./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b194231-21c8-465f-9ef1-ebb1ec7dc2c5/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b194231-21c8-465f-9ef1-ebb1ec7dc2c5/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b194231-21c8-465f-9ef1-ebb1ec7dc2c5/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b194231-21c8-465f-9ef1-ebb1ec7dc2c5/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b194231-21c8-465f-9ef1-ebb1ec7dc2c5/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b194231-21c8-465f-9ef1-ebb1ec7dc2c5/bin/utaipan-g80aRyZoba --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 52f53de973aa03e2a9eaadeeb26ce30c3104ed671c54a416d14fc4c2bdab8bd9 --- 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-b5237d8 [2022-11-22 01:37:25,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:37:25,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:37:25,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:37:25,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:37:25,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:37:25,150 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:37:25,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:37:25,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:37:25,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:37:25,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:37:25,170 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:37:25,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:37:25,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:37:25,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:37:25,177 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:37:25,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:37:25,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:37:25,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:37:25,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:37:25,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:37:25,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:37:25,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:37:25,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:37:25,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:37:25,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:37:25,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:37:25,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:37:25,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:37:25,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:37:25,205 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:37:25,205 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:37:25,207 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:37:25,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:37:25,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:37:25,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:37:25,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:37:25,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:37:25,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:37:25,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:37:25,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:37:25,214 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b194231-21c8-465f-9ef1-ebb1ec7dc2c5/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:37:25,250 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:37:25,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:37:25,254 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:37:25,254 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:37:25,255 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:37:25,255 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:37:25,256 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:37:25,256 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:37:25,256 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:37:25,256 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:37:25,257 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:37:25,257 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:37:25,258 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:37:25,258 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:37:25,258 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:37:25,258 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:37:25,258 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:37:25,258 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:37:25,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:37:25,260 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:37:25,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:37:25,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:37:25,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:37:25,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:37:25,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:37:25,261 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:37:25,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:37:25,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:37:25,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:37:25,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:37:25,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:37:25,262 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:37:25,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:37:25,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:37:25,263 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:37:25,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:37:25,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:37:25,263 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:37:25,263 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_0b194231-21c8-465f-9ef1-ebb1ec7dc2c5/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b194231-21c8-465f-9ef1-ebb1ec7dc2c5/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52f53de973aa03e2a9eaadeeb26ce30c3104ed671c54a416d14fc4c2bdab8bd9 [2022-11-22 01:37:25,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:37:25,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:37:25,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:37:25,539 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:37:25,540 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:37:25,541 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b194231-21c8-465f-9ef1-ebb1ec7dc2c5/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-11-22 01:37:28,523 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:37:29,286 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:37:29,286 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b194231-21c8-465f-9ef1-ebb1ec7dc2c5/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-11-22 01:37:29,355 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b194231-21c8-465f-9ef1-ebb1ec7dc2c5/bin/utaipan-g80aRyZoba/data/57dfd644f/aac752ac1777483eb49ccf88958ecf2e/FLAG93324223a [2022-11-22 01:37:29,374 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b194231-21c8-465f-9ef1-ebb1ec7dc2c5/bin/utaipan-g80aRyZoba/data/57dfd644f/aac752ac1777483eb49ccf88958ecf2e [2022-11-22 01:37:29,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:37:29,381 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:37:29,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:37:29,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:37:29,389 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:37:29,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:37:29" (1/1) ... [2022-11-22 01:37:29,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@337a633e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:29, skipping insertion in model container [2022-11-22 01:37:29,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:37:29" (1/1) ... [2022-11-22 01:37:29,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:37:29,621 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:37:34,325 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_0b194231-21c8-465f-9ef1-ebb1ec7dc2c5/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[479863,479876] [2022-11-22 01:37:34,331 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_0b194231-21c8-465f-9ef1-ebb1ec7dc2c5/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480032,480045] [2022-11-22 01:37:34,332 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_0b194231-21c8-465f-9ef1-ebb1ec7dc2c5/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480199,480212] [2022-11-22 01:37:34,332 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_0b194231-21c8-465f-9ef1-ebb1ec7dc2c5/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480367,480380] [2022-11-22 01:37:34,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:37:34,429 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:37:35,061 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_0b194231-21c8-465f-9ef1-ebb1ec7dc2c5/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[479863,479876] [2022-11-22 01:37:35,062 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_0b194231-21c8-465f-9ef1-ebb1ec7dc2c5/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480032,480045] [2022-11-22 01:37:35,063 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_0b194231-21c8-465f-9ef1-ebb1ec7dc2c5/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480199,480212] [2022-11-22 01:37:35,063 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_0b194231-21c8-465f-9ef1-ebb1ec7dc2c5/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480367,480380] [2022-11-22 01:37:35,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:37:35,258 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:37:35,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:35 WrapperNode [2022-11-22 01:37:35,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:37:35,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:37:35,260 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:37:35,260 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:37:35,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:35" (1/1) ... [2022-11-22 01:37:35,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:35" (1/1) ... [2022-11-22 01:37:35,811 INFO L138 Inliner]: procedures = 544, calls = 4226, calls flagged for inlining = 248, calls inlined = 231, statements flattened = 8776 [2022-11-22 01:37:35,811 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:37:35,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:37:35,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:37:35,812 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:37:35,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:35" (1/1) ... [2022-11-22 01:37:35,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:35" (1/1) ... [2022-11-22 01:37:35,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:35" (1/1) ... [2022-11-22 01:37:35,888 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:35" (1/1) ... [2022-11-22 01:37:36,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:35" (1/1) ... [2022-11-22 01:37:36,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:35" (1/1) ... [2022-11-22 01:37:36,296 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:35" (1/1) ... [2022-11-22 01:37:36,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:35" (1/1) ... [2022-11-22 01:37:36,371 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:37:36,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:37:36,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:37:36,372 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:37:36,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:35" (1/1) ... [2022-11-22 01:37:36,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:37:36,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b194231-21c8-465f-9ef1-ebb1ec7dc2c5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:37:36,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b194231-21c8-465f-9ef1-ebb1ec7dc2c5/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:37:36,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b194231-21c8-465f-9ef1-ebb1ec7dc2c5/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:37:36,451 INFO L130 BoogieDeclarations]: Found specification of procedure disable_ast [2022-11-22 01:37:36,452 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_ast [2022-11-22 01:37:36,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 01:37:36,452 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 01:37:36,452 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 01:37:36,452 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 01:37:36,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:37:36,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:37:36,453 INFO L130 BoogieDeclarations]: Found specification of procedure type4_infoblock [2022-11-22 01:37:36,453 INFO L138 BoogieDeclarations]: Found implementation of procedure type4_infoblock [2022-11-22 01:37:36,453 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_put_cache [2022-11-22 01:37:36,453 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_put_cache [2022-11-22 01:37:36,453 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-22 01:37:36,454 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-22 01:37:36,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_de4x5_private [2022-11-22 01:37:36,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_de4x5_private [2022-11-22 01:37:36,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 01:37:36,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 01:37:36,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_de4x5_private [2022-11-22 01:37:36,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_de4x5_private [2022-11-22 01:37:36,456 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_mii [2022-11-22 01:37:36,456 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_mii [2022-11-22 01:37:36,457 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_switch_mac_port [2022-11-22 01:37:36,457 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_switch_mac_port [2022-11-22 01:37:36,457 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 01:37:36,457 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 01:37:36,457 INFO L130 BoogieDeclarations]: Found specification of procedure srom_latch [2022-11-22 01:37:36,458 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_latch [2022-11-22 01:37:36,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2022-11-22 01:37:36,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2022-11-22 01:37:36,459 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 01:37:36,459 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 01:37:36,459 INFO L130 BoogieDeclarations]: Found specification of procedure build_setup_frame [2022-11-22 01:37:36,459 INFO L138 BoogieDeclarations]: Found implementation of procedure build_setup_frame [2022-11-22 01:37:36,460 INFO L130 BoogieDeclarations]: Found specification of procedure type2_infoblock [2022-11-22 01:37:36,460 INFO L138 BoogieDeclarations]: Found implementation of procedure type2_infoblock [2022-11-22 01:37:36,460 INFO L130 BoogieDeclarations]: Found specification of procedure type0_infoblock [2022-11-22 01:37:36,460 INFO L138 BoogieDeclarations]: Found implementation of procedure type0_infoblock [2022-11-22 01:37:36,460 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-22 01:37:36,460 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-22 01:37:36,460 INFO L130 BoogieDeclarations]: Found specification of procedure DevicePresent [2022-11-22 01:37:36,461 INFO L138 BoogieDeclarations]: Found implementation of procedure DevicePresent [2022-11-22 01:37:36,461 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-22 01:37:36,462 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-22 01:37:36,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 01:37:36,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 01:37:36,463 INFO L130 BoogieDeclarations]: Found specification of procedure dc21143_infoleaf [2022-11-22 01:37:36,463 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21143_infoleaf [2022-11-22 01:37:36,463 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2022-11-22 01:37:36,463 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2022-11-22 01:37:36,464 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 01:37:36,464 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 01:37:36,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 01:37:36,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 01:37:36,464 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2022-11-22 01:37:36,465 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_sw_reset [2022-11-22 01:37:36,465 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_sw_reset [2022-11-22 01:37:36,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:37:36,465 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-11-22 01:37:36,465 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-11-22 01:37:36,465 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-22 01:37:36,465 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-22 01:37:36,466 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-22 01:37:36,466 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-22 01:37:36,466 INFO L130 BoogieDeclarations]: Found specification of procedure is_spd_100 [2022-11-22 01:37:36,466 INFO L138 BoogieDeclarations]: Found implementation of procedure is_spd_100 [2022-11-22 01:37:36,466 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 01:37:36,467 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 01:37:36,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:37:36,467 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-22 01:37:36,468 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-22 01:37:36,468 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_mii [2022-11-22 01:37:36,468 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_mii [2022-11-22 01:37:36,469 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_rx_buffs [2022-11-22 01:37:36,469 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_rx_buffs [2022-11-22 01:37:36,469 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 01:37:36,469 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 01:37:36,469 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-22 01:37:36,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-22 01:37:36,470 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-22 01:37:36,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-22 01:37:36,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:37:36,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 01:37:36,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 01:37:36,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:37:36,471 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 01:37:36,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 01:37:36,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:37:36,472 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:37:36,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 01:37:36,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 01:37:36,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 01:37:36,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 01:37:36,473 INFO L130 BoogieDeclarations]: Found specification of procedure ping_media [2022-11-22 01:37:36,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ping_media [2022-11-22 01:37:36,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 01:37:36,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 01:37:36,473 INFO L130 BoogieDeclarations]: Found specification of procedure srom_autoconf [2022-11-22 01:37:36,473 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_autoconf [2022-11-22 01:37:36,474 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 01:37:36,474 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 01:37:36,474 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-22 01:37:36,474 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-22 01:37:36,475 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_tx [2022-11-22 01:37:36,476 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_tx [2022-11-22 01:37:36,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-22 01:37:36,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-22 01:37:36,480 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-22 01:37:36,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-22 01:37:36,480 INFO L130 BoogieDeclarations]: Found specification of procedure srom_rd [2022-11-22 01:37:36,480 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_rd [2022-11-22 01:37:36,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:37:36,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 01:37:36,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 01:37:36,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 01:37:36,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 01:37:36,488 INFO L130 BoogieDeclarations]: Found specification of procedure SetMulticastFilter [2022-11-22 01:37:36,488 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMulticastFilter [2022-11-22 01:37:36,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:37:36,488 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ioctl [2022-11-22 01:37:36,488 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ioctl [2022-11-22 01:37:36,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 01:37:36,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 01:37:36,489 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 01:37:36,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 01:37:36,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:37:36,489 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:37:36,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:37:36,489 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_srom [2022-11-22 01:37:36,490 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_srom [2022-11-22 01:37:36,490 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-22 01:37:36,490 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-22 01:37:36,490 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:37:36,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:37:36,490 INFO L130 BoogieDeclarations]: Found specification of procedure mii_swap [2022-11-22 01:37:36,490 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_swap [2022-11-22 01:37:36,491 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_reset_phy [2022-11-22 01:37:36,491 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_reset_phy [2022-11-22 01:37:36,491 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_putb_cache [2022-11-22 01:37:36,491 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_putb_cache [2022-11-22 01:37:36,491 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-22 01:37:36,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-22 01:37:36,491 INFO L130 BoogieDeclarations]: Found specification of procedure dc21142_infoleaf [2022-11-22 01:37:36,492 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21142_infoleaf [2022-11-22 01:37:36,492 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 01:37:36,492 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 01:37:36,492 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_stats [2022-11-22 01:37:36,493 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_stats [2022-11-22 01:37:36,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 01:37:36,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 01:37:36,493 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-22 01:37:36,493 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-22 01:37:36,494 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init_connection [2022-11-22 01:37:36,494 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init_connection [2022-11-22 01:37:36,494 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wr [2022-11-22 01:37:36,494 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wr [2022-11-22 01:37:36,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:37:36,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:37:36,495 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_state [2022-11-22 01:37:36,495 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_state [2022-11-22 01:37:36,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-22 01:37:36,495 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-22 01:37:36,495 INFO L130 BoogieDeclarations]: Found specification of procedure type3_infoblock [2022-11-22 01:37:36,495 INFO L138 BoogieDeclarations]: Found implementation of procedure type3_infoblock [2022-11-22 01:37:36,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:37:36,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:37:36,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:37:36,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:37:36,496 INFO L130 BoogieDeclarations]: Found specification of procedure reset_init_sia [2022-11-22 01:37:36,496 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_init_sia [2022-11-22 01:37:36,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 01:37:36,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 01:37:36,497 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-22 01:37:36,498 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-22 01:37:36,498 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_alloc_rx_buff [2022-11-22 01:37:36,498 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_alloc_rx_buff [2022-11-22 01:37:36,498 INFO L130 BoogieDeclarations]: Found specification of procedure test_for_100Mb [2022-11-22 01:37:36,498 INFO L138 BoogieDeclarations]: Found implementation of procedure test_for_100Mb [2022-11-22 01:37:36,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 01:37:36,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 01:37:36,500 INFO L130 BoogieDeclarations]: Found specification of procedure type5_infoblock [2022-11-22 01:37:36,500 INFO L138 BoogieDeclarations]: Found implementation of procedure type5_infoblock [2022-11-22 01:37:36,500 INFO L130 BoogieDeclarations]: Found specification of procedure load_packet [2022-11-22 01:37:36,500 INFO L138 BoogieDeclarations]: Found implementation of procedure load_packet [2022-11-22 01:37:36,500 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140m_autoconf [2022-11-22 01:37:36,501 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140m_autoconf [2022-11-22 01:37:36,501 INFO L130 BoogieDeclarations]: Found specification of procedure is_100_up [2022-11-22 01:37:36,501 INFO L138 BoogieDeclarations]: Found implementation of procedure is_100_up [2022-11-22 01:37:36,501 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_open [2022-11-22 01:37:36,501 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_open [2022-11-22 01:37:36,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:37:36,501 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:37:36,501 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ta [2022-11-22 01:37:36,502 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ta [2022-11-22 01:37:36,502 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 01:37:36,502 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 01:37:36,502 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_autoconf [2022-11-22 01:37:36,502 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_autoconf [2022-11-22 01:37:36,502 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-22 01:37:36,502 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-22 01:37:36,502 INFO L130 BoogieDeclarations]: Found specification of procedure test_mii_reg [2022-11-22 01:37:36,503 INFO L138 BoogieDeclarations]: Found implementation of procedure test_mii_reg [2022-11-22 01:37:36,503 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_cache_state [2022-11-22 01:37:36,503 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_cache_state [2022-11-22 01:37:36,503 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-22 01:37:36,503 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-22 01:37:36,503 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_pci_remove [2022-11-22 01:37:36,503 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_pci_remove [2022-11-22 01:37:36,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:37:36,504 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_media [2022-11-22 01:37:36,504 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_media [2022-11-22 01:37:36,504 INFO L130 BoogieDeclarations]: Found specification of procedure autoconf_media [2022-11-22 01:37:36,504 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconf_media [2022-11-22 01:37:36,504 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_autoconf [2022-11-22 01:37:36,504 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_autoconf [2022-11-22 01:37:36,504 INFO L130 BoogieDeclarations]: Found specification of procedure mii_rd [2022-11-22 01:37:36,505 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_rd [2022-11-22 01:37:36,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:37:36,505 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ast [2022-11-22 01:37:36,505 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ast [2022-11-22 01:37:36,505 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-11-22 01:37:36,505 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-11-22 01:37:36,505 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2022-11-22 01:37:36,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2022-11-22 01:37:36,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:37:36,506 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-22 01:37:36,506 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-22 01:37:36,506 INFO L130 BoogieDeclarations]: Found specification of procedure is_10_up [2022-11-22 01:37:36,506 INFO L138 BoogieDeclarations]: Found implementation of procedure is_10_up [2022-11-22 01:37:36,506 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-22 01:37:36,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-22 01:37:36,507 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-22 01:37:36,511 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-22 01:37:36,511 INFO L130 BoogieDeclarations]: Found specification of procedure is_anc_capable [2022-11-22 01:37:36,511 INFO L138 BoogieDeclarations]: Found implementation of procedure is_anc_capable [2022-11-22 01:37:36,512 INFO L130 BoogieDeclarations]: Found specification of procedure type1_infoblock [2022-11-22 01:37:36,512 INFO L138 BoogieDeclarations]: Found implementation of procedure type1_infoblock [2022-11-22 01:37:36,512 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 01:37:36,512 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 01:37:36,512 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-22 01:37:36,512 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-22 01:37:36,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-22 01:37:36,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-22 01:37:36,514 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140_infoleaf [2022-11-22 01:37:36,514 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140_infoleaf [2022-11-22 01:37:36,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 01:37:36,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 01:37:36,515 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-22 01:37:36,515 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-22 01:37:36,515 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_queue_pkt [2022-11-22 01:37:36,515 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_queue_pkt [2022-11-22 01:37:36,515 INFO L130 BoogieDeclarations]: Found specification of procedure test_media [2022-11-22 01:37:36,515 INFO L138 BoogieDeclarations]: Found implementation of procedure test_media [2022-11-22 01:37:36,515 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buffs [2022-11-22 01:37:36,515 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buffs [2022-11-22 01:37:36,516 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2022-11-22 01:37:36,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2022-11-22 01:37:36,516 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-22 01:37:36,516 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-22 01:37:36,516 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-22 01:37:36,516 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-22 01:37:36,516 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 01:37:36,516 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 01:37:36,517 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init [2022-11-22 01:37:36,517 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init [2022-11-22 01:37:36,517 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-22 01:37:36,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-22 01:37:36,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_73 [2022-11-22 01:37:36,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_73 [2022-11-22 01:37:36,517 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_infoleaf [2022-11-22 01:37:36,517 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_infoleaf [2022-11-22 01:37:36,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:37:36,518 INFO L130 BoogieDeclarations]: Found specification of procedure srom_exec [2022-11-22 01:37:36,518 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_exec [2022-11-22 01:37:36,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:37:36,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:37:36,518 INFO L130 BoogieDeclarations]: Found specification of procedure gep_wr [2022-11-22 01:37:36,518 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_wr [2022-11-22 01:37:36,518 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-22 01:37:36,518 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-22 01:37:36,519 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_srom [2022-11-22 01:37:36,519 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_srom [2022-11-22 01:37:36,519 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-22 01:37:36,519 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-22 01:37:36,519 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_cache [2022-11-22 01:37:36,519 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_cache [2022-11-22 01:37:36,519 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_suspect_state [2022-11-22 01:37:36,519 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_suspect_state [2022-11-22 01:37:36,520 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_mii [2022-11-22 01:37:36,520 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_mii [2022-11-22 01:37:36,520 INFO L130 BoogieDeclarations]: Found specification of procedure compact_infoblock [2022-11-22 01:37:36,520 INFO L138 BoogieDeclarations]: Found implementation of procedure compact_infoblock [2022-11-22 01:37:36,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 01:37:36,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 01:37:36,520 INFO L130 BoogieDeclarations]: Found specification of procedure gep_rd [2022-11-22 01:37:36,520 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_rd [2022-11-22 01:37:36,521 INFO L130 BoogieDeclarations]: Found specification of procedure mii_address [2022-11-22 01:37:36,521 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_address [2022-11-22 01:37:36,521 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buff [2022-11-22 01:37:36,521 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buff [2022-11-22 01:37:36,521 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_setup_intr [2022-11-22 01:37:36,521 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_setup_intr [2022-11-22 01:37:36,521 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_save_skbs [2022-11-22 01:37:36,521 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_save_skbs [2022-11-22 01:37:36,522 INFO L130 BoogieDeclarations]: Found specification of procedure dc2114x_autoconf [2022-11-22 01:37:36,522 INFO L138 BoogieDeclarations]: Found implementation of procedure dc2114x_autoconf [2022-11-22 01:37:36,522 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-22 01:37:36,522 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-22 01:37:36,522 INFO L130 BoogieDeclarations]: Found specification of procedure srom_map_media [2022-11-22 01:37:36,522 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_map_media [2022-11-22 01:37:36,522 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_strncmp [2022-11-22 01:37:36,522 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_strncmp [2022-11-22 01:37:36,523 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-22 01:37:36,523 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-22 01:37:36,523 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_close [2022-11-22 01:37:36,523 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_close [2022-11-22 01:37:36,523 INFO L130 BoogieDeclarations]: Found specification of procedure yawn [2022-11-22 01:37:36,523 INFO L138 BoogieDeclarations]: Found implementation of procedure yawn [2022-11-22 01:37:36,523 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wdata [2022-11-22 01:37:36,523 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wdata [2022-11-22 01:37:36,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:37:36,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 01:37:36,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 01:37:36,524 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-22 01:37:37,998 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:37:38,007 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:37:38,435 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:37:58,938 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 01:37:59,296 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:38:03,693 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:38:03,693 INFO L300 CfgBuilder]: Removed 18 assume(true) statements. [2022-11-22 01:38:03,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:38:03 BoogieIcfgContainer [2022-11-22 01:38:03,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:38:03,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:38:03,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:38:03,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:38:03,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:37:29" (1/3) ... [2022-11-22 01:38:03,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a20cb85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:38:03, skipping insertion in model container [2022-11-22 01:38:03,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:35" (2/3) ... [2022-11-22 01:38:03,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a20cb85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:38:03, skipping insertion in model container [2022-11-22 01:38:03,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:38:03" (3/3) ... [2022-11-22 01:38:03,714 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-11-22 01:38:03,734 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:38:03,734 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-22 01:38:03,861 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:38:03,870 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;@5e32e89e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:38:03,870 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 01:38:03,886 INFO L276 IsEmpty]: Start isEmpty. Operand has 3050 states, 1915 states have (on average 1.348302872062663) internal successors, (2582), 1977 states have internal predecessors, (2582), 996 states have call successors, (996), 153 states have call predecessors, (996), 152 states have return successors, (989), 975 states have call predecessors, (989), 989 states have call successors, (989) [2022-11-22 01:38:03,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-22 01:38:03,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:38:03,924 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:38:03,924 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:38:03,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:38:03,934 INFO L85 PathProgramCache]: Analyzing trace with hash -203009381, now seen corresponding path program 1 times [2022-11-22 01:38:03,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:38:03,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41082506] [2022-11-22 01:38:03,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:38:03,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:38:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:38:04,936 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-22 01:38:04,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:38:04,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41082506] [2022-11-22 01:38:04,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41082506] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:38:04,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:38:04,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:38:04,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020466744] [2022-11-22 01:38:04,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:38:04,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:38:04,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:38:04,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:38:04,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:38:04,987 INFO L87 Difference]: Start difference. First operand has 3050 states, 1915 states have (on average 1.348302872062663) internal successors, (2582), 1977 states have internal predecessors, (2582), 996 states have call successors, (996), 153 states have call predecessors, (996), 152 states have return successors, (989), 975 states have call predecessors, (989), 989 states have call successors, (989) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-22 01:38:07,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:38:13,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:38:13,205 INFO L93 Difference]: Finished difference Result 8932 states and 13716 transitions. [2022-11-22 01:38:13,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:38:13,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 167 [2022-11-22 01:38:13,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:38:13,271 INFO L225 Difference]: With dead ends: 8932 [2022-11-22 01:38:13,271 INFO L226 Difference]: Without dead ends: 5899 [2022-11-22 01:38:13,306 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 [2022-11-22 01:38:13,309 INFO L413 NwaCegarLoop]: 4874 mSDtfsCounter, 4360 mSDsluCounter, 3906 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4360 SdHoareTripleChecker+Valid, 8780 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:38:13,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4360 Valid, 8780 Invalid, 1072 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1068 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-11-22 01:38:13,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5899 states. [2022-11-22 01:38:13,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5899 to 5895. [2022-11-22 01:38:13,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5895 states, 3686 states have (on average 1.3464460119370592) internal successors, (4963), 3778 states have internal predecessors, (4963), 1905 states have call successors, (1905), 302 states have call predecessors, (1905), 301 states have return successors, (1902), 1874 states have call predecessors, (1902), 1902 states have call successors, (1902) [2022-11-22 01:38:13,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5895 states to 5895 states and 8770 transitions. [2022-11-22 01:38:13,871 INFO L78 Accepts]: Start accepts. Automaton has 5895 states and 8770 transitions. Word has length 167 [2022-11-22 01:38:13,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:38:13,875 INFO L495 AbstractCegarLoop]: Abstraction has 5895 states and 8770 transitions. [2022-11-22 01:38:13,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-22 01:38:13,876 INFO L276 IsEmpty]: Start isEmpty. Operand 5895 states and 8770 transitions. [2022-11-22 01:38:13,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-22 01:38:13,892 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:38:13,893 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:38:13,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:38:13,895 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:38:13,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:38:13,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1267997438, now seen corresponding path program 1 times [2022-11-22 01:38:13,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:38:13,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894783378] [2022-11-22 01:38:13,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:38:13,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:38:14,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:38:14,404 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-22 01:38:14,405 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:38:14,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894783378] [2022-11-22 01:38:14,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894783378] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:38:14,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:38:14,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:38:14,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710705409] [2022-11-22 01:38:14,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:38:14,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:38:14,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:38:14,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:38:14,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:38:14,410 INFO L87 Difference]: Start difference. First operand 5895 states and 8770 transitions. 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) [2022-11-22 01:38:15,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:38:17,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:38:23,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:38:23,000 INFO L93 Difference]: Finished difference Result 17335 states and 26106 transitions. [2022-11-22 01:38:23,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:38:23,001 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 173 [2022-11-22 01:38:23,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:38:23,108 INFO L225 Difference]: With dead ends: 17335 [2022-11-22 01:38:23,108 INFO L226 Difference]: Without dead ends: 11471 [2022-11-22 01:38:23,161 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 [2022-11-22 01:38:23,162 INFO L413 NwaCegarLoop]: 4937 mSDtfsCounter, 4287 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4287 SdHoareTripleChecker+Valid, 8894 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:38:23,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4287 Valid, 8894 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1064 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2022-11-22 01:38:23,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11471 states. [2022-11-22 01:38:24,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11471 to 11441. [2022-11-22 01:38:24,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11441 states, 7159 states have (on average 1.3476742561810309) internal successors, (9648), 7347 states have internal predecessors, (9648), 3684 states have call successors, (3684), 600 states have call predecessors, (3684), 595 states have return successors, (4005), 3613 states have call predecessors, (4005), 3681 states have call successors, (4005) [2022-11-22 01:38:24,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11441 states to 11441 states and 17337 transitions. [2022-11-22 01:38:24,187 INFO L78 Accepts]: Start accepts. Automaton has 11441 states and 17337 transitions. Word has length 173 [2022-11-22 01:38:24,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:38:24,188 INFO L495 AbstractCegarLoop]: Abstraction has 11441 states and 17337 transitions. [2022-11-22 01:38:24,189 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) [2022-11-22 01:38:24,189 INFO L276 IsEmpty]: Start isEmpty. Operand 11441 states and 17337 transitions. [2022-11-22 01:38:24,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-22 01:38:24,201 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:38:24,202 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:38:24,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:38:24,202 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)] === [2022-11-22 01:38:24,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:38:24,212 INFO L85 PathProgramCache]: Analyzing trace with hash -496936093, now seen corresponding path program 1 times [2022-11-22 01:38:24,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:38:24,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181589399] [2022-11-22 01:38:24,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:38:24,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:38:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:38:24,665 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-22 01:38:24,666 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:38:24,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181589399] [2022-11-22 01:38:24,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181589399] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:38:24,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:38:24,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:38:24,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951880780] [2022-11-22 01:38:24,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:38:24,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:38:24,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:38:24,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:38:24,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:38:24,675 INFO L87 Difference]: Start difference. First operand 11441 states and 17337 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-22 01:38:26,719 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 [] [2022-11-22 01:38:33,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:38:33,402 INFO L93 Difference]: Finished difference Result 34153 states and 51751 transitions. [2022-11-22 01:38:33,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:38:33,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 182 [2022-11-22 01:38:33,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:38:33,604 INFO L225 Difference]: With dead ends: 34153 [2022-11-22 01:38:33,604 INFO L226 Difference]: Without dead ends: 22743 [2022-11-22 01:38:33,707 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 [2022-11-22 01:38:33,710 INFO L413 NwaCegarLoop]: 4865 mSDtfsCounter, 4340 mSDsluCounter, 3893 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4340 SdHoareTripleChecker+Valid, 8758 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:38:33,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4340 Valid, 8758 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1086 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2022-11-22 01:38:33,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22743 states. [2022-11-22 01:38:35,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22743 to 22717. [2022-11-22 01:38:35,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22717 states, 14227 states have (on average 1.3464539256343573) internal successors, (19156), 14601 states have internal predecessors, (19156), 7298 states have call successors, (7298), 1198 states have call predecessors, (7298), 1189 states have return successors, (7951), 7157 states have call predecessors, (7951), 7295 states have call successors, (7951) [2022-11-22 01:38:35,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22717 states to 22717 states and 34405 transitions. [2022-11-22 01:38:35,729 INFO L78 Accepts]: Start accepts. Automaton has 22717 states and 34405 transitions. Word has length 182 [2022-11-22 01:38:35,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:38:35,730 INFO L495 AbstractCegarLoop]: Abstraction has 22717 states and 34405 transitions. [2022-11-22 01:38:35,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-22 01:38:35,731 INFO L276 IsEmpty]: Start isEmpty. Operand 22717 states and 34405 transitions. [2022-11-22 01:38:35,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-22 01:38:35,741 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:38:35,742 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:38:35,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:38:35,742 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)] === [2022-11-22 01:38:35,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:38:35,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1090081113, now seen corresponding path program 1 times [2022-11-22 01:38:35,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:38:35,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329654173] [2022-11-22 01:38:35,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:38:35,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:38:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:38:36,180 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-22 01:38:36,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:38:36,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329654173] [2022-11-22 01:38:36,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329654173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:38:36,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:38:36,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:38:36,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067328378] [2022-11-22 01:38:36,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:38:36,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:38:36,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:38:36,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:38:36,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:38:36,184 INFO L87 Difference]: Start difference. First operand 22717 states and 34405 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-22 01:38:38,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:38:44,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:38:44,923 INFO L93 Difference]: Finished difference Result 67873 states and 102795 transitions. [2022-11-22 01:38:44,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:38:44,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 181 [2022-11-22 01:38:44,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:38:45,537 INFO L225 Difference]: With dead ends: 67873 [2022-11-22 01:38:45,537 INFO L226 Difference]: Without dead ends: 45187 [2022-11-22 01:38:45,901 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 [2022-11-22 01:38:45,902 INFO L413 NwaCegarLoop]: 4866 mSDtfsCounter, 4341 mSDsluCounter, 3893 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4341 SdHoareTripleChecker+Valid, 8759 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:38:45,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4341 Valid, 8759 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1086 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-11-22 01:38:45,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45187 states. [2022-11-22 01:38:48,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45187 to 45161. [2022-11-22 01:38:48,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45161 states, 28295 states have (on average 1.3449726100017672) internal successors, (38056), 29041 states have internal predecessors, (38056), 14486 states have call successors, (14486), 2394 states have call predecessors, (14486), 2377 states have return successors, (15819), 14205 states have call predecessors, (15819), 14483 states have call successors, (15819) [2022-11-22 01:38:48,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45161 states to 45161 states and 68361 transitions. [2022-11-22 01:38:48,854 INFO L78 Accepts]: Start accepts. Automaton has 45161 states and 68361 transitions. Word has length 181 [2022-11-22 01:38:48,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:38:48,855 INFO L495 AbstractCegarLoop]: Abstraction has 45161 states and 68361 transitions. [2022-11-22 01:38:48,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-22 01:38:48,856 INFO L276 IsEmpty]: Start isEmpty. Operand 45161 states and 68361 transitions. [2022-11-22 01:38:48,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-22 01:38:48,860 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:38:48,861 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:38:48,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:38:48,861 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:38:48,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:38:48,862 INFO L85 PathProgramCache]: Analyzing trace with hash -547898432, now seen corresponding path program 1 times [2022-11-22 01:38:48,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:38:48,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745996273] [2022-11-22 01:38:48,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:38:48,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:38:48,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:38:49,249 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-22 01:38:49,249 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:38:49,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745996273] [2022-11-22 01:38:49,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745996273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:38:49,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:38:49,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:38:49,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711013757] [2022-11-22 01:38:49,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:38:49,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:38:49,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:38:49,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:38:49,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:38:49,252 INFO L87 Difference]: Start difference. First operand 45161 states and 68361 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-22 01:38:51,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:38:59,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:38:59,588 INFO L93 Difference]: Finished difference Result 134989 states and 204319 transitions. [2022-11-22 01:38:59,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:38:59,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 184 [2022-11-22 01:38:59,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:39:00,548 INFO L225 Difference]: With dead ends: 134989 [2022-11-22 01:39:00,548 INFO L226 Difference]: Without dead ends: 89859 [2022-11-22 01:39:00,915 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 [2022-11-22 01:39:00,916 INFO L413 NwaCegarLoop]: 4865 mSDtfsCounter, 4338 mSDsluCounter, 3893 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4338 SdHoareTripleChecker+Valid, 8758 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:39:00,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4338 Valid, 8758 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1086 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-11-22 01:39:01,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89859 states. [2022-11-22 01:39:05,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89859 to 89809. [2022-11-22 01:39:06,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89809 states, 56271 states have (on average 1.3434984272538253) internal successors, (75600), 57761 states have internal predecessors, (75600), 28782 states have call successors, (28782), 4786 states have call predecessors, (28782), 4753 states have return successors, (31483), 28221 states have call predecessors, (31483), 28779 states have call successors, (31483) [2022-11-22 01:39:07,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89809 states to 89809 states and 135865 transitions. [2022-11-22 01:39:07,225 INFO L78 Accepts]: Start accepts. Automaton has 89809 states and 135865 transitions. Word has length 184 [2022-11-22 01:39:07,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:39:07,232 INFO L495 AbstractCegarLoop]: Abstraction has 89809 states and 135865 transitions. [2022-11-22 01:39:07,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-22 01:39:07,233 INFO L276 IsEmpty]: Start isEmpty. Operand 89809 states and 135865 transitions. [2022-11-22 01:39:07,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-22 01:39:07,239 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:39:07,239 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:39:07,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:39:07,239 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:39:07,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:39:07,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1846623500, now seen corresponding path program 1 times [2022-11-22 01:39:07,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:39:07,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035236870] [2022-11-22 01:39:07,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:39:07,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:39:07,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:39:07,566 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-22 01:39:07,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:39:07,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035236870] [2022-11-22 01:39:07,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035236870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:39:07,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:39:07,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:39:07,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110532268] [2022-11-22 01:39:07,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:39:07,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:39:07,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:39:07,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:39:07,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:39:07,569 INFO L87 Difference]: Start difference. First operand 89809 states and 135865 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, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-22 01:39:09,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []