./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-renesas-sh_eth.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c465e8-bd73-413a-99bd-31e272b027a9/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c465e8-bd73-413a-99bd-31e272b027a9/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c465e8-bd73-413a-99bd-31e272b027a9/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c465e8-bd73-413a-99bd-31e272b027a9/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c465e8-bd73-413a-99bd-31e272b027a9/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c465e8-bd73-413a-99bd-31e272b027a9/bin/utaipan-I9t0OCRTmS --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 39973bb7b50b53c067a6906d32b40b2185ea2f6a6ba2da336135f31e07490738 --- 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-8393723 [2022-11-19 08:18:24,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:18:24,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:18:24,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:18:24,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:18:24,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:18:24,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:18:24,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:18:24,351 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:18:24,359 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:18:24,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:18:24,363 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:18:24,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:18:24,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:18:24,368 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:18:24,369 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:18:24,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:18:24,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:18:24,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:18:24,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:18:24,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:18:24,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:18:24,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:18:24,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:18:24,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:18:24,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:18:24,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:18:24,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:18:24,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:18:24,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:18:24,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:18:24,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:18:24,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:18:24,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:18:24,405 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:18:24,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:18:24,406 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:18:24,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:18:24,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:18:24,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:18:24,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:18:24,409 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c465e8-bd73-413a-99bd-31e272b027a9/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:18:24,445 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:18:24,450 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:18:24,451 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:18:24,451 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:18:24,452 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:18:24,452 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:18:24,452 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:18:24,453 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:18:24,453 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:18:24,453 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:18:24,454 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:18:24,454 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:18:24,454 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:18:24,455 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:18:24,455 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:18:24,455 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:18:24,455 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:18:24,456 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:18:24,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:18:24,456 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:18:24,457 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:18:24,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:18:24,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:18:24,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:18:24,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:18:24,459 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:18:24,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:18:24,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:18:24,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:18:24,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:18:24,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:18:24,461 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:18:24,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:18:24,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:18:24,461 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:18:24,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:18:24,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:18:24,462 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:18:24,462 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_b8c465e8-bd73-413a-99bd-31e272b027a9/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c465e8-bd73-413a-99bd-31e272b027a9/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39973bb7b50b53c067a6906d32b40b2185ea2f6a6ba2da336135f31e07490738 [2022-11-19 08:18:24,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:18:24,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:18:24,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:18:24,769 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:18:24,770 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:18:24,772 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c465e8-bd73-413a-99bd-31e272b027a9/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i [2022-11-19 08:18:24,853 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c465e8-bd73-413a-99bd-31e272b027a9/bin/utaipan-I9t0OCRTmS/data/983f6e94a/f98d39970d0b4aa9ab6bc30223fda22f/FLAG6bb209a6f [2022-11-19 08:18:25,949 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:18:25,950 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c465e8-bd73-413a-99bd-31e272b027a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i [2022-11-19 08:18:26,016 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c465e8-bd73-413a-99bd-31e272b027a9/bin/utaipan-I9t0OCRTmS/data/983f6e94a/f98d39970d0b4aa9ab6bc30223fda22f/FLAG6bb209a6f [2022-11-19 08:18:26,233 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c465e8-bd73-413a-99bd-31e272b027a9/bin/utaipan-I9t0OCRTmS/data/983f6e94a/f98d39970d0b4aa9ab6bc30223fda22f [2022-11-19 08:18:26,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:18:26,237 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:18:26,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:18:26,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:18:26,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:18:26,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:18:26" (1/1) ... [2022-11-19 08:18:26,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6afc16b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:26, skipping insertion in model container [2022-11-19 08:18:26,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:18:26" (1/1) ... [2022-11-19 08:18:26,257 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:18:26,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:18:31,581 WARN L234 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_b8c465e8-bd73-413a-99bd-31e272b027a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i[541045,541058] [2022-11-19 08:18:31,586 WARN L234 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_b8c465e8-bd73-413a-99bd-31e272b027a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i[541214,541227] [2022-11-19 08:18:31,586 WARN L234 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_b8c465e8-bd73-413a-99bd-31e272b027a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i[541381,541394] [2022-11-19 08:18:31,587 WARN L234 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_b8c465e8-bd73-413a-99bd-31e272b027a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i[541549,541562] [2022-11-19 08:18:31,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:18:31,668 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:18:32,162 WARN L234 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_b8c465e8-bd73-413a-99bd-31e272b027a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i[541045,541058] [2022-11-19 08:18:32,162 WARN L234 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_b8c465e8-bd73-413a-99bd-31e272b027a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i[541214,541227] [2022-11-19 08:18:32,163 WARN L234 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_b8c465e8-bd73-413a-99bd-31e272b027a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i[541381,541394] [2022-11-19 08:18:32,163 WARN L234 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_b8c465e8-bd73-413a-99bd-31e272b027a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i[541549,541562] [2022-11-19 08:18:32,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:18:32,611 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:18:32,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:32 WrapperNode [2022-11-19 08:18:32,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:18:32,613 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:18:32,613 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:18:32,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:18:32,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:32" (1/1) ... [2022-11-19 08:18:32,750 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:32" (1/1) ... [2022-11-19 08:18:33,063 INFO L138 Inliner]: procedures = 680, calls = 3806, calls flagged for inlining = 403, calls inlined = 378, statements flattened = 9118 [2022-11-19 08:18:33,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:18:33,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:18:33,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:18:33,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:18:33,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:32" (1/1) ... [2022-11-19 08:18:33,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:32" (1/1) ... [2022-11-19 08:18:33,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:32" (1/1) ... [2022-11-19 08:18:33,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:32" (1/1) ... [2022-11-19 08:18:33,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:32" (1/1) ... [2022-11-19 08:18:33,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:32" (1/1) ... [2022-11-19 08:18:33,550 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:32" (1/1) ... [2022-11-19 08:18:33,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:32" (1/1) ... [2022-11-19 08:18:33,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:18:33,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:18:33,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:18:33,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:18:33,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:32" (1/1) ... [2022-11-19 08:18:33,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:18:33,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c465e8-bd73-413a-99bd-31e272b027a9/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:18:33,664 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c465e8-bd73-413a-99bd-31e272b027a9/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:18:33,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c465e8-bd73-413a-99bd-31e272b027a9/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:18:33,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 08:18:33,708 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 08:18:33,708 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-19 08:18:33,708 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-19 08:18:33,708 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_sset_count [2022-11-19 08:18:33,709 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_sset_count [2022-11-19 08:18:33,709 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_write [2022-11-19 08:18:33,709 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_write [2022-11-19 08:18:33,709 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-19 08:18:33,709 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-19 08:18:33,709 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_select_mii [2022-11-19 08:18:33,710 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_select_mii [2022-11-19 08:18:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_edmac [2022-11-19 08:18:33,710 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_edmac [2022-11-19 08:18:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 08:18:33,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 08:18:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_write [2022-11-19 08:18:33,711 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_write [2022-11-19 08:18:33,711 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_op_get_link [2022-11-19 08:18:33,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_op_get_link [2022-11-19 08:18:33,711 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_disable_cam_entry_table [2022-11-19 08:18:33,711 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_disable_cam_entry_table [2022-11-19 08:18:33,711 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-19 08:18:33,712 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-19 08:18:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 08:18:33,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 08:18:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_giga [2022-11-19 08:18:33,712 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_giga [2022-11-19 08:18:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2022-11-19 08:18:33,713 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2022-11-19 08:18:33,713 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 08:18:33,713 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 08:18:33,713 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-19 08:18:33,713 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-19 08:18:33,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_63 [2022-11-19 08:18:33,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_63 [2022-11-19 08:18:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure bb_clr [2022-11-19 08:18:33,714 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_clr [2022-11-19 08:18:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-19 08:18:33,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-19 08:18:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_free_dma_buffer [2022-11-19 08:18:33,715 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_free_dma_buffer [2022-11-19 08:18:33,715 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_busy [2022-11-19 08:18:33,715 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_busy [2022-11-19 08:18:33,715 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_r8a777x [2022-11-19 08:18:33,715 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_r8a777x [2022-11-19 08:18:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2022-11-19 08:18:33,716 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2022-11-19 08:18:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-19 08:18:33,716 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-19 08:18:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 08:18:33,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 08:18:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-19 08:18:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-19 08:18:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-19 08:18:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-19 08:18:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 08:18:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 08:18:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tx_timeout [2022-11-19 08:18:33,718 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tx_timeout [2022-11-19 08:18:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-11-19 08:18:33,718 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-11-19 08:18:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:18:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_ring_free [2022-11-19 08:18:33,718 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_ring_free [2022-11-19 08:18:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-19 08:18:33,719 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-19 08:18:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 08:18:33,719 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 08:18:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 08:18:33,720 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 08:18:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_chip_reset [2022-11-19 08:18:33,720 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_chip_reset [2022-11-19 08:18:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 08:18:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 08:18:33,720 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 08:18:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-19 08:18:33,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-19 08:18:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 08:18:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_ringparam [2022-11-19 08:18:33,721 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_ringparam [2022-11-19 08:18:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_start_xmit [2022-11-19 08:18:33,722 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_start_xmit [2022-11-19 08:18:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 08:18:33,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 08:18:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:18:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_nway_reset [2022-11-19 08:18:33,722 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_nway_reset [2022-11-19 08:18:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 08:18:33,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 08:18:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_close [2022-11-19 08:18:33,723 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_close [2022-11-19 08:18:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_soft_swap [2022-11-19 08:18:33,723 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_soft_swap [2022-11-19 08:18:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 08:18:33,724 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 08:18:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 08:18:33,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 08:18:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure sh_get_mdio [2022-11-19 08:18:33,724 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_get_mdio [2022-11-19 08:18:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_find_entry [2022-11-19 08:18:33,725 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_find_entry [2022-11-19 08:18:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_vlan_rx_add_vid [2022-11-19 08:18:33,725 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_vlan_rx_add_vid [2022-11-19 08:18:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_ring_init [2022-11-19 08:18:33,725 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_ring_init [2022-11-19 08:18:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 08:18:33,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 08:18:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-11-19 08:18:33,726 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-11-19 08:18:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:18:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-19 08:18:33,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-19 08:18:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-19 08:18:33,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-19 08:18:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-19 08:18:33,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-19 08:18:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-19 08:18:33,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-19 08:18:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-19 08:18:33,728 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-19 08:18:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_ringparam [2022-11-19 08:18:33,728 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_ringparam [2022-11-19 08:18:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:18:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 08:18:33,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 08:18:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 08:18:33,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 08:18:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:18:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 08:18:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 08:18:33,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 08:18:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 08:18:33,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 08:18:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_rcv_snd_enable [2022-11-19 08:18:33,730 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_rcv_snd_enable [2022-11-19 08:18:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sh_eth_driver_exit_18_2 [2022-11-19 08:18:33,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sh_eth_driver_exit_18_2 [2022-11-19 08:18:33,731 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_get_offset [2022-11-19 08:18:33,731 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_get_offset [2022-11-19 08:18:33,731 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2022-11-19 08:18:33,731 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2022-11-19 08:18:33,731 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-19 08:18:33,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-19 08:18:33,732 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-11-19 08:18:33,732 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-11-19 08:18:33,732 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 08:18:33,732 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 08:18:33,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-19 08:18:33,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-19 08:18:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-19 08:18:33,733 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-19 08:18:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_get_post_bit [2022-11-19 08:18:33,733 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_get_post_bit [2022-11-19 08:18:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:18:33,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:18:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure free_mdio_bitbang [2022-11-19 08:18:33,734 INFO L138 BoogieDeclarations]: Found implementation of procedure free_mdio_bitbang [2022-11-19 08:18:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-19 08:18:33,734 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-19 08:18:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_do_ioctl [2022-11-19 08:18:33,734 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_do_ioctl [2022-11-19 08:18:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_disable_cam_entry_post [2022-11-19 08:18:33,735 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_disable_cam_entry_post [2022-11-19 08:18:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 08:18:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 08:18:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 08:18:33,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 08:18:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 08:18:33,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 08:18:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_drv_probe [2022-11-19 08:18:33,736 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_drv_probe [2022-11-19 08:18:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_read [2022-11-19 08:18:33,736 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_read [2022-11-19 08:18:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-19 08:18:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_vtag_index [2022-11-19 08:18:33,737 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_vtag_index [2022-11-19 08:18:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_edtrr_trns [2022-11-19 08:18:33,737 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_edtrr_trns [2022-11-19 08:18:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure devm_ioremap_resource [2022-11-19 08:18:33,737 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_ioremap_resource [2022-11-19 08:18:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:18:33,738 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:18:33,738 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_get_sync [2022-11-19 08:18:33,738 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_get_sync [2022-11-19 08:18:33,738 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_duplex [2022-11-19 08:18:33,738 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_duplex [2022-11-19 08:18:33,738 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 08:18:33,739 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 08:18:33,739 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_get_post_reg_offset [2022-11-19 08:18:33,739 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_get_post_reg_offset [2022-11-19 08:18:33,739 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_chip_reset_r8a7740 [2022-11-19 08:18:33,739 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_chip_reset_r8a7740 [2022-11-19 08:18:33,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-19 08:18:33,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-19 08:18:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_chip_reset_giga [2022-11-19 08:18:33,740 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_chip_reset_giga [2022-11-19 08:18:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-19 08:18:33,740 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-19 08:18:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:18:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-19 08:18:33,741 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-19 08:18:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:18:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_runtime_nop [2022-11-19 08:18:33,741 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_runtime_nop [2022-11-19 08:18:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure __pm_runtime_resume [2022-11-19 08:18:33,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __pm_runtime_resume [2022-11-19 08:18:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:18:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_open [2022-11-19 08:18:33,742 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_open [2022-11-19 08:18:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 08:18:33,742 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 08:18:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_multicast_list [2022-11-19 08:18:33,743 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_multicast_list [2022-11-19 08:18:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 08:18:33,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 08:18:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_msglevel [2022-11-19 08:18:33,743 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_msglevel [2022-11-19 08:18:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-19 08:18:33,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-19 08:18:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_put_sync [2022-11-19 08:18:33,744 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_put_sync [2022-11-19 08:18:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_read_entry [2022-11-19 08:18:33,744 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_read_entry [2022-11-19 08:18:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_txfree [2022-11-19 08:18:33,744 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_txfree [2022-11-19 08:18:33,745 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_settings [2022-11-19 08:18:33,745 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_settings [2022-11-19 08:18:33,745 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-11-19 08:18:33,745 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-11-19 08:18:33,745 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_rcv_snd_disable [2022-11-19 08:18:33,745 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_rcv_snd_disable [2022-11-19 08:18:33,745 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-19 08:18:33,746 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-19 08:18:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-19 08:18:33,746 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-19 08:18:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_msglevel [2022-11-19 08:18:33,746 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_msglevel [2022-11-19 08:18:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-19 08:18:33,747 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-19 08:18:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_drv_remove [2022-11-19 08:18:33,747 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_drv_remove [2022-11-19 08:18:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 08:18:33,747 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 08:18:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_read [2022-11-19 08:18:33,748 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_read [2022-11-19 08:18:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_is_rz_fast_ether [2022-11-19 08:18:33,748 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_is_rz_fast_ether [2022-11-19 08:18:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure bb_set [2022-11-19 08:18:33,748 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_set [2022-11-19 08:18:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_settings [2022-11-19 08:18:33,748 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_settings [2022-11-19 08:18:33,749 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-19 08:18:33,749 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-19 08:18:33,749 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_strings [2022-11-19 08:18:33,749 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_strings [2022-11-19 08:18:33,749 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_ethtool_stats [2022-11-19 08:18:33,749 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_ethtool_stats [2022-11-19 08:18:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 08:18:33,750 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 08:18:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_dev_init [2022-11-19 08:18:33,750 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_dev_init [2022-11-19 08:18:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_sh_eth_private [2022-11-19 08:18:33,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_sh_eth_private [2022-11-19 08:18:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_stats [2022-11-19 08:18:33,751 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_stats [2022-11-19 08:18:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:18:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_vlan_rx_kill_vid [2022-11-19 08:18:33,751 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_vlan_rx_kill_vid [2022-11-19 08:18:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_sh7724 [2022-11-19 08:18:33,751 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_sh7724 [2022-11-19 08:18:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_adjust_link [2022-11-19 08:18:33,752 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_adjust_link [2022-11-19 08:18:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 08:18:33,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 08:18:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_purge_mcast [2022-11-19 08:18:33,752 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_purge_mcast [2022-11-19 08:18:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-19 08:18:33,753 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-19 08:18:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2022-11-19 08:18:33,753 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2022-11-19 08:18:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_sh_eth_private [2022-11-19 08:18:33,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_sh_eth_private [2022-11-19 08:18:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-19 08:18:33,753 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-19 08:18:33,754 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_is_gether [2022-11-19 08:18:33,754 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_is_gether [2022-11-19 08:18:33,754 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-19 08:18:33,754 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-19 08:18:33,754 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_sh7757 [2022-11-19 08:18:33,754 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_sh7757 [2022-11-19 08:18:33,754 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_receive_align [2022-11-19 08:18:33,755 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_receive_align [2022-11-19 08:18:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 08:18:33,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 08:18:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 08:18:33,755 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 08:18:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-19 08:18:33,756 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-19 08:18:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:18:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_write_entry [2022-11-19 08:18:33,756 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_write_entry [2022-11-19 08:18:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 08:18:33,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 08:18:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-19 08:18:33,757 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-19 08:18:35,160 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:18:35,164 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:18:35,682 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 08:19:16,042 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 08:19:16,243 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:19:19,090 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:19:19,091 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-19 08:19:19,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:19:19 BoogieIcfgContainer [2022-11-19 08:19:19,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:19:19,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:19:19,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:19:19,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:19:19,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:18:26" (1/3) ... [2022-11-19 08:19:19,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f3c65a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:19:19, skipping insertion in model container [2022-11-19 08:19:19,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:32" (2/3) ... [2022-11-19 08:19:19,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f3c65a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:19:19, skipping insertion in model container [2022-11-19 08:19:19,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:19:19" (3/3) ... [2022-11-19 08:19:19,109 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i [2022-11-19 08:19:19,131 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:19:19,131 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-19 08:19:19,225 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:19:19,231 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;@df83621, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:19:19,231 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-19 08:19:19,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 2580 states, 1552 states have (on average 1.3440721649484537) internal successors, (2086), 1618 states have internal predecessors, (2086), 888 states have call successors, (888), 144 states have call predecessors, (888), 143 states have return successors, (877), 851 states have call predecessors, (877), 877 states have call successors, (877) [2022-11-19 08:19:19,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2022-11-19 08:19:19,287 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:19:19,288 INFO L195 NwaCegarLoop]: trace histogram [53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:19:19,288 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:19:19,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:19:19,294 INFO L85 PathProgramCache]: Analyzing trace with hash 2097932895, now seen corresponding path program 1 times [2022-11-19 08:19:19,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:19:19,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369232974] [2022-11-19 08:19:19,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:19,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:19:20,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:20,989 INFO L134 CoverageAnalysis]: Checked inductivity of 10712 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10712 trivial. 0 not checked. [2022-11-19 08:19:20,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:19:20,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369232974] [2022-11-19 08:19:20,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369232974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:19:20,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:19:20,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:19:20,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722332493] [2022-11-19 08:19:20,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:19:21,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:19:21,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:19:21,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:19:21,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:19:21,058 INFO L87 Difference]: Start difference. First operand has 2580 states, 1552 states have (on average 1.3440721649484537) internal successors, (2086), 1618 states have internal predecessors, (2086), 888 states have call successors, (888), 144 states have call predecessors, (888), 143 states have return successors, (877), 851 states have call predecessors, (877), 877 states have call successors, (877) Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-19 08:19:23,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:19:27,671 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 [] [2022-11-19 08:19:29,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:19:29,310 INFO L93 Difference]: Finished difference Result 7284 states and 11179 transitions. [2022-11-19 08:19:29,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:19:29,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 539 [2022-11-19 08:19:29,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:19:29,388 INFO L225 Difference]: With dead ends: 7284 [2022-11-19 08:19:29,388 INFO L226 Difference]: Without dead ends: 4788 [2022-11-19 08:19:29,418 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 [2022-11-19 08:19:29,421 INFO L413 NwaCegarLoop]: 4096 mSDtfsCounter, 3418 mSDsluCounter, 3212 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3418 SdHoareTripleChecker+Valid, 7308 SdHoareTripleChecker+Invalid, 1155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:19:29,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3418 Valid, 7308 Invalid, 1155 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1148 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-11-19 08:19:29,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4788 states. [2022-11-19 08:19:29,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4788 to 4761. [2022-11-19 08:19:29,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4761 states, 2890 states have (on average 1.346712802768166) internal successors, (3892), 3005 states have internal predecessors, (3892), 1589 states have call successors, (1589), 284 states have call predecessors, (1589), 279 states have return successors, (1632), 1525 states have call predecessors, (1632), 1585 states have call successors, (1632) [2022-11-19 08:19:29,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4761 states to 4761 states and 7113 transitions. [2022-11-19 08:19:29,880 INFO L78 Accepts]: Start accepts. Automaton has 4761 states and 7113 transitions. Word has length 539 [2022-11-19 08:19:29,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:19:29,884 INFO L495 AbstractCegarLoop]: Abstraction has 4761 states and 7113 transitions. [2022-11-19 08:19:29,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-19 08:19:29,885 INFO L276 IsEmpty]: Start isEmpty. Operand 4761 states and 7113 transitions. [2022-11-19 08:19:29,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2022-11-19 08:19:29,905 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:19:29,906 INFO L195 NwaCegarLoop]: trace histogram [53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:19:29,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:19:29,907 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:19:29,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:19:29,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1203714918, now seen corresponding path program 1 times [2022-11-19 08:19:29,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:19:29,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607434795] [2022-11-19 08:19:29,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:29,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:19:30,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:30,936 INFO L134 CoverageAnalysis]: Checked inductivity of 10712 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10712 trivial. 0 not checked. [2022-11-19 08:19:30,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:19:30,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607434795] [2022-11-19 08:19:30,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607434795] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:19:30,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:19:30,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:19:30,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755645362] [2022-11-19 08:19:30,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:19:30,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:19:30,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:19:30,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:19:30,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:19:30,945 INFO L87 Difference]: Start difference. First operand 4761 states and 7113 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-19 08:19:33,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:19:37,814 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 [] [2022-11-19 08:19:39,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:19:39,072 INFO L93 Difference]: Finished difference Result 13812 states and 20617 transitions. [2022-11-19 08:19:39,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:19:39,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 541 [2022-11-19 08:19:39,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:19:39,155 INFO L225 Difference]: With dead ends: 13812 [2022-11-19 08:19:39,156 INFO L226 Difference]: Without dead ends: 9156 [2022-11-19 08:19:39,193 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 [2022-11-19 08:19:39,194 INFO L413 NwaCegarLoop]: 3943 mSDtfsCounter, 3344 mSDsluCounter, 3176 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3346 SdHoareTripleChecker+Valid, 7119 SdHoareTripleChecker+Invalid, 1160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:19:39,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3346 Valid, 7119 Invalid, 1160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1151 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-11-19 08:19:39,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9156 states. [2022-11-19 08:19:39,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9156 to 9152. [2022-11-19 08:19:39,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9152 states, 5594 states have (on average 1.3489452985341437) internal successors, (7546), 5809 states have internal predecessors, (7546), 3003 states have call successors, (3003), 561 states have call predecessors, (3003), 552 states have return successors, (3096), 2885 states have call predecessors, (3096), 2999 states have call successors, (3096) [2022-11-19 08:19:39,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9152 states to 9152 states and 13645 transitions. [2022-11-19 08:19:39,869 INFO L78 Accepts]: Start accepts. Automaton has 9152 states and 13645 transitions. Word has length 541 [2022-11-19 08:19:39,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:19:39,871 INFO L495 AbstractCegarLoop]: Abstraction has 9152 states and 13645 transitions. [2022-11-19 08:19:39,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-19 08:19:39,873 INFO L276 IsEmpty]: Start isEmpty. Operand 9152 states and 13645 transitions. [2022-11-19 08:19:39,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2022-11-19 08:19:39,891 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:19:39,891 INFO L195 NwaCegarLoop]: trace histogram [53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:19:39,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:19:39,892 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)] === [2022-11-19 08:19:39,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:19:39,894 INFO L85 PathProgramCache]: Analyzing trace with hash 657318652, now seen corresponding path program 1 times [2022-11-19 08:19:39,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:19:39,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705826559] [2022-11-19 08:19:39,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:39,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:19:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:40,901 INFO L134 CoverageAnalysis]: Checked inductivity of 10712 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10712 trivial. 0 not checked. [2022-11-19 08:19:40,901 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:19:40,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705826559] [2022-11-19 08:19:40,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705826559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:19:40,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:19:40,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:19:40,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474868814] [2022-11-19 08:19:40,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:19:40,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:19:40,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:19:40,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:19:40,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:19:40,908 INFO L87 Difference]: Start difference. First operand 9152 states and 13645 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-19 08:19:43,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:19:46,641 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 [] [2022-11-19 08:19:49,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:19:49,705 INFO L93 Difference]: Finished difference Result 26730 states and 40051 transitions. [2022-11-19 08:19:49,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:19:49,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 551 [2022-11-19 08:19:49,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:19:49,861 INFO L225 Difference]: With dead ends: 26730 [2022-11-19 08:19:49,861 INFO L226 Difference]: Without dead ends: 17683 [2022-11-19 08:19:49,939 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 [2022-11-19 08:19:49,943 INFO L413 NwaCegarLoop]: 3971 mSDtfsCounter, 3288 mSDsluCounter, 3184 mSDsCounter, 0 mSdLazyCounter, 1185 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3288 SdHoareTripleChecker+Valid, 7155 SdHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1185 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:19:49,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3288 Valid, 7155 Invalid, 1194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1185 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2022-11-19 08:19:49,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17683 states. [2022-11-19 08:19:51,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17683 to 17658. [2022-11-19 08:19:51,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17658 states, 10813 states have (on average 1.3469897345787478) internal successors, (14565), 11234 states have internal predecessors, (14565), 5742 states have call successors, (5742), 1117 states have call predecessors, (5742), 1100 states have return successors, (6203), 5511 states have call predecessors, (6203), 5738 states have call successors, (6203) [2022-11-19 08:19:51,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17658 states to 17658 states and 26510 transitions. [2022-11-19 08:19:51,382 INFO L78 Accepts]: Start accepts. Automaton has 17658 states and 26510 transitions. Word has length 551 [2022-11-19 08:19:51,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:19:51,384 INFO L495 AbstractCegarLoop]: Abstraction has 17658 states and 26510 transitions. [2022-11-19 08:19:51,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-19 08:19:51,384 INFO L276 IsEmpty]: Start isEmpty. Operand 17658 states and 26510 transitions. [2022-11-19 08:19:51,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2022-11-19 08:19:51,399 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:19:51,400 INFO L195 NwaCegarLoop]: trace histogram [53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:19:51,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:19:51,400 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)] === [2022-11-19 08:19:51,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:19:51,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1191096711, now seen corresponding path program 1 times [2022-11-19 08:19:51,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:19:51,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207936412] [2022-11-19 08:19:51,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:51,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:19:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:52,173 INFO L134 CoverageAnalysis]: Checked inductivity of 10712 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10712 trivial. 0 not checked. [2022-11-19 08:19:52,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:19:52,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207936412] [2022-11-19 08:19:52,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207936412] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:19:52,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:19:52,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:19:52,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305891073] [2022-11-19 08:19:52,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:19:52,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:19:52,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:19:52,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:19:52,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:19:52,177 INFO L87 Difference]: Start difference. First operand 17658 states and 26510 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-19 08:19:54,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:19:57,644 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 [] [2022-11-19 08:20:01,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:20:01,501 INFO L93 Difference]: Finished difference Result 51902 states and 78507 transitions. [2022-11-19 08:20:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:20:01,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 549 [2022-11-19 08:20:01,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:20:01,798 INFO L225 Difference]: With dead ends: 51902 [2022-11-19 08:20:01,798 INFO L226 Difference]: Without dead ends: 34349 [2022-11-19 08:20:01,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:20:01,935 INFO L413 NwaCegarLoop]: 4039 mSDtfsCounter, 3290 mSDsluCounter, 3184 mSDsCounter, 0 mSdLazyCounter, 1221 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3290 SdHoareTripleChecker+Valid, 7223 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1221 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:20:01,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3290 Valid, 7223 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1221 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-11-19 08:20:01,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34349 states. [2022-11-19 08:20:04,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34349 to 34324. [2022-11-19 08:20:04,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34324 states, 21030 states have (on average 1.3440798858773182) internal successors, (28266), 21863 states have internal predecessors, (28266), 11095 states have call successors, (11095), 2229 states have call predecessors, (11095), 2196 states have return successors, (12720), 10637 states have call predecessors, (12720), 11091 states have call successors, (12720) [2022-11-19 08:20:04,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34324 states to 34324 states and 52081 transitions. [2022-11-19 08:20:04,747 INFO L78 Accepts]: Start accepts. Automaton has 34324 states and 52081 transitions. Word has length 549 [2022-11-19 08:20:04,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:20:04,748 INFO L495 AbstractCegarLoop]: Abstraction has 34324 states and 52081 transitions. [2022-11-19 08:20:04,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-19 08:20:04,749 INFO L276 IsEmpty]: Start isEmpty. Operand 34324 states and 52081 transitions. [2022-11-19 08:20:04,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2022-11-19 08:20:04,762 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:20:04,762 INFO L195 NwaCegarLoop]: trace histogram [53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:20:04,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:20:04,763 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)] === [2022-11-19 08:20:04,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:20:04,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1462986953, now seen corresponding path program 1 times [2022-11-19 08:20:04,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:20:04,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310553672] [2022-11-19 08:20:04,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:20:04,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:20:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:20:05,986 INFO L134 CoverageAnalysis]: Checked inductivity of 10712 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10712 trivial. 0 not checked. [2022-11-19 08:20:05,986 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:20:05,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310553672] [2022-11-19 08:20:05,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310553672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:20:05,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:20:05,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:20:05,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950204307] [2022-11-19 08:20:05,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:20:05,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:20:05,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:20:05,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:20:05,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:20:05,990 INFO L87 Difference]: Start difference. First operand 34324 states and 52081 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-19 08:20:08,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:20:11,518 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 [] [2022-11-19 08:20:16,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:20:16,443 INFO L93 Difference]: Finished difference Result 101210 states and 154785 transitions. [2022-11-19 08:20:16,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:20:16,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 550 [2022-11-19 08:20:16,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:20:17,118 INFO L225 Difference]: With dead ends: 101210 [2022-11-19 08:20:17,118 INFO L226 Difference]: Without dead ends: 66991 [2022-11-19 08:20:17,311 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 [2022-11-19 08:20:17,312 INFO L413 NwaCegarLoop]: 4123 mSDtfsCounter, 3289 mSDsluCounter, 3184 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3289 SdHoareTripleChecker+Valid, 7307 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:20:17,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3289 Valid, 7307 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1257 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-11-19 08:20:17,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66991 states. [2022-11-19 08:20:22,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66991 to 66966. [2022-11-19 08:20:22,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66966 states, 41023 states have (on average 1.340589425444263) internal successors, (54995), 42680 states have internal predecessors, (54995), 21552 states have call successors, (21552), 4453 states have call predecessors, (21552), 4388 states have return successors, (26201), 20639 states have call predecessors, (26201), 21548 states have call successors, (26201) [2022-11-19 08:20:23,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66966 states to 66966 states and 102748 transitions. [2022-11-19 08:20:23,400 INFO L78 Accepts]: Start accepts. Automaton has 66966 states and 102748 transitions. Word has length 550 [2022-11-19 08:20:23,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:20:23,401 INFO L495 AbstractCegarLoop]: Abstraction has 66966 states and 102748 transitions. [2022-11-19 08:20:23,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-19 08:20:23,402 INFO L276 IsEmpty]: Start isEmpty. Operand 66966 states and 102748 transitions. [2022-11-19 08:20:23,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-11-19 08:20:23,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:20:23,409 INFO L195 NwaCegarLoop]: trace histogram [53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:20:23,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:20:23,410 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)] === [2022-11-19 08:20:23,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:20:23,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1419520347, now seen corresponding path program 1 times [2022-11-19 08:20:23,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:20:23,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631236023] [2022-11-19 08:20:23,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:20:23,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:20:23,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:20:24,628 INFO L134 CoverageAnalysis]: Checked inductivity of 10712 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10712 trivial. 0 not checked. [2022-11-19 08:20:24,628 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:20:24,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631236023] [2022-11-19 08:20:24,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631236023] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:20:24,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:20:24,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:20:24,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022075973] [2022-11-19 08:20:24,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:20:24,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:20:24,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:20:24,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:20:24,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:20:24,631 INFO L87 Difference]: Start difference. First operand 66966 states and 102748 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-19 08:20:26,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:20:31,423 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 [] [2022-11-19 08:20:38,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:20:38,262 INFO L93 Difference]: Finished difference Result 194268 states and 293916 transitions. [2022-11-19 08:20:38,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:20:38,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 553 [2022-11-19 08:20:38,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:20:39,257 INFO L225 Difference]: With dead ends: 194268 [2022-11-19 08:20:39,257 INFO L226 Difference]: Without dead ends: 127407 [2022-11-19 08:20:39,746 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 [2022-11-19 08:20:39,747 INFO L413 NwaCegarLoop]: 4216 mSDtfsCounter, 3085 mSDsluCounter, 3155 mSDsCounter, 0 mSdLazyCounter, 1366 mSolverCounterSat, 29 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3086 SdHoareTripleChecker+Valid, 7371 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1366 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:20:39,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3086 Valid, 7371 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1366 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-11-19 08:20:39,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127407 states. [2022-11-19 08:20:47,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127407 to 127318. [2022-11-19 08:20:47,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127318 states, 77695 states have (on average 1.3313984168865436) internal successors, (103443), 80984 states have internal predecessors, (103443), 40992 states have call successors, (40992), 8757 states have call predecessors, (40992), 8628 states have return successors, (45897), 39167 states have call predecessors, (45897), 40988 states have call successors, (45897) [2022-11-19 08:20:48,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127318 states to 127318 states and 190332 transitions. [2022-11-19 08:20:48,917 INFO L78 Accepts]: Start accepts. Automaton has 127318 states and 190332 transitions. Word has length 553 [2022-11-19 08:20:48,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:20:48,919 INFO L495 AbstractCegarLoop]: Abstraction has 127318 states and 190332 transitions. [2022-11-19 08:20:48,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-19 08:20:48,920 INFO L276 IsEmpty]: Start isEmpty. Operand 127318 states and 190332 transitions. [2022-11-19 08:20:48,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2022-11-19 08:20:48,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:20:48,932 INFO L195 NwaCegarLoop]: trace histogram [53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:20:48,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:20:48,932 INFO L420 AbstractCegarLoop]: === Iteration 7 === 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)] === [2022-11-19 08:20:48,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:20:48,933 INFO L85 PathProgramCache]: Analyzing trace with hash 96052233, now seen corresponding path program 1 times [2022-11-19 08:20:48,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:20:48,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378057164] [2022-11-19 08:20:48,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:20:48,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:20:49,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:20:49,834 INFO L134 CoverageAnalysis]: Checked inductivity of 10712 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10712 trivial. 0 not checked. [2022-11-19 08:20:49,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:20:49,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378057164] [2022-11-19 08:20:49,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378057164] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:20:49,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:20:49,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:20:49,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116882781] [2022-11-19 08:20:49,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:20:49,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:20:49,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:20:49,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:20:49,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:20:49,838 INFO L87 Difference]: Start difference. First operand 127318 states and 190332 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-19 08:20:51,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:20:55,654 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 []