./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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_cf06ac24-bc8a-4009-a0b6-982cb8f79eb2/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf06ac24-bc8a-4009-a0b6-982cb8f79eb2/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_cf06ac24-bc8a-4009-a0b6-982cb8f79eb2/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf06ac24-bc8a-4009-a0b6-982cb8f79eb2/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf06ac24-bc8a-4009-a0b6-982cb8f79eb2/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_cf06ac24-bc8a-4009-a0b6-982cb8f79eb2/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 52f53de973aa03e2a9eaadeeb26ce30c3104ed671c54a416d14fc4c2bdab8bd9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:34:11,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:34:11,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:34:12,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:34:12,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:34:12,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:34:12,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:34:12,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:34:12,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:34:12,022 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:34:12,023 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:34:12,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:34:12,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:34:12,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:34:12,026 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:34:12,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:34:12,028 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:34:12,029 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:34:12,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:34:12,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:34:12,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:34:12,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:34:12,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:34:12,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:34:12,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:34:12,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:34:12,043 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:34:12,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:34:12,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:34:12,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:34:12,046 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:34:12,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:34:12,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:34:12,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:34:12,049 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:34:12,049 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:34:12,050 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:34:12,050 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:34:12,050 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:34:12,051 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:34:12,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:34:12,053 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf06ac24-bc8a-4009-a0b6-982cb8f79eb2/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:34:12,075 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:34:12,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:34:12,076 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:34:12,076 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:34:12,077 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:34:12,077 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:34:12,077 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:34:12,077 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:34:12,078 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:34:12,078 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:34:12,078 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:34:12,079 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:34:12,079 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:34:12,079 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:34:12,079 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:34:12,080 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:34:12,080 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:34:12,080 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:34:12,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:34:12,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:34:12,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:34:12,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:34:12,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:34:12,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:34:12,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:34:12,082 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:34:12,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:34:12,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:34:12,083 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:34:12,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:34:12,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:34:12,084 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:34:12,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:34:12,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:34:12,084 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:34:12,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:34:12,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:34:12,085 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:34:12,085 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_cf06ac24-bc8a-4009-a0b6-982cb8f79eb2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf06ac24-bc8a-4009-a0b6-982cb8f79eb2/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52f53de973aa03e2a9eaadeeb26ce30c3104ed671c54a416d14fc4c2bdab8bd9 [2022-11-19 07:34:12,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:34:12,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:34:12,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:34:12,421 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:34:12,421 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:34:12,423 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf06ac24-bc8a-4009-a0b6-982cb8f79eb2/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-11-19 07:34:12,510 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf06ac24-bc8a-4009-a0b6-982cb8f79eb2/bin/utaipan-I9t0OCRTmS/data/a320ef36d/254f7ddd88eb48f0a20a3bd7958a1c05/FLAGfee29b304 [2022-11-19 07:34:13,465 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:34:13,466 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf06ac24-bc8a-4009-a0b6-982cb8f79eb2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-11-19 07:34:13,550 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf06ac24-bc8a-4009-a0b6-982cb8f79eb2/bin/utaipan-I9t0OCRTmS/data/a320ef36d/254f7ddd88eb48f0a20a3bd7958a1c05/FLAGfee29b304 [2022-11-19 07:34:13,837 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf06ac24-bc8a-4009-a0b6-982cb8f79eb2/bin/utaipan-I9t0OCRTmS/data/a320ef36d/254f7ddd88eb48f0a20a3bd7958a1c05 [2022-11-19 07:34:13,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:34:13,841 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:34:13,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:34:13,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:34:13,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:34:13,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:13" (1/1) ... [2022-11-19 07:34:13,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b74d6ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:13, skipping insertion in model container [2022-11-19 07:34:13,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:13" (1/1) ... [2022-11-19 07:34:13,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:34:14,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:34:18,461 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_cf06ac24-bc8a-4009-a0b6-982cb8f79eb2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[479863,479876] [2022-11-19 07:34:18,467 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_cf06ac24-bc8a-4009-a0b6-982cb8f79eb2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480032,480045] [2022-11-19 07:34:18,467 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_cf06ac24-bc8a-4009-a0b6-982cb8f79eb2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480199,480212] [2022-11-19 07:34:18,468 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_cf06ac24-bc8a-4009-a0b6-982cb8f79eb2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480367,480380] [2022-11-19 07:34:18,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:34:18,562 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:34:19,221 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_cf06ac24-bc8a-4009-a0b6-982cb8f79eb2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[479863,479876] [2022-11-19 07:34:19,222 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_cf06ac24-bc8a-4009-a0b6-982cb8f79eb2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480032,480045] [2022-11-19 07:34:19,222 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_cf06ac24-bc8a-4009-a0b6-982cb8f79eb2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480199,480212] [2022-11-19 07:34:19,222 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_cf06ac24-bc8a-4009-a0b6-982cb8f79eb2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480367,480380] [2022-11-19 07:34:19,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:34:19,422 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:34:19,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:19 WrapperNode [2022-11-19 07:34:19,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:34:19,424 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:34:19,424 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:34:19,425 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:34:19,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:19" (1/1) ... [2022-11-19 07:34:19,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:19" (1/1) ... [2022-11-19 07:34:19,876 INFO L138 Inliner]: procedures = 544, calls = 4226, calls flagged for inlining = 248, calls inlined = 231, statements flattened = 8999 [2022-11-19 07:34:19,877 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:34:19,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:34:19,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:34:19,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:34:19,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:19" (1/1) ... [2022-11-19 07:34:19,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:19" (1/1) ... [2022-11-19 07:34:20,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:19" (1/1) ... [2022-11-19 07:34:20,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:19" (1/1) ... [2022-11-19 07:34:20,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:19" (1/1) ... [2022-11-19 07:34:20,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:19" (1/1) ... [2022-11-19 07:34:20,404 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:19" (1/1) ... [2022-11-19 07:34:20,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:19" (1/1) ... [2022-11-19 07:34:20,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:34:20,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:34:20,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:34:20,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:34:20,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:19" (1/1) ... [2022-11-19 07:34:20,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:34:20,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf06ac24-bc8a-4009-a0b6-982cb8f79eb2/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:34:20,608 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf06ac24-bc8a-4009-a0b6-982cb8f79eb2/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:34:20,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf06ac24-bc8a-4009-a0b6-982cb8f79eb2/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:34:20,655 INFO L130 BoogieDeclarations]: Found specification of procedure disable_ast [2022-11-19 07:34:20,655 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_ast [2022-11-19 07:34:20,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 07:34:20,655 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 07:34:20,655 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-19 07:34:20,656 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-19 07:34:20,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:34:20,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:34:20,656 INFO L130 BoogieDeclarations]: Found specification of procedure type4_infoblock [2022-11-19 07:34:20,656 INFO L138 BoogieDeclarations]: Found implementation of procedure type4_infoblock [2022-11-19 07:34:20,657 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_put_cache [2022-11-19 07:34:20,657 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_put_cache [2022-11-19 07:34:20,657 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-19 07:34:20,657 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-19 07:34:20,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_de4x5_private [2022-11-19 07:34:20,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_de4x5_private [2022-11-19 07:34:20,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 07:34:20,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 07:34:20,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_de4x5_private [2022-11-19 07:34:20,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_de4x5_private [2022-11-19 07:34:20,658 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_mii [2022-11-19 07:34:20,658 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_mii [2022-11-19 07:34:20,659 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_switch_mac_port [2022-11-19 07:34:20,659 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_switch_mac_port [2022-11-19 07:34:20,659 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 07:34:20,659 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 07:34:20,659 INFO L130 BoogieDeclarations]: Found specification of procedure srom_latch [2022-11-19 07:34:20,660 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_latch [2022-11-19 07:34:20,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2022-11-19 07:34:20,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2022-11-19 07:34:20,660 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 07:34:20,660 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 07:34:20,660 INFO L130 BoogieDeclarations]: Found specification of procedure build_setup_frame [2022-11-19 07:34:20,661 INFO L138 BoogieDeclarations]: Found implementation of procedure build_setup_frame [2022-11-19 07:34:20,661 INFO L130 BoogieDeclarations]: Found specification of procedure type2_infoblock [2022-11-19 07:34:20,661 INFO L138 BoogieDeclarations]: Found implementation of procedure type2_infoblock [2022-11-19 07:34:20,661 INFO L130 BoogieDeclarations]: Found specification of procedure type0_infoblock [2022-11-19 07:34:20,662 INFO L138 BoogieDeclarations]: Found implementation of procedure type0_infoblock [2022-11-19 07:34:20,662 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-19 07:34:20,662 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-19 07:34:20,662 INFO L130 BoogieDeclarations]: Found specification of procedure DevicePresent [2022-11-19 07:34:20,663 INFO L138 BoogieDeclarations]: Found implementation of procedure DevicePresent [2022-11-19 07:34:20,663 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-19 07:34:20,664 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-19 07:34:20,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 07:34:20,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 07:34:20,665 INFO L130 BoogieDeclarations]: Found specification of procedure dc21143_infoleaf [2022-11-19 07:34:20,665 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21143_infoleaf [2022-11-19 07:34:20,665 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2022-11-19 07:34:20,665 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2022-11-19 07:34:20,665 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-19 07:34:20,665 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-19 07:34:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 07:34:20,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 07:34:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2022-11-19 07:34:20,667 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_sw_reset [2022-11-19 07:34:20,667 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_sw_reset [2022-11-19 07:34:20,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:34:20,667 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-11-19 07:34:20,668 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-11-19 07:34:20,668 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-19 07:34:20,668 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-19 07:34:20,668 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-19 07:34:20,668 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-19 07:34:20,669 INFO L130 BoogieDeclarations]: Found specification of procedure is_spd_100 [2022-11-19 07:34:20,669 INFO L138 BoogieDeclarations]: Found implementation of procedure is_spd_100 [2022-11-19 07:34:20,670 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 07:34:20,670 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 07:34:20,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:34:20,670 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-19 07:34:20,670 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-19 07:34:20,670 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_mii [2022-11-19 07:34:20,671 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_mii [2022-11-19 07:34:20,671 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_rx_buffs [2022-11-19 07:34:20,671 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_rx_buffs [2022-11-19 07:34:20,671 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 07:34:20,672 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 07:34:20,672 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-19 07:34:20,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-19 07:34:20,673 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-19 07:34:20,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-19 07:34:20,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:34:20,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 07:34:20,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 07:34:20,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:34:20,674 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 07:34:20,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 07:34:20,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 07:34:20,676 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 07:34:20,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-19 07:34:20,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-19 07:34:20,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 07:34:20,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 07:34:20,676 INFO L130 BoogieDeclarations]: Found specification of procedure ping_media [2022-11-19 07:34:20,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ping_media [2022-11-19 07:34:20,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 07:34:20,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 07:34:20,677 INFO L130 BoogieDeclarations]: Found specification of procedure srom_autoconf [2022-11-19 07:34:20,678 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_autoconf [2022-11-19 07:34:20,678 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 07:34:20,678 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 07:34:20,678 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-19 07:34:20,678 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-19 07:34:20,679 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_tx [2022-11-19 07:34:20,680 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_tx [2022-11-19 07:34:20,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 07:34:20,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 07:34:20,684 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-19 07:34:20,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-19 07:34:20,685 INFO L130 BoogieDeclarations]: Found specification of procedure srom_rd [2022-11-19 07:34:20,685 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_rd [2022-11-19 07:34:20,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:34:20,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-19 07:34:20,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-19 07:34:20,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-19 07:34:20,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-19 07:34:20,694 INFO L130 BoogieDeclarations]: Found specification of procedure SetMulticastFilter [2022-11-19 07:34:20,694 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMulticastFilter [2022-11-19 07:34:20,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:34:20,694 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ioctl [2022-11-19 07:34:20,694 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ioctl [2022-11-19 07:34:20,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 07:34:20,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 07:34:20,695 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 07:34:20,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 07:34:20,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:34:20,695 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:34:20,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:34:20,696 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_srom [2022-11-19 07:34:20,696 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_srom [2022-11-19 07:34:20,696 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-19 07:34:20,696 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-19 07:34:20,696 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:34:20,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:34:20,697 INFO L130 BoogieDeclarations]: Found specification of procedure mii_swap [2022-11-19 07:34:20,697 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_swap [2022-11-19 07:34:20,697 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_reset_phy [2022-11-19 07:34:20,697 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_reset_phy [2022-11-19 07:34:20,697 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_putb_cache [2022-11-19 07:34:20,697 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_putb_cache [2022-11-19 07:34:20,697 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-19 07:34:20,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-19 07:34:20,698 INFO L130 BoogieDeclarations]: Found specification of procedure dc21142_infoleaf [2022-11-19 07:34:20,698 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21142_infoleaf [2022-11-19 07:34:20,698 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 07:34:20,698 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 07:34:20,698 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_stats [2022-11-19 07:34:20,699 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_stats [2022-11-19 07:34:20,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-19 07:34:20,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-19 07:34:20,699 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-19 07:34:20,699 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-19 07:34:20,699 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init_connection [2022-11-19 07:34:20,700 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init_connection [2022-11-19 07:34:20,700 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wr [2022-11-19 07:34:20,700 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wr [2022-11-19 07:34:20,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:34:20,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:34:20,700 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_state [2022-11-19 07:34:20,701 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_state [2022-11-19 07:34:20,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-19 07:34:20,701 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-19 07:34:20,701 INFO L130 BoogieDeclarations]: Found specification of procedure type3_infoblock [2022-11-19 07:34:20,701 INFO L138 BoogieDeclarations]: Found implementation of procedure type3_infoblock [2022-11-19 07:34:20,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:34:20,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:34:20,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:34:20,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:34:20,702 INFO L130 BoogieDeclarations]: Found specification of procedure reset_init_sia [2022-11-19 07:34:20,702 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_init_sia [2022-11-19 07:34:20,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 07:34:20,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 07:34:20,703 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-19 07:34:20,703 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-19 07:34:20,703 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_alloc_rx_buff [2022-11-19 07:34:20,703 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_alloc_rx_buff [2022-11-19 07:34:20,703 INFO L130 BoogieDeclarations]: Found specification of procedure test_for_100Mb [2022-11-19 07:34:20,703 INFO L138 BoogieDeclarations]: Found implementation of procedure test_for_100Mb [2022-11-19 07:34:20,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-19 07:34:20,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-19 07:34:20,704 INFO L130 BoogieDeclarations]: Found specification of procedure type5_infoblock [2022-11-19 07:34:20,704 INFO L138 BoogieDeclarations]: Found implementation of procedure type5_infoblock [2022-11-19 07:34:20,704 INFO L130 BoogieDeclarations]: Found specification of procedure load_packet [2022-11-19 07:34:20,704 INFO L138 BoogieDeclarations]: Found implementation of procedure load_packet [2022-11-19 07:34:20,705 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140m_autoconf [2022-11-19 07:34:20,705 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140m_autoconf [2022-11-19 07:34:20,705 INFO L130 BoogieDeclarations]: Found specification of procedure is_100_up [2022-11-19 07:34:20,705 INFO L138 BoogieDeclarations]: Found implementation of procedure is_100_up [2022-11-19 07:34:20,705 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_open [2022-11-19 07:34:20,705 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_open [2022-11-19 07:34:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:34:20,706 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:34:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ta [2022-11-19 07:34:20,706 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ta [2022-11-19 07:34:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 07:34:20,706 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 07:34:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_autoconf [2022-11-19 07:34:20,707 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_autoconf [2022-11-19 07:34:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-19 07:34:20,707 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-19 07:34:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure test_mii_reg [2022-11-19 07:34:20,707 INFO L138 BoogieDeclarations]: Found implementation of procedure test_mii_reg [2022-11-19 07:34:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_cache_state [2022-11-19 07:34:20,708 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_cache_state [2022-11-19 07:34:20,708 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-19 07:34:20,708 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-19 07:34:20,708 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_pci_remove [2022-11-19 07:34:20,708 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_pci_remove [2022-11-19 07:34:20,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:34:20,709 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_media [2022-11-19 07:34:20,709 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_media [2022-11-19 07:34:20,709 INFO L130 BoogieDeclarations]: Found specification of procedure autoconf_media [2022-11-19 07:34:20,709 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconf_media [2022-11-19 07:34:20,709 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_autoconf [2022-11-19 07:34:20,709 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_autoconf [2022-11-19 07:34:20,709 INFO L130 BoogieDeclarations]: Found specification of procedure mii_rd [2022-11-19 07:34:20,710 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_rd [2022-11-19 07:34:20,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:34:20,710 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ast [2022-11-19 07:34:20,710 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ast [2022-11-19 07:34:20,710 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-11-19 07:34:20,710 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-11-19 07:34:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2022-11-19 07:34:20,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2022-11-19 07:34:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:34:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-19 07:34:20,711 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-19 07:34:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure is_10_up [2022-11-19 07:34:20,712 INFO L138 BoogieDeclarations]: Found implementation of procedure is_10_up [2022-11-19 07:34:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-19 07:34:20,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-19 07:34:20,713 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-19 07:34:20,717 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-19 07:34:20,717 INFO L130 BoogieDeclarations]: Found specification of procedure is_anc_capable [2022-11-19 07:34:20,717 INFO L138 BoogieDeclarations]: Found implementation of procedure is_anc_capable [2022-11-19 07:34:20,717 INFO L130 BoogieDeclarations]: Found specification of procedure type1_infoblock [2022-11-19 07:34:20,717 INFO L138 BoogieDeclarations]: Found implementation of procedure type1_infoblock [2022-11-19 07:34:20,718 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 07:34:20,718 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 07:34:20,718 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-19 07:34:20,718 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-19 07:34:20,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-19 07:34:20,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-19 07:34:20,719 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140_infoleaf [2022-11-19 07:34:20,719 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140_infoleaf [2022-11-19 07:34:20,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 07:34:20,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 07:34:20,720 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-19 07:34:20,720 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-19 07:34:20,720 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_queue_pkt [2022-11-19 07:34:20,720 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_queue_pkt [2022-11-19 07:34:20,720 INFO L130 BoogieDeclarations]: Found specification of procedure test_media [2022-11-19 07:34:20,721 INFO L138 BoogieDeclarations]: Found implementation of procedure test_media [2022-11-19 07:34:20,721 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buffs [2022-11-19 07:34:20,721 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buffs [2022-11-19 07:34:20,721 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2022-11-19 07:34:20,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2022-11-19 07:34:20,721 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-19 07:34:20,722 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-19 07:34:20,722 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-19 07:34:20,722 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-19 07:34:20,722 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 07:34:20,722 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 07:34:20,722 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init [2022-11-19 07:34:20,722 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init [2022-11-19 07:34:20,723 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-19 07:34:20,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-19 07:34:20,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_73 [2022-11-19 07:34:20,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_73 [2022-11-19 07:34:20,723 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_infoleaf [2022-11-19 07:34:20,723 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_infoleaf [2022-11-19 07:34:20,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:34:20,724 INFO L130 BoogieDeclarations]: Found specification of procedure srom_exec [2022-11-19 07:34:20,724 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_exec [2022-11-19 07:34:20,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:34:20,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:34:20,724 INFO L130 BoogieDeclarations]: Found specification of procedure gep_wr [2022-11-19 07:34:20,725 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_wr [2022-11-19 07:34:20,725 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-19 07:34:20,725 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-19 07:34:20,725 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_srom [2022-11-19 07:34:20,725 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_srom [2022-11-19 07:34:20,725 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-19 07:34:20,725 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-19 07:34:20,726 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_cache [2022-11-19 07:34:20,726 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_cache [2022-11-19 07:34:20,726 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_suspect_state [2022-11-19 07:34:20,726 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_suspect_state [2022-11-19 07:34:20,726 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_mii [2022-11-19 07:34:20,726 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_mii [2022-11-19 07:34:20,727 INFO L130 BoogieDeclarations]: Found specification of procedure compact_infoblock [2022-11-19 07:34:20,727 INFO L138 BoogieDeclarations]: Found implementation of procedure compact_infoblock [2022-11-19 07:34:20,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 07:34:20,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 07:34:20,727 INFO L130 BoogieDeclarations]: Found specification of procedure gep_rd [2022-11-19 07:34:20,727 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_rd [2022-11-19 07:34:20,727 INFO L130 BoogieDeclarations]: Found specification of procedure mii_address [2022-11-19 07:34:20,728 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_address [2022-11-19 07:34:20,728 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buff [2022-11-19 07:34:20,728 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buff [2022-11-19 07:34:20,728 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_setup_intr [2022-11-19 07:34:20,728 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_setup_intr [2022-11-19 07:34:20,728 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_save_skbs [2022-11-19 07:34:20,729 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_save_skbs [2022-11-19 07:34:20,729 INFO L130 BoogieDeclarations]: Found specification of procedure dc2114x_autoconf [2022-11-19 07:34:20,729 INFO L138 BoogieDeclarations]: Found implementation of procedure dc2114x_autoconf [2022-11-19 07:34:20,729 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-19 07:34:20,729 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-19 07:34:20,729 INFO L130 BoogieDeclarations]: Found specification of procedure srom_map_media [2022-11-19 07:34:20,729 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_map_media [2022-11-19 07:34:20,730 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_strncmp [2022-11-19 07:34:20,730 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_strncmp [2022-11-19 07:34:20,730 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-19 07:34:20,730 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-19 07:34:20,730 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_close [2022-11-19 07:34:20,730 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_close [2022-11-19 07:34:20,731 INFO L130 BoogieDeclarations]: Found specification of procedure yawn [2022-11-19 07:34:20,731 INFO L138 BoogieDeclarations]: Found implementation of procedure yawn [2022-11-19 07:34:20,731 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wdata [2022-11-19 07:34:20,731 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wdata [2022-11-19 07:34:20,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:34:20,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 07:34:20,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 07:34:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-19 07:34:22,063 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:34:22,067 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:34:22,691 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:34:42,904 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 07:34:43,330 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:34:48,812 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:34:48,812 INFO L300 CfgBuilder]: Removed 31 assume(true) statements. [2022-11-19 07:34:48,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:48 BoogieIcfgContainer [2022-11-19 07:34:48,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:34:48,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:34:48,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:34:48,831 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:34:48,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:34:13" (1/3) ... [2022-11-19 07:34:48,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a2f5f47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:48, skipping insertion in model container [2022-11-19 07:34:48,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:19" (2/3) ... [2022-11-19 07:34:48,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a2f5f47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:48, skipping insertion in model container [2022-11-19 07:34:48,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:48" (3/3) ... [2022-11-19 07:34:48,845 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-11-19 07:34:48,869 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:34:48,869 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-19 07:34:49,002 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:34:49,009 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;@1a1139ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:34:49,009 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-19 07:34:49,022 INFO L276 IsEmpty]: Start isEmpty. Operand has 3050 states, 1915 states have (on average 1.348302872062663) internal successors, (2582), 1977 states have internal predecessors, (2582), 996 states have call successors, (996), 153 states have call predecessors, (996), 152 states have return successors, (989), 975 states have call predecessors, (989), 989 states have call successors, (989) [2022-11-19 07:34:49,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-19 07:34:49,040 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:34:49,040 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:34:49,041 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:34:49,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:34:49,046 INFO L85 PathProgramCache]: Analyzing trace with hash 866437406, now seen corresponding path program 1 times [2022-11-19 07:34:49,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:34:49,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518133929] [2022-11-19 07:34:49,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:34:49,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:34:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:34:50,328 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-19 07:34:50,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:34:50,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518133929] [2022-11-19 07:34:50,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518133929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:34:50,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:34:50,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:34:50,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217953416] [2022-11-19 07:34:50,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:34:50,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:34:50,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:34:50,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:34:50,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:34:50,380 INFO L87 Difference]: Start difference. First operand has 3050 states, 1915 states have (on average 1.348302872062663) internal successors, (2582), 1977 states have internal predecessors, (2582), 996 states have call successors, (996), 153 states have call predecessors, (996), 152 states have return successors, (989), 975 states have call predecessors, (989), 989 states have call successors, (989) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-19 07:34:51,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:34:53,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:34:59,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:34:59,479 INFO L93 Difference]: Finished difference Result 8932 states and 13716 transitions. [2022-11-19 07:34:59,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:34:59,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 167 [2022-11-19 07:34:59,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:34:59,553 INFO L225 Difference]: With dead ends: 8932 [2022-11-19 07:34:59,553 INFO L226 Difference]: Without dead ends: 5899 [2022-11-19 07:34:59,594 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 07:34:59,597 INFO L413 NwaCegarLoop]: 4831 mSDtfsCounter, 4360 mSDsluCounter, 3863 mSDsCounter, 0 mSdLazyCounter, 1156 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4360 SdHoareTripleChecker+Valid, 8694 SdHoareTripleChecker+Invalid, 1159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:34:59,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4360 Valid, 8694 Invalid, 1159 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1156 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2022-11-19 07:34:59,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5899 states. [2022-11-19 07:35:00,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5899 to 5895. [2022-11-19 07:35:00,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5895 states, 3686 states have (on average 1.3464460119370592) internal successors, (4963), 3778 states have internal predecessors, (4963), 1905 states have call successors, (1905), 302 states have call predecessors, (1905), 301 states have return successors, (1902), 1874 states have call predecessors, (1902), 1902 states have call successors, (1902) [2022-11-19 07:35:00,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5895 states to 5895 states and 8770 transitions. [2022-11-19 07:35:00,112 INFO L78 Accepts]: Start accepts. Automaton has 5895 states and 8770 transitions. Word has length 167 [2022-11-19 07:35:00,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:35:00,117 INFO L495 AbstractCegarLoop]: Abstraction has 5895 states and 8770 transitions. [2022-11-19 07:35:00,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-19 07:35:00,117 INFO L276 IsEmpty]: Start isEmpty. Operand 5895 states and 8770 transitions. [2022-11-19 07:35:00,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-19 07:35:00,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:35:00,135 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:35:00,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:35:00,136 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:35:00,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:35:00,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1710818521, now seen corresponding path program 1 times [2022-11-19 07:35:00,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:35:00,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878661587] [2022-11-19 07:35:00,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:35:00,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:35:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:35:00,648 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-19 07:35:00,649 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:35:00,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878661587] [2022-11-19 07:35:00,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878661587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:35:00,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:35:00,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:35:00,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778914331] [2022-11-19 07:35:00,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:35:00,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:35:00,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:35:00,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:35:00,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:35:00,654 INFO L87 Difference]: Start difference. First operand 5895 states and 8770 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-19 07:35:02,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:35:08,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:35:08,239 INFO L93 Difference]: Finished difference Result 17335 states and 26106 transitions. [2022-11-19 07:35:08,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:35:08,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 173 [2022-11-19 07:35:08,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:35:08,337 INFO L225 Difference]: With dead ends: 17335 [2022-11-19 07:35:08,337 INFO L226 Difference]: Without dead ends: 11471 [2022-11-19 07:35:08,384 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 07:35:08,385 INFO L413 NwaCegarLoop]: 4894 mSDtfsCounter, 4287 mSDsluCounter, 3914 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4287 SdHoareTripleChecker+Valid, 8808 SdHoareTripleChecker+Invalid, 1156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:35:08,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4287 Valid, 8808 Invalid, 1156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1149 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-11-19 07:35:08,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11471 states. [2022-11-19 07:35:09,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11471 to 11441. [2022-11-19 07:35:09,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11441 states, 7159 states have (on average 1.3476742561810309) internal successors, (9648), 7347 states have internal predecessors, (9648), 3684 states have call successors, (3684), 600 states have call predecessors, (3684), 595 states have return successors, (4005), 3613 states have call predecessors, (4005), 3681 states have call successors, (4005) [2022-11-19 07:35:09,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11441 states to 11441 states and 17337 transitions. [2022-11-19 07:35:09,160 INFO L78 Accepts]: Start accepts. Automaton has 11441 states and 17337 transitions. Word has length 173 [2022-11-19 07:35:09,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:35:09,162 INFO L495 AbstractCegarLoop]: Abstraction has 11441 states and 17337 transitions. [2022-11-19 07:35:09,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-19 07:35:09,164 INFO L276 IsEmpty]: Start isEmpty. Operand 11441 states and 17337 transitions. [2022-11-19 07:35:09,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-19 07:35:09,169 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:35:09,170 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:35:09,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:35:09,170 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 07:35:09,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:35:09,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1171774906, now seen corresponding path program 1 times [2022-11-19 07:35:09,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:35:09,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92311222] [2022-11-19 07:35:09,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:35:09,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:35:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:35:09,533 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-19 07:35:09,533 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:35:09,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92311222] [2022-11-19 07:35:09,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92311222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:35:09,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:35:09,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:35:09,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544248021] [2022-11-19 07:35:09,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:35:09,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:35:09,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:35:09,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:35:09,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:35:09,538 INFO L87 Difference]: Start difference. First operand 11441 states and 17337 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-19 07:35:11,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:35:17,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:35:17,763 INFO L93 Difference]: Finished difference Result 34153 states and 51755 transitions. [2022-11-19 07:35:17,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:35:17,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 181 [2022-11-19 07:35:17,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:35:17,931 INFO L225 Difference]: With dead ends: 34153 [2022-11-19 07:35:17,932 INFO L226 Difference]: Without dead ends: 22743 [2022-11-19 07:35:18,015 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 07:35:18,018 INFO L413 NwaCegarLoop]: 4823 mSDtfsCounter, 4341 mSDsluCounter, 3850 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4341 SdHoareTripleChecker+Valid, 8673 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:35:18,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4341 Valid, 8673 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1172 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-11-19 07:35:18,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22743 states. [2022-11-19 07:35:19,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22743 to 22717. [2022-11-19 07:35:19,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22717 states, 14227 states have (on average 1.3464539256343573) internal successors, (19156), 14601 states have internal predecessors, (19156), 7298 states have call successors, (7298), 1198 states have call predecessors, (7298), 1189 states have return successors, (7955), 7157 states have call predecessors, (7955), 7295 states have call successors, (7955) [2022-11-19 07:35:19,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22717 states to 22717 states and 34409 transitions. [2022-11-19 07:35:19,865 INFO L78 Accepts]: Start accepts. Automaton has 22717 states and 34409 transitions. Word has length 181 [2022-11-19 07:35:19,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:35:19,866 INFO L495 AbstractCegarLoop]: Abstraction has 22717 states and 34409 transitions. [2022-11-19 07:35:19,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-19 07:35:19,867 INFO L276 IsEmpty]: Start isEmpty. Operand 22717 states and 34409 transitions. [2022-11-19 07:35:19,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-19 07:35:19,871 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:35:19,872 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:35:19,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:35:19,872 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 07:35:19,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:35:19,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1120797211, now seen corresponding path program 1 times [2022-11-19 07:35:19,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:35:19,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762456540] [2022-11-19 07:35:19,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:35:19,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:35:20,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:35:20,196 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-19 07:35:20,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:35:20,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762456540] [2022-11-19 07:35:20,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762456540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:35:20,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:35:20,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:35:20,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096746142] [2022-11-19 07:35:20,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:35:20,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:35:20,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:35:20,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:35:20,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:35:20,199 INFO L87 Difference]: Start difference. First operand 22717 states and 34409 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-19 07:35:22,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:35:28,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:35:28,494 INFO L93 Difference]: Finished difference Result 67873 states and 102799 transitions. [2022-11-19 07:35:28,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:35:28,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 184 [2022-11-19 07:35:28,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:35:28,791 INFO L225 Difference]: With dead ends: 67873 [2022-11-19 07:35:28,791 INFO L226 Difference]: Without dead ends: 45187 [2022-11-19 07:35:29,103 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 07:35:29,108 INFO L413 NwaCegarLoop]: 4822 mSDtfsCounter, 4338 mSDsluCounter, 3850 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4338 SdHoareTripleChecker+Valid, 8672 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:35:29,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4338 Valid, 8672 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1172 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-11-19 07:35:29,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45187 states. [2022-11-19 07:35:31,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45187 to 45149. [2022-11-19 07:35:31,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45149 states, 28283 states have (on average 1.3451189760633595) internal successors, (38044), 29029 states have internal predecessors, (38044), 14486 states have call successors, (14486), 2394 states have call predecessors, (14486), 2377 states have return successors, (15819), 14205 states have call predecessors, (15819), 14483 states have call successors, (15819) [2022-11-19 07:35:32,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45149 states to 45149 states and 68349 transitions. [2022-11-19 07:35:32,093 INFO L78 Accepts]: Start accepts. Automaton has 45149 states and 68349 transitions. Word has length 184 [2022-11-19 07:35:32,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:35:32,094 INFO L495 AbstractCegarLoop]: Abstraction has 45149 states and 68349 transitions. [2022-11-19 07:35:32,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-19 07:35:32,094 INFO L276 IsEmpty]: Start isEmpty. Operand 45149 states and 68349 transitions. [2022-11-19 07:35:32,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-19 07:35:32,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:35:32,099 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:35:32,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:35:32,100 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 07:35:32,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:35:32,100 INFO L85 PathProgramCache]: Analyzing trace with hash -631862594, now seen corresponding path program 1 times [2022-11-19 07:35:32,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:35:32,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662891299] [2022-11-19 07:35:32,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:35:32,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:35:32,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:35:32,435 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-19 07:35:32,435 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:35:32,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662891299] [2022-11-19 07:35:32,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662891299] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:35:32,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:35:32,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:35:32,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630073599] [2022-11-19 07:35:32,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:35:32,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:35:32,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:35:32,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:35:32,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:35:32,437 INFO L87 Difference]: Start difference. First operand 45149 states and 68349 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-19 07:35:34,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:35:43,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:35:43,665 INFO L93 Difference]: Finished difference Result 134953 states and 204283 transitions. [2022-11-19 07:35:43,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:35:43,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 182 [2022-11-19 07:35:43,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:35:44,457 INFO L225 Difference]: With dead ends: 134953 [2022-11-19 07:35:44,458 INFO L226 Difference]: Without dead ends: 89835 [2022-11-19 07:35:44,703 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 07:35:44,704 INFO L413 NwaCegarLoop]: 4822 mSDtfsCounter, 4340 mSDsluCounter, 3850 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4340 SdHoareTripleChecker+Valid, 8672 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:35:44,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4340 Valid, 8672 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1172 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-11-19 07:35:44,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89835 states. [2022-11-19 07:35:49,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89835 to 89809. [2022-11-19 07:35:49,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89809 states, 56271 states have (on average 1.3434984272538253) internal successors, (75600), 57761 states have internal predecessors, (75600), 28782 states have call successors, (28782), 4786 states have call predecessors, (28782), 4753 states have return successors, (31483), 28221 states have call predecessors, (31483), 28779 states have call successors, (31483) [2022-11-19 07:35:50,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89809 states to 89809 states and 135865 transitions. [2022-11-19 07:35:50,582 INFO L78 Accepts]: Start accepts. Automaton has 89809 states and 135865 transitions. Word has length 182 [2022-11-19 07:35:50,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:35:50,582 INFO L495 AbstractCegarLoop]: Abstraction has 89809 states and 135865 transitions. [2022-11-19 07:35:50,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-19 07:35:50,583 INFO L276 IsEmpty]: Start isEmpty. Operand 89809 states and 135865 transitions. [2022-11-19 07:35:50,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-19 07:35:50,588 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:35:50,588 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:35:50,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:35:50,589 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 07:35:50,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:35:50,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1027603207, now seen corresponding path program 1 times [2022-11-19 07:35:50,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:35:50,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167004379] [2022-11-19 07:35:50,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:35:50,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:35:50,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:35:50,940 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-19 07:35:50,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:35:50,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167004379] [2022-11-19 07:35:50,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167004379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:35:50,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:35:50,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:35:50,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569764450] [2022-11-19 07:35:50,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:35:50,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:35:50,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:35:50,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:35:50,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:35:50,943 INFO L87 Difference]: Start difference. First operand 89809 states and 135865 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-19 07:35:52,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []