27,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-23 14:54:27,041 INFO L130 BoogieDeclarations]: Found specification of procedure write_register [2022-11-23 14:54:27,041 INFO L138 BoogieDeclarations]: Found implementation of procedure write_register [2022-11-23 14:54:27,041 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_set_gpio [2022-11-23 14:54:27,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_set_gpio [2022-11-23 14:54:27,042 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-23 14:54:27,050 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-23 14:54:27,050 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_down [2022-11-23 14:54:27,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_down [2022-11-23 14:54:27,050 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_close [2022-11-23 14:54:27,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_close [2022-11-23 14:54:27,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_low_lock_of_ipw2100_priv [2022-11-23 14:54:27,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_low_lock_of_ipw2100_priv [2022-11-23 14:54:27,051 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_wait_for_card_state [2022-11-23 14:54:27,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_wait_for_card_state [2022-11-23 14:54:27,051 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_rf_kill [2022-11-23 14:54:27,052 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_rf_kill [2022-11-23 14:54:27,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-23 14:54:27,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-23 14:54:27,052 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-23 14:54:27,052 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-23 14:54:27,052 INFO L130 BoogieDeclarations]: Found specification of procedure read_register_byte [2022-11-23 14:54:27,052 INFO L138 BoogieDeclarations]: Found implementation of procedure read_register_byte [2022-11-23 14:54:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure status_queue_free [2022-11-23 14:54:27,053 INFO L138 BoogieDeclarations]: Found implementation of procedure status_queue_free [2022-11-23 14:54:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-23 14:54:27,053 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-23 14:54:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:54:27,053 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:54:27,054 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-23 14:54:27,054 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-23 14:54:27,054 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_rx_free [2022-11-23 14:54:27,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_rx_free [2022-11-23 14:54:27,054 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-23 14:54:27,054 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-23 14:54:27,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-23 14:54:27,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-23 14:54:27,055 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-23 14:54:27,055 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-23 14:54:27,055 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-23 14:54:27,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-23 14:54:27,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:54:27,056 INFO L130 BoogieDeclarations]: Found specification of procedure mod_delayed_work [2022-11-23 14:54:27,056 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_delayed_work [2022-11-23 14:54:27,056 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-23 14:54:27,056 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-23 14:54:27,056 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_shutdown [2022-11-23 14:54:27,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_shutdown [2022-11-23 14:54:27,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:54:27,057 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_word [2022-11-23 14:54:27,057 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_word [2022-11-23 14:54:27,057 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_association_lost [2022-11-23 14:54:27,057 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_association_lost [2022-11-23 14:54:27,057 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_free [2022-11-23 14:54:27,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_free [2022-11-23 14:54:27,058 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_mac_address [2022-11-23 14:54:27,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_mac_address [2022-11-23 14:54:27,058 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_essid [2022-11-23 14:54:27,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_essid [2022-11-23 14:54:27,058 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-23 14:54:27,058 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-23 14:54:27,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 14:54:27,059 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_disable_interrupts [2022-11-23 14:54:27,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_disable_interrupts [2022-11-23 14:54:27,059 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-23 14:54:27,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-23 14:54:27,059 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_rts_threshold [2022-11-23 14:54:27,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_rts_threshold [2022-11-23 14:54:27,060 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_byte [2022-11-23 14:54:27,060 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_byte [2022-11-23 14:54:27,060 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-23 14:54:27,075 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-23 14:54:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-23 14:54:27,075 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-23 14:54:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure free_libipw [2022-11-23 14:54:27,076 INFO L138 BoogieDeclarations]: Found implementation of procedure free_libipw [2022-11-23 14:54:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-23 14:54:27,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-23 14:54:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-23 14:54:27,076 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-23 14:54:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-23 14:54:27,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-23 14:54:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_msg_free [2022-11-23 14:54:27,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_msg_free [2022-11-23 14:54:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure printk_buf [2022-11-23 14:54:27,077 INFO L138 BoogieDeclarations]: Found implementation of procedure printk_buf [2022-11-23 14:54:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure ipw_ethtool_get_drvinfo [2022-11-23 14:54:27,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw_ethtool_get_drvinfo [2022-11-23 14:54:27,078 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-23 14:54:27,078 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-23 14:54:27,078 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_tx_power [2022-11-23 14:54:27,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_tx_power [2022-11-23 14:54:27,078 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-23 14:54:27,078 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-23 14:54:27,079 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-11-23 14:54:27,079 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-11-23 14:54:27,079 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-23 14:54:27,079 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-23 14:54:27,079 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-11-23 14:54:27,079 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-11-23 14:54:27,079 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_system_config [2022-11-23 14:54:27,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_system_config [2022-11-23 14:54:27,080 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_kill_works [2022-11-23 14:54:27,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_kill_works [2022-11-23 14:54:27,080 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2022-11-23 14:54:27,080 INFO L138 BoogieDeclarations]: Found implementation of procedure strnlen [2022-11-23 14:54:27,080 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 14:54:27,080 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 14:54:27,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:54:27,081 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_queues_free [2022-11-23 14:54:27,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_queues_free [2022-11-23 14:54:27,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 14:54:27,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 14:54:27,081 INFO L130 BoogieDeclarations]: Found specification of procedure rf_kill_active [2022-11-23 14:54:27,081 INFO L138 BoogieDeclarations]: Found implementation of procedure rf_kill_active [2022-11-23 14:54:27,082 INFO L130 BoogieDeclarations]: Found specification of procedure get_seconds [2022-11-23 14:54:27,082 INFO L138 BoogieDeclarations]: Found implementation of procedure get_seconds [2022-11-23 14:54:27,082 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-23 14:54:27,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-23 14:54:27,082 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_allocate [2022-11-23 14:54:27,082 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_allocate [2022-11-23 14:54:27,083 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-23 14:54:27,083 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-23 14:54:27,083 INFO L130 BoogieDeclarations]: Found specification of procedure libipw_priv [2022-11-23 14:54:27,083 INFO L138 BoogieDeclarations]: Found implementation of procedure libipw_priv [2022-11-23 14:54:27,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_91 [2022-11-23 14:54:27,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_91 [2022-11-23 14:54:27,083 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-23 14:54:27,084 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-23 14:54:27,084 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-23 14:54:27,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-23 14:54:27,084 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_timeout [2022-11-23 14:54:27,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_timeout [2022-11-23 14:54:27,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-23 14:54:27,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-23 14:54:27,085 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-23 14:54:27,085 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-23 14:54:27,085 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-23 14:54:27,085 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-23 14:54:27,085 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-23 14:54:27,085 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-23 14:54:27,085 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-23 14:54:27,086 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-23 14:54:27,086 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_open [2022-11-23 14:54:27,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_open [2022-11-23 14:54:27,086 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-23 14:54:27,086 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-23 14:54:27,086 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_queues_initialize [2022-11-23 14:54:27,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_queues_initialize [2022-11-23 14:54:27,087 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-23 14:54:27,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_low_lock_of_ipw2100_priv [2022-11-23 14:54:27,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_low_lock_of_ipw2100_priv [2022-11-23 14:54:27,087 INFO L130 BoogieDeclarations]: Found specification of procedure pm_qos_update_request [2022-11-23 14:54:27,087 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_qos_update_request [2022-11-23 14:54:27,087 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_associated [2022-11-23 14:54:27,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_associated [2022-11-23 14:54:27,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:54:27,088 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_scanning [2022-11-23 14:54:27,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_scanning [2022-11-23 14:54:27,088 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_dword [2022-11-23 14:54:27,088 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_dword [2022-11-23 14:54:27,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-23 14:54:27,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-23 14:54:27,089 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-23 14:54:27,089 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-23 14:54:27,089 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_initialize [2022-11-23 14:54:27,089 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_initialize [2022-11-23 14:54:27,089 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_start_scan [2022-11-23 14:54:27,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_start_scan [2022-11-23 14:54:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-23 14:54:27,090 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-23 14:54:28,595 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:54:28,601 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:54:40,823 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 14:56:43,025 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-23 14:56:43,178 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:56:46,295 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:56:46,296 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-23 14:56:46,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:56:46 BoogieIcfgContainer [2022-11-23 14:56:46,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:56:46,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:56:46,306 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:56:46,309 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:56:46,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:54:16" (1/3) ... [2022-11-23 14:56:46,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77106fb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:56:46, skipping insertion in model container [2022-11-23 14:56:46,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:25" (2/3) ... [2022-11-23 14:56:46,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77106fb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:56:46, skipping insertion in model container [2022-11-23 14:56:46,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:56:46" (3/3) ... [2022-11-23 14:56:46,312 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2022-11-23 14:56:46,332 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:56:46,333 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-23 14:56:46,435 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:56:46,442 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@eb18bd2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:56:46,442 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-23 14:56:46,458 INFO L276 IsEmpty]: Start isEmpty. Operand has 2846 states, 1780 states have (on average 1.3432584269662922) internal successors, (2391), 1797 states have internal predecessors, (2391), 895 states have call successors, (895), 169 states have call predecessors, (895), 168 states have return successors, (889), 887 states have call predecessors, (889), 889 states have call successors, (889) [2022-11-23 14:56:46,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-23 14:56:46,483 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:56:46,484 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:56:46,485 INFO L420 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)] === [2022-11-23 14:56:46,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:56:46,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1857134087, now seen corresponding path program 1 times [2022-11-23 14:56:46,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:56:46,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598196513] [2022-11-23 14:56:46,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:56:46,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:56:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:56:48,750 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2022-11-23 14:56:48,751 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:56:48,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598196513] [2022-11-23 14:56:48,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598196513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:56:48,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:56:48,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:56:48,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896389625] [2022-11-23 14:56:48,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:56:48,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:56:48,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:56:48,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:56:48,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:56:48,805 INFO L87 Difference]: Start difference. First operand has 2846 states, 1780 states have (on average 1.3432584269662922) internal successors, (2391), 1797 states have internal predecessors, (2391), 895 states have call successors, (895), 169 states have call predecessors, (895), 168 states have return successors, (889), 887 states have call predecessors, (889), 889 states have call successors, (889) Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-23 14:56:54,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:56:56,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:00,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:06,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:10,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:12,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:13,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:57:13,763 INFO L93 Difference]: Finished difference Result 8043 states and 12008 transitions. [2022-11-23 14:57:13,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:57:13,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (21), 2 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 180 [2022-11-23 14:57:13,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:57:13,816 INFO L225 Difference]: With dead ends: 8043 [2022-11-23 14:57:13,816 INFO L226 Difference]: Without dead ends: 5215 [2022-11-23 14:57:13,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:57:13,852 INFO L413 NwaCegarLoop]: 4562 mSDtfsCounter, 3511 mSDsluCounter, 3770 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3514 SdHoareTripleChecker+Valid, 8332 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:57:13,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3514 Valid, 8332 Invalid, 733 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 722 Invalid, 4 Unknown, 0 Unchecked, 24.5s Time] [2022-11-23 14:57:13,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5215 states. [2022-11-23 14:57:14,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5215 to 5184. [2022-11-23 14:57:14,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5184 states, 3250 states have (on average 1.3393846153846154) internal successors, (4353), 3290 states have internal predecessors, (4353), 1617 states have call successors, (1617), 317 states have call predecessors, (1617), 314 states have return successors, (1616), 1600 states have call predecessors, (1616), 1613 states have call successors, (1616) [2022-11-23 14:57:14,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5184 states to 5184 states and 7586 transitions. [2022-11-23 14:57:14,328 INFO L78 Accepts]: Start accepts. Automaton has 5184 states and 7586 transitions. Word has length 180 [2022-11-23 14:57:14,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:57:14,333 INFO L495 AbstractCegarLoop]: Abstraction has 5184 states and 7586 transitions. [2022-11-23 14:57:14,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-23 14:57:14,334 INFO L276 IsEmpty]: Start isEmpty. Operand 5184 states and 7586 transitions. [2022-11-23 14:57:14,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-23 14:57:14,347 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:57:14,347 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:57:14,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:57:14,348 INFO L420 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)] === [2022-11-23 14:57:14,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:57:14,349 INFO L85 PathProgramCache]: Analyzing trace with hash 614168366, now seen corresponding path program 1 times [2022-11-23 14:57:14,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:57:14,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627150017] [2022-11-23 14:57:14,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:57:14,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:57:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:57:15,537 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 995 trivial. 0 not checked. [2022-11-23 14:57:15,538 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:57:15,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627150017] [2022-11-23 14:57:15,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627150017] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:57:15,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:57:15,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:57:15,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678447720] [2022-11-23 14:57:15,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:57:15,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:57:15,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:57:15,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:57:15,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:57:15,541 INFO L87 Difference]: Start difference. First operand 5184 states and 7586 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-23 14:57:23,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:25,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:57:30,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:32,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:34,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:36,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:39,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:40,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:57:40,809 INFO L93 Difference]: Finished difference Result 15015 states and 21950 transitions. [2022-11-23 14:57:40,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:57:40,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 185 [2022-11-23 14:57:40,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:57:40,894 INFO L225 Difference]: With dead ends: 15015 [2022-11-23 14:57:40,894 INFO L226 Difference]: Without dead ends: 9864 [2022-11-23 14:57:40,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:57:40,932 INFO L413 NwaCegarLoop]: 4548 mSDtfsCounter, 3458 mSDsluCounter, 3742 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 13 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3461 SdHoareTripleChecker+Valid, 8290 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:57:40,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3461 Valid, 8290 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 758 Invalid, 4 Unknown, 0 Unchecked, 24.8s Time] [2022-11-23 14:57:40,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9864 states. [2022-11-23 14:57:41,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9864 to 9859. [2022-11-23 14:57:41,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9859 states, 6197 states have (on average 1.3366144908826851) internal successors, (8283), 6270 states have internal predecessors, (8283), 3048 states have call successors, (3048), 616 states have call predecessors, (3048), 611 states have return successors, (3053), 3020 states have call predecessors, (3053), 3044 states have call successors, (3053) [2022-11-23 14:57:41,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9859 states to 9859 states and 14384 transitions. [2022-11-23 14:57:41,592 INFO L78 Accepts]: Start accepts. Automaton has 9859 states and 14384 transitions. Word has length 185 [2022-11-23 14:57:41,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:57:41,593 INFO L495 AbstractCegarLoop]: Abstraction has 9859 states and 14384 transitions. [2022-11-23 14:57:41,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-23 14:57:41,594 INFO L276 IsEmpty]: Start isEmpty. Operand 9859 states and 14384 transitions. [2022-11-23 14:57:41,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-23 14:57:41,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:57:41,601 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:57:41,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:57:41,602 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 14:57:41,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:57:41,604 INFO L85 PathProgramCache]: Analyzing trace with hash -628721447, now seen corresponding path program 1 times [2022-11-23 14:57:41,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:57:41,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746293127] [2022-11-23 14:57:41,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:57:41,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:57:42,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:57:42,911 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2022-11-23 14:57:42,911 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:57:42,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746293127] [2022-11-23 14:57:42,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746293127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:57:42,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:57:42,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:57:42,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102029387] [2022-11-23 14:57:42,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:57:42,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:57:42,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:57:42,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:57:42,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:57:42,914 INFO L87 Difference]: Start difference. First operand 9859 states and 14384 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-23 14:57:51,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:57:53,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:57:55,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:58,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:58:00,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:58:03,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:58:07,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:58:10,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:58:11,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:58:11,306 INFO L93 Difference]: Finished difference Result 19926 states and 29095 transitions. [2022-11-23 14:58:11,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:58:11,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 195 [2022-11-23 14:58:11,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:58:11,389 INFO L225 Difference]: With dead ends: 19926 [2022-11-23 14:58:11,390 INFO L226 Difference]: Without dead ends: 10100 [2022-11-23 14:58:11,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:58:11,457 INFO L413 NwaCegarLoop]: 4999 mSDtfsCounter, 2405 mSDsluCounter, 3751 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 16 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2407 SdHoareTripleChecker+Valid, 8750 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:58:11,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2407 Valid, 8750 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 824 Invalid, 5 Unknown, 0 Unchecked, 27.7s Time] [2022-11-23 14:58:11,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10100 states. [2022-11-23 14:58:12,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10100 to 10058. [2022-11-23 14:58:12,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10058 states, 6418 states have (on average 1.344655655967591) internal successors, (8630), 6482 states have internal predecessors, (8630), 3014 states have call successors, (3014), 628 states have call predecessors, (3014), 623 states have return successors, (3018), 2980 states have call predecessors, (3018), 3010 states have call successors, (3018) [2022-11-23 14:58:12,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10058 states to 10058 states and 14662 transitions. [2022-11-23 14:58:12,177 INFO L78 Accepts]: Start accepts. Automaton has 10058 states and 14662 transitions. Word has length 195 [2022-11-23 14:58:12,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:58:12,179 INFO L495 AbstractCegarLoop]: Abstraction has 10058 states and 14662 transitions. [2022-11-23 14:58:12,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-23 14:58:12,179 INFO L276 IsEmpty]: Start isEmpty. Operand 10058 states and 14662 transitions. [2022-11-23 14:58:12,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-11-23 14:58:12,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:58:12,187 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:58:12,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:58:12,187 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 14:58:12,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:58:12,188 INFO L85 PathProgramCache]: Analyzing trace with hash -489602009, now seen corresponding path program 1 times [2022-11-23 14:58:12,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:58:12,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694257661] [2022-11-23 14:58:12,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:58:12,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:58:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:58:13,588 INFO L134 CoverageAnalysis]: Checked inductivity of 996 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 996 trivial. 0 not checked. [2022-11-23 14:58:13,588 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:58:13,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694257661] [2022-11-23 14:58:13,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694257661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:58:13,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:58:13,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:58:13,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764438201] [2022-11-23 14:58:13,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:58:13,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:58:13,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:58:13,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:58:13,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:58:13,590 INFO L87 Difference]: Start difference. First operand 10058 states and 14662 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-23 14:58:19,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:58:21,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:58:23,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:58:26,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:58:30,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:58:33,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:58:37,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:58:39,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:58:41,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:58:43,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:58:43,371 INFO L93 Difference]: Finished difference Result 24541 states and 35734 transitions. [2022-11-23 14:58:43,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:58:43,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 224 [2022-11-23 14:58:43,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:58:43,488 INFO L225 Difference]: With dead ends: 24541 [2022-11-23 14:58:43,488 INFO L226 Difference]: Without dead ends: 14516 [2022-11-23 14:58:43,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:58:43,535 INFO L413 NwaCegarLoop]: 4525 mSDtfsCounter, 3378 mSDsluCounter, 3721 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 7 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3380 SdHoareTripleChecker+Valid, 8246 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:58:43,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3380 Valid, 8246 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 740 Invalid, 6 Unknown, 0 Unchecked, 29.3s Time] [2022-11-23 14:58:43,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14516 states. [2022-11-23 14:58:44,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14516 to 14483. [2022-11-23 14:58:44,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14483 states, 9223 states have (on average 1.3424048574216632) internal successors, (12381), 9332 states have internal predecessors, (12381), 4332 states have call successors, (4332), 937 states have call predecessors, (4332), 925 states have return successors, (4339), 4266 states have call predecessors, (4339), 4328 states have call successors, (4339) [2022-11-23 14:58:44,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14483 states to 14483 states and 21052 transitions. [2022-11-23 14:58:44,446 INFO L78 Accepts]: Start accepts. Automaton has 14483 states and 21052 transitions. Word has length 224 [2022-11-23 14:58:44,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:58:44,448 INFO L495 AbstractCegarLoop]: Abstraction has 14483 states and 21052 transitions. [2022-11-23 14:58:44,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-23 14:58:44,448 INFO L276 IsEmpty]: Start isEmpty. Operand 14483 states and 21052 transitions. [2022-11-23 14:58:44,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-11-23 14:58:44,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:58:44,455 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 5, 5, 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] [2022-11-23 14:58:44,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:58:44,455 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 14:58:44,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:58:44,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1984809474, now seen corresponding path program 1 times [2022-11-23 14:58:44,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:58:44,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328308514] [2022-11-23 14:58:44,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:58:44,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:58:44,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:58:47,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1134 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1134 trivial. 0 not checked. [2022-11-23 14:58:47,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:58:47,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328308514] [2022-11-23 14:58:47,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328308514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:58:47,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:58:47,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:58:47,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261061224] [2022-11-23 14:58:47,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:58:47,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:58:47,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:58:47,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:58:47,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:58:47,079 INFO L87 Difference]: Start difference. First operand 14483 states and 21052 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-23 14:58:51,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:58:53,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:58:56,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:58:57,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:59:00,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:59:02,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:59:04,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:59:05,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:59:08,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:59:12,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:59:19,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:59:25,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:59:27,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:59:29,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:59:34,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:59:36,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:59:37,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:59:38,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:59:38,607 INFO L93 Difference]: Finished difference Result 28120 states and 40877 transitions. [2022-11-23 14:59:38,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:59:38,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 232 [2022-11-23 14:59:38,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:59:38,761 INFO L225 Difference]: With dead ends: 28120 [2022-11-23 14:59:38,761 INFO L226 Difference]: Without dead ends: 28118 [2022-11-23 14:59:38,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:59:38,777 INFO L413 NwaCegarLoop]: 4691 mSDtfsCounter, 3536 mSDsluCounter, 13106 mSDsCounter, 0 mSdLazyCounter, 1558 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3553 SdHoareTripleChecker+Valid, 17797 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1558 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:59:38,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3553 Valid, 17797 Invalid, 1567 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1558 Invalid, 7 Unknown, 0 Unchecked, 50.5s Time] [2022-11-23 14:59:38,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28118 states. [2022-11-23 14:59:40,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28118 to 28111. [2022-11-23 14:59:40,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28111 states, 17871 states have (on average 1.3421744726092553) internal successors, (23986), 18087 states have internal predecessors, (23986), 8434 states have call successors, (8434), 1827 states have call predecessors, (8434), 1803 states have return successors, (8451), 8301 states have call predecessors, (8451), 8426 states have call successors, (8451) [2022-11-23 14:59:40,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28111 states to 28111 states and 40871 transitions. [2022-11-23 14:59:40,425 INFO L78 Accepts]: Start accepts. Automaton has 28111 states and 40871 transitions. Word has length 232 [2022-11-23 14:59:40,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:59:40,427 INFO L495 AbstractCegarLoop]: Abstraction has 28111 states and 40871 transitions. [2022-11-23 14:59:40,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-23 14:59:40,427 INFO L276 IsEmpty]: Start isEmpty. Operand 28111 states and 40871 transitions. [2022-11-23 14:59:40,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-11-23 14:59:40,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:59:40,444 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:59:40,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:59:40,444 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 14:59:40,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:59:40,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1950480593, now seen corresponding path program 1 times [2022-11-23 14:59:40,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:59:40,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322396449] [2022-11-23 14:59:40,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:59:40,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:59:40,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:59:42,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1137 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1135 trivial. 0 not checked. [2022-11-23 14:59:42,810 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:59:42,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322396449] [2022-11-23 14:59:42,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322396449] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:59:42,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:59:42,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:59:42,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662805811] [2022-11-23 14:59:42,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:59:42,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:59:42,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:59:42,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:59:42,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:59:42,813 INFO L87 Difference]: Start difference. First operand 28111 states and 40871 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-23 14:59:51,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:59:53,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:59:57,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:59:59,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:00:04,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:00:08,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:00:16,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:00:20,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:00:22,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:00:24,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:00:24,204 INFO L93 Difference]: Finished difference Result 28448 states and 41272 transitions. [2022-11-23 15:00:24,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:00:24,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 238 [2022-11-23 15:00:24,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:00:24,376 INFO L225 Difference]: With dead ends: 28448 [2022-11-23 15:00:24,376 INFO L226 Difference]: Without dead ends: 28446 [2022-11-23 15:00:24,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:00:24,396 INFO L413 NwaCegarLoop]: 4698 mSDtfsCounter, 3485 mSDsluCounter, 13114 mSDsCounter, 0 mSdLazyCounter, 1577 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3502 SdHoareTripleChecker+Valid, 17812 SdHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1577 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:00:24,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3502 Valid, 17812 Invalid, 1584 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1577 Invalid, 5 Unknown, 0 Unchecked, 40.3s Time] [2022-11-23 15:00:24,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28446 states. [2022-11-23 15:00:25,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28446 to 28421. [2022-11-23 15:00:25,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28421 states, 18050 states have (on average 1.341218836565097) internal successors, (24209), 18278 states have internal predecessors, (24209), 8510 states have call successors, (8510), 1880 states have call predecessors, (8510), 1858 states have return successors, (8529), 8367 states have call predecessors, (8529), 8502 states have call successors, (8529) [2022-11-23 15:00:26,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28421 states to 28421 states and 41248 transitions. [2022-11-23 15:00:26,009 INFO L78 Accepts]: Start accepts. Automaton has 28421 states and 41248 transitions. Word has length 238 [2022-11-23 15:00:26,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:00:26,010 INFO L495 AbstractCegarLoop]: Abstraction has 28421 states and 41248 transitions. [2022-11-23 15:00:26,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-23 15:00:26,011 INFO L276 IsEmpty]: Start isEmpty. Operand 28421 states and 41248 transitions. [2022-11-23 15:00:26,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-11-23 15:00:26,019 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:00:26,019 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:00:26,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:00:26,020 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:00:26,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:00:26,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1087820604, now seen corresponding path program 1 times [2022-11-23 15:00:26,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:00:26,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999520927] [2022-11-23 15:00:26,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:00:26,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:00:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:00:28,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1137 trivial. 0 not checked. [2022-11-23 15:00:28,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:00:28,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999520927] [2022-11-23 15:00:28,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999520927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:00:28,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:00:28,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:00:28,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406930262] [2022-11-23 15:00:28,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:00:28,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:00:28,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:00:28,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:00:28,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:00:28,133 INFO L87 Difference]: Start difference. First operand 28421 states and 41248 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-23 15:00:32,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:00:36,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:00:41,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:00:43,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:00:45,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:00:47,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:00:49,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:00:53,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:01:00,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:01:02,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:01:07,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:01:09,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:01:11,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:01:15,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:01:19,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:01:19,558 INFO L93 Difference]: Finished difference Result 28434 states and 41257 transitions. [2022-11-23 15:01:19,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:01:19,559 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 245 [2022-11-23 15:01:19,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:01:19,671 INFO L225 Difference]: With dead ends: 28434 [2022-11-23 15:01:19,671 INFO L226 Difference]: Without dead ends: 28432 [2022-11-23 15:01:19,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:01:19,685 INFO L413 NwaCegarLoop]: 4694 mSDtfsCounter, 3532 mSDsluCounter, 13106 mSDsCounter, 0 mSdLazyCounter, 1559 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3547 SdHoareTripleChecker+Valid, 17800 SdHoareTripleChecker+Invalid, 1569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1559 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:01:19,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3547 Valid, 17800 Invalid, 1569 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1559 Invalid, 8 Unknown, 0 Unchecked, 50.3s Time] [2022-11-23 15:01:19,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28432 states. [2022-11-23 15:01:21,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28432 to 28425. [2022-11-23 15:01:21,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28425 states, 18053 states have (on average 1.3411621337173878) internal successors, (24212), 18281 states have internal predecessors, (24212), 8510 states have call successors, (8510), 1881 states have call predecessors, (8510), 1859 states have return successors, (8529), 8367 states have call predecessors, (8529), 8502 states have call successors, (8529) [2022-11-23 15:01:21,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28425 states to 28425 states and 41251 transitions. [2022-11-23 15:01:21,205 INFO L78 Accepts]: Start accepts. Automaton has 28425 states and 41251 transitions. Word has length 245 [2022-11-23 15:01:21,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:01:21,206 INFO L495 AbstractCegarLoop]: Abstraction has 28425 states and 41251 transitions. [2022-11-23 15:01:21,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-23 15:01:21,207 INFO L276 IsEmpty]: Start isEmpty. Operand 28425 states and 41251 transitions. [2022-11-23 15:01:21,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-23 15:01:21,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:01:21,216 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:01:21,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 15:01:21,217 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:01:21,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:01:21,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1183196207, now seen corresponding path program 1 times [2022-11-23 15:01:21,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:01:21,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297389845] [2022-11-23 15:01:21,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:01:21,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:01:21,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:01:23,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1153 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1147 trivial. 0 not checked. [2022-11-23 15:01:23,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:01:23,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297389845] [2022-11-23 15:01:23,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297389845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:01:23,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:01:23,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:01:23,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862274704] [2022-11-23 15:01:23,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:01:23,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:01:23,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:01:23,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:01:23,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:01:23,419 INFO L87 Difference]: Start difference. First operand 28425 states and 41251 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-23 15:01:27,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:01:28,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:01:31,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:01:33,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:01:34,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:01:37,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:01:38,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:01:40,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:01:42,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:01:45,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:01:49,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:01:54,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:01:57,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:02:03,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:02:07,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:02:11,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:02:11,112 INFO L93 Difference]: Finished difference Result 28558 states and 41368 transitions. [2022-11-23 15:02:11,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:02:11,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 248 [2022-11-23 15:02:11,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:02:11,237 INFO L225 Difference]: With dead ends: 28558 [2022-11-23 15:02:11,237 INFO L226 Difference]: Without dead ends: 28556 [2022-11-23 15:02:11,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:02:11,250 INFO L413 NwaCegarLoop]: 4678 mSDtfsCounter, 3462 mSDsluCounter, 13074 mSDsCounter, 0 mSdLazyCounter, 1553 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3478 SdHoareTripleChecker+Valid, 17752 SdHoareTripleChecker+Invalid, 1563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1553 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:02:11,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3478 Valid, 17752 Invalid, 1563 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1553 Invalid, 8 Unknown, 0 Unchecked, 46.5s Time] [2022-11-23 15:02:11,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28556 states. [2022-11-23 15:02:12,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28556 to 28549. [2022-11-23 15:02:12,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28549 states, 18122 states have (on average 1.340194239046463) internal successors, (24287), 18350 states have internal predecessors, (24287), 8528 states have call successors, (8528), 1918 states have call predecessors, (8528), 1896 states have return successors, (8547), 8385 states have call predecessors, (8547), 8520 states have call successors, (8547) [2022-11-23 15:02:12,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28549 states to 28549 states and 41362 transitions. [2022-11-23 15:02:12,774 INFO L78 Accepts]: Start accepts. Automaton has 28549 states and 41362 transitions. Word has length 248 [2022-11-23 15:02:12,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:02:12,775 INFO L495 AbstractCegarLoop]: Abstraction has 28549 states and 41362 transitions. [2022-11-23 15:02:12,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-23 15:02:12,776 INFO L276 IsEmpty]: Start isEmpty. Operand 28549 states and 41362 transitions. [2022-11-23 15:02:12,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-23 15:02:12,782 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:02:12,783 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:02:12,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 15:02:12,784 INFO L420 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)] === [2022-11-23 15:02:12,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:02:12,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1732966251, now seen corresponding path program 1 times [2022-11-23 15:02:12,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:02:12,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825630015] [2022-11-23 15:02:12,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:02:12,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:02:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:02:14,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1121 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1118 trivial. 0 not checked. [2022-11-23 15:02:14,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:02:14,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825630015] [2022-11-23 15:02:14,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825630015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:02:14,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:02:14,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:02:14,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628237546] [2022-11-23 15:02:14,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:02:14,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:02:14,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:02:14,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:02:14,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:02:14,096 INFO L87 Difference]: Start difference. First operand 28549 states and 41362 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-23 15:02:21,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:02:22,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:02:25,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:02:27,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:02:30,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:02:33,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:02:37,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:02:40,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:02:44,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:02:47,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:02:47,315 INFO L93 Difference]: Finished difference Result 65349 states and 94782 transitions. [2022-11-23 15:02:47,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:02:47,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 248 [2022-11-23 15:02:47,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:02:47,488 INFO L225 Difference]: With dead ends: 65349 [2022-11-23 15:02:47,489 INFO L226 Difference]: Without dead ends: 37295 [2022-11-23 15:02:47,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:02:47,602 INFO L413 NwaCegarLoop]: 5906 mSDtfsCounter, 2400 mSDsluCounter, 3749 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 15 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2402 SdHoareTripleChecker+Valid, 9655 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:02:47,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2402 Valid, 9655 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 968 Invalid, 6 Unknown, 0 Unchecked, 31.6s Time] [2022-11-23 15:02:47,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37295 states. [2022-11-23 15:02:49,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37295 to 37205. [2022-11-23 15:02:49,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37205 states, 23764 states have (on average 1.3435869382258878) internal successors, (31929), 24048 states have internal predecessors, (31929), 10964 states have call successors, (10964), 2504 states have call predecessors, (10964), 2474 states have return successors, (10991), 10773 states have call predecessors, (10991), 10956 states have call successors, (10991) [2022-11-23 15:02:49,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37205 states to 37205 states and 53884 transitions. [2022-11-23 15:02:49,620 INFO L78 Accepts]: Start accepts. Automaton has 37205 states and 53884 transitions. Word has length 248 [2022-11-23 15:02:49,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:02:49,621 INFO L495 AbstractCegarLoop]: Abstraction has 37205 states and 53884 transitions. [2022-11-23 15:02:49,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-23 15:02:49,622 INFO L276 IsEmpty]: Start isEmpty. Operand 37205 states and 53884 transitions. [2022-11-23 15:02:49,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-11-23 15:02:49,629 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:02:49,629 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 5, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:02:49,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 15:02:49,630 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:02:49,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:02:49,630 INFO L85 PathProgramCache]: Analyzing trace with hash -136295038, now seen corresponding path program 1 times [2022-11-23 15:02:49,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:02:49,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121975657] [2022-11-23 15:02:49,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:02:49,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:02:49,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:02:52,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1166 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2022-11-23 15:02:52,159 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:02:52,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121975657] [2022-11-23 15:02:52,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121975657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:02:52,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:02:52,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:02:52,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809018330] [2022-11-23 15:02:52,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:02:52,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:02:52,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:02:52,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:02:52,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:02:52,161 INFO L87 Difference]: Start difference. First operand 37205 states and 53884 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-23 15:03:01,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:03:03,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:03:05,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:03:07,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:03:10,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:03:14,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:03:20,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:03:26,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:03:30,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:03:34,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:03:34,645 INFO L93 Difference]: Finished difference Result 37236 states and 53911 transitions. [2022-11-23 15:03:34,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:03:34,646 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 252 [2022-11-23 15:03:34,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:03:34,778 INFO L225 Difference]: With dead ends: 37236 [2022-11-23 15:03:34,778 INFO L226 Difference]: Without dead ends: 37234 [2022-11-23 15:03:34,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:03:34,790 INFO L413 NwaCegarLoop]: 4682 mSDtfsCounter, 3416 mSDsluCounter, 13082 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3432 SdHoareTripleChecker+Valid, 17764 SdHoareTripleChecker+Invalid, 1582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:03:34,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3432 Valid, 17764 Invalid, 1582 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1573 Invalid, 7 Unknown, 0 Unchecked, 41.0s Time] [2022-11-23 15:03:34,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37234 states. [2022-11-23 15:03:36,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37234 to 37209. [2022-11-23 15:03:36,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37209 states, 23767 states have (on average 1.3435435688139017) internal successors, (31932), 24051 states have internal predecessors, (31932), 10964 states have call successors, (10964), 2505 states have call predecessors, (10964), 2475 states have return successors, (10991), 10773 states have call predecessors, (10991), 10956 states have call successors, (10991) [2022-11-23 15:03:36,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37209 states to 37209 states and 53887 transitions. [2022-11-23 15:03:36,822 INFO L78 Accepts]: Start accepts. Automaton has 37209 states and 53887 transitions. Word has length 252 [2022-11-23 15:03:36,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:03:36,823 INFO L495 AbstractCegarLoop]: Abstraction has 37209 states and 53887 transitions. [2022-11-23 15:03:36,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-23 15:03:36,823 INFO L276 IsEmpty]: Start isEmpty. Operand 37209 states and 53887 transitions. [2022-11-23 15:03:36,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-11-23 15:03:36,831 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:03:36,832 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:03:36,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 15:03:36,832 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:03:36,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:03:36,833 INFO L85 PathProgramCache]: Analyzing trace with hash -263871342, now seen corresponding path program 1 times [2022-11-23 15:03:36,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:03:36,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239863813] [2022-11-23 15:03:36,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:03:36,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:03:37,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:03:39,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1184 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1174 trivial. 0 not checked. [2022-11-23 15:03:39,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:03:39,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239863813] [2022-11-23 15:03:39,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239863813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:03:39,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:03:39,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:03:39,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899917395] [2022-11-23 15:03:39,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:03:39,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:03:39,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:03:39,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:03:39,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:03:39,293 INFO L87 Difference]: Start difference. First operand 37209 states and 53887 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-23 15:03:45,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:03:50,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:03:52,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:03:54,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:03:57,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:01,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:05,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:04:13,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:16,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:20,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:04:20,178 INFO L93 Difference]: Finished difference Result 37240 states and 53914 transitions. [2022-11-23 15:04:20,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:04:20,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 257 [2022-11-23 15:04:20,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:04:20,296 INFO L225 Difference]: With dead ends: 37240 [2022-11-23 15:04:20,297 INFO L226 Difference]: Without dead ends: 37238 [2022-11-23 15:04:20,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:04:20,310 INFO L413 NwaCegarLoop]: 4682 mSDtfsCounter, 3416 mSDsluCounter, 13082 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3431 SdHoareTripleChecker+Valid, 17764 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:04:20,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3431 Valid, 17764 Invalid, 1581 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1573 Invalid, 6 Unknown, 0 Unchecked, 39.2s Time] [2022-11-23 15:04:20,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37238 states. [2022-11-23 15:04:21,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37238 to 37213. [2022-11-23 15:04:21,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37213 states, 23770 states have (on average 1.3435002103491795) internal successors, (31935), 24054 states have internal predecessors, (31935), 10964 states have call successors, (10964), 2506 states have call predecessors, (10964), 2476 states have return successors, (10991), 10773 states have call predecessors, (10991), 10956 states have call successors, (10991) [2022-11-23 15:04:22,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37213 states to 37213 states and 53890 transitions. [2022-11-23 15:04:22,082 INFO L78 Accepts]: Start accepts. Automaton has 37213 states and 53890 transitions. Word has length 257 [2022-11-23 15:04:22,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:04:22,083 INFO L495 AbstractCegarLoop]: Abstraction has 37213 states and 53890 transitions. [2022-11-23 15:04:22,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-23 15:04:22,083 INFO L276 IsEmpty]: Start isEmpty. Operand 37213 states and 53890 transitions. [2022-11-23 15:04:22,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-11-23 15:04:22,091 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:04:22,091 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:04:22,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 15:04:22,092 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:04:22,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:04:22,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1168644932, now seen corresponding path program 1 times [2022-11-23 15:04:22,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:04:22,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101572887] [2022-11-23 15:04:22,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:04:22,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:04:22,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:04:24,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1205 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1193 trivial. 0 not checked. [2022-11-23 15:04:24,504 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:04:24,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101572887] [2022-11-23 15:04:24,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101572887] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:04:24,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:04:24,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:04:24,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589122525] [2022-11-23 15:04:24,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:04:24,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:04:24,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:04:24,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:04:24,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:04:24,506 INFO L87 Difference]: Start difference. First operand 37213 states and 53890 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-23 15:04:28,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:34,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:04:37,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:38,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:41,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:04:43,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:47,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:52,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:58,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:05:00,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:05:04,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:05:08,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:05:08,853 INFO L93 Difference]: Finished difference Result 37572 states and 54301 transitions. [2022-11-23 15:05:08,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:05:08,854 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 265 [2022-11-23 15:05:08,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:05:08,975 INFO L225 Difference]: With dead ends: 37572 [2022-11-23 15:05:08,975 INFO L226 Difference]: Without dead ends: 37570 [2022-11-23 15:05:08,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:05:08,989 INFO L413 NwaCegarLoop]: 4699 mSDtfsCounter, 3482 mSDsluCounter, 13116 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3495 SdHoareTripleChecker+Valid, 17815 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:05:08,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3495 Valid, 17815 Invalid, 1581 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1572 Invalid, 7 Unknown, 0 Unchecked, 42.4s Time] [2022-11-23 15:05:09,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37570 states. [2022-11-23 15:05:10,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37570 to 37505. [2022-11-23 15:05:10,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37505 states, 23941 states have (on average 1.3430516686855185) internal successors, (32154), 24241 states have internal predecessors, (32154), 11028 states have call successors, (11028), 2563 states have call predecessors, (11028), 2533 states have return successors, (11055), 10821 states have call predecessors, (11055), 11020 states have call successors, (11055) [2022-11-23 15:05:10,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37505 states to 37505 states and 54237 transitions. [2022-11-23 15:05:10,824 INFO L78 Accepts]: Start accepts. Automaton has 37505 states and 54237 transitions. Word has length 265 [2022-11-23 15:05:10,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:05:10,825 INFO L495 AbstractCegarLoop]: Abstraction has 37505 states and 54237 transitions. [2022-11-23 15:05:10,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-23 15:05:10,825 INFO L276 IsEmpty]: Start isEmpty. Operand 37505 states and 54237 transitions. [2022-11-23 15:05:10,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-11-23 15:05:10,831 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:05:10,832 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 8, 7, 7, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:05:10,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 15:05:10,832 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:05:10,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:05:10,833 INFO L85 PathProgramCache]: Analyzing trace with hash 517173713, now seen corresponding path program 1 times [2022-11-23 15:05:10,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:05:10,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205409400] [2022-11-23 15:05:10,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:05:10,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:05:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:05:12,807 INFO L134 CoverageAnalysis]: Checked inductivity of 1233 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1219 trivial. 0 not checked. [2022-11-23 15:05:12,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:05:12,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205409400] [2022-11-23 15:05:12,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205409400] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:05:12,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:05:12,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:05:12,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223601071] [2022-11-23 15:05:12,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:05:12,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:05:12,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:05:12,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:05:12,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:05:12,810 INFO L87 Difference]: Start difference. First operand 37505 states and 54237 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-23 15:05:20,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:05:25,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:05:27,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:05:29,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:05:32,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:05:40,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:05:47,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:05:50,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:05:52,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:05:52,415 INFO L93 Difference]: Finished difference Result 58870 states and 84878 transitions. [2022-11-23 15:05:52,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:05:52,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 268 [2022-11-23 15:05:52,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:05:52,677 INFO L225 Difference]: With dead ends: 58870 [2022-11-23 15:05:52,677 INFO L226 Difference]: Without dead ends: 58868 [2022-11-23 15:05:52,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:05:52,707 INFO L413 NwaCegarLoop]: 4439 mSDtfsCounter, 3630 mSDsluCounter, 11314 mSDsCounter, 0 mSdLazyCounter, 1505 mSolverCounterSat, 3 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3639 SdHoareTripleChecker+Valid, 15753 SdHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1505 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:05:52,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3639 Valid, 15753 Invalid, 1515 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1505 Invalid, 7 Unknown, 0 Unchecked, 37.3s Time] [2022-11-23 15:05:52,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58868 states. [2022-11-23 15:05:55,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58868 to 58843. [2022-11-23 15:05:55,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58843 states, 37705 states have (on average 1.3476992441320779) internal successors, (50815), 38311 states have internal predecessors, (50815), 16922 states have call successors, (16922), 4365 states have call predecessors, (16922), 4213 states have return successors, (17115), 16375 states have call predecessors, (17115), 16906 states have call successors, (17115) [2022-11-23 15:05:55,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58843 states to 58843 states and 84852 transitions. [2022-11-23 15:05:55,998 INFO L78 Accepts]: Start accepts. Automaton has 58843 states and 84852 transitions. Word has length 268 [2022-11-23 15:05:55,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:05:55,999 INFO L495 AbstractCegarLoop]: Abstraction has 58843 states and 84852 transitions. [2022-11-23 15:05:55,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-23 15:05:55,999 INFO L276 IsEmpty]: Start isEmpty. Operand 58843 states and 84852 transitions. [2022-11-23 15:05:56,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-11-23 15:05:56,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:05:56,007 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 9, 8, 8, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:05:56,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-23 15:05:56,007 INFO L420 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)] === [2022-11-23 15:05:56,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:05:56,008 INFO L85 PathProgramCache]: Analyzing trace with hash 516890851, now seen corresponding path program 1 times [2022-11-23 15:05:56,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:05:56,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791850168] [2022-11-23 15:05:56,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:05:56,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:05:56,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:05:58,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1263 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1247 trivial. 0 not checked. [2022-11-23 15:05:58,067 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:05:58,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791850168] [2022-11-23 15:05:58,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791850168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:05:58,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:05:58,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:05:58,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010015265] [2022-11-23 15:05:58,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:05:58,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:05:58,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:05:58,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:05:58,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:05:58,069 INFO L87 Difference]: Start difference. First operand 58843 states and 84852 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-23 15:06:06,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:06:08,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:06:10,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:06:12,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:06:15,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:17,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:24,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:26,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:30,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:06:32,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:06:39,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:42,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:47,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:06:47,443 INFO L93 Difference]: Finished difference Result 58860 states and 84865 transitions. [2022-11-23 15:06:47,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:06:47,443 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 273 [2022-11-23 15:06:47,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:06:47,672 INFO L225 Difference]: With dead ends: 58860 [2022-11-23 15:06:47,672 INFO L226 Difference]: Without dead ends: 58858 [2022-11-23 15:06:47,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:06:47,693 INFO L413 NwaCegarLoop]: 4678 mSDtfsCounter, 3462 mSDsluCounter, 13074 mSDsCounter, 0 mSdLazyCounter, 1555 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3473 SdHoareTripleChecker+Valid, 17752 SdHoareTripleChecker+Invalid, 1565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1555 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:06:47,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3473 Valid, 17752 Invalid, 1565 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1555 Invalid, 8 Unknown, 0 Unchecked, 46.3s Time] [2022-11-23 15:06:47,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58858 states. [2022-11-23 15:06:50,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58858 to 58851. [2022-11-23 15:06:51,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58851 states, 37711 states have (on average 1.3476439235236404) internal successors, (50821), 38317 states have internal predecessors, (50821), 16922 states have call successors, (16922), 4367 states have call predecessors, (16922), 4215 states have return successors, (17115), 16375 states have call predecessors, (17115), 16906 states have call successors, (17115) [2022-11-23 15:06:51,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58851 states to 58851 states and 84858 transitions. [2022-11-23 15:06:51,530 INFO L78 Accepts]: Start accepts. Automaton has 58851 states and 84858 transitions. Word has length 273 [2022-11-23 15:06:51,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:06:51,531 INFO L495 AbstractCegarLoop]: Abstraction has 58851 states and 84858 transitions. [2022-11-23 15:06:51,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-23 15:06:51,532 INFO L276 IsEmpty]: Start isEmpty. Operand 58851 states and 84858 transitions. [2022-11-23 15:06:51,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-11-23 15:06:51,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:06:51,538 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 10, 9, 9, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:06:51,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-23 15:06:51,539 INFO L420 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)] === [2022-11-23 15:06:51,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:06:51,539 INFO L85 PathProgramCache]: Analyzing trace with hash -406605806, now seen corresponding path program 1 times [2022-11-23 15:06:51,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:06:51,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334672466] [2022-11-23 15:06:51,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:06:51,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:06:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:06:53,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1278 trivial. 0 not checked. [2022-11-23 15:06:53,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:06:53,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334672466] [2022-11-23 15:06:53,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334672466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:06:53,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:06:53,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:06:53,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184219005] [2022-11-23 15:06:53,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:06:53,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:06:53,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:06:53,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:06:53,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:06:53,497 INFO L87 Difference]: Start difference. First operand 58851 states and 84858 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-23 15:06:58,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:59,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:07:05,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:07:07,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:07:09,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:07:10,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:07:12,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:07:21,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:07:23,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:07:30,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:07:33,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:07:36,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:07:41,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:07:41,117 INFO L93 Difference]: Finished difference Result 58886 states and 84889 transitions. [2022-11-23 15:07:41,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:07:41,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 277 [2022-11-23 15:07:41,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:07:41,340 INFO L225 Difference]: With dead ends: 58886 [2022-11-23 15:07:41,341 INFO L226 Difference]: Without dead ends: 58884 [2022-11-23 15:07:41,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:07:41,362 INFO L413 NwaCegarLoop]: 4698 mSDtfsCounter, 3485 mSDsluCounter, 13114 mSDsCounter, 0 mSdLazyCounter, 1576 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3494 SdHoareTripleChecker+Valid, 17812 SdHoareTripleChecker+Invalid, 1585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1576 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:07:41,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3494 Valid, 17812 Invalid, 1585 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1576 Invalid, 7 Unknown, 0 Unchecked, 44.5s Time] [2022-11-23 15:07:41,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58884 states. [2022-11-23 15:07:44,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58884 to 58859. [2022-11-23 15:07:44,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58859 states, 37717 states have (on average 1.3475886205159477) internal successors, (50827), 38323 states have internal predecessors, (50827), 16922 states have call successors, (16922), 4369 states have call predecessors, (16922), 4217 states have return successors, (17115), 16375 states have call predecessors, (17115), 16906 states have call successors, (17115) [2022-11-23 15:07:44,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58859 states to 58859 states and 84864 transitions. [2022-11-23 15:07:44,959 INFO L78 Accepts]: Start accepts. Automaton has 58859 states and 84864 transitions. Word has length 277 [2022-11-23 15:07:44,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:07:44,961 INFO L495 AbstractCegarLoop]: Abstraction has 58859 states and 84864 transitions. [2022-11-23 15:07:44,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-23 15:07:44,961 INFO L276 IsEmpty]: Start isEmpty. Operand 58859 states and 84864 transitions. [2022-11-23 15:07:44,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-11-23 15:07:44,970 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:07:44,970 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 11, 10, 10, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:07:44,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-23 15:07:44,971 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:07:44,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:07:44,972 INFO L85 PathProgramCache]: Analyzing trace with hash 72842595, now seen corresponding path program 1 times [2022-11-23 15:07:44,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:07:44,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919312032] [2022-11-23 15:07:44,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:44,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:07:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:07:46,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1335 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1315 trivial. 0 not checked. [2022-11-23 15:07:46,977 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:07:46,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919312032] [2022-11-23 15:07:46,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919312032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:07:46,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:07:46,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:07:46,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265366823] [2022-11-23 15:07:46,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:07:46,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:07:46,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:07:46,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:07:46,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:07:46,980 INFO L87 Difference]: Start difference. First operand 58859 states and 84864 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-23 15:07:51,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:07:53,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:07:55,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:07:57,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:07:59,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:08:02,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:08:03,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:08:05,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []