./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f20589-4fe5-4abd-b186-1864a65532d1/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f20589-4fe5-4abd-b186-1864a65532d1/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f20589-4fe5-4abd-b186-1864a65532d1/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f20589-4fe5-4abd-b186-1864a65532d1/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f20589-4fe5-4abd-b186-1864a65532d1/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f20589-4fe5-4abd-b186-1864a65532d1/bin/utaipan-7li7fVZpFI --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 fdbc5180119fad988a6a3a24d2f5ed804cbc2cd6d0e7bbb402b6d4dd37802e45 --- 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-5e519f3 [2022-11-03 03:29:49,167 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:29:49,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:29:49,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:29:49,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:29:49,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:29:49,202 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:29:49,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:29:49,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:29:49,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:29:49,209 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:29:49,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:29:49,211 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:29:49,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:29:49,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:29:49,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:29:49,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:29:49,217 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:29:49,219 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:29:49,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:29:49,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:29:49,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:29:49,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:29:49,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:29:49,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:29:49,232 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:29:49,233 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:29:49,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:29:49,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:29:49,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:29:49,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:29:49,237 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:29:49,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:29:49,239 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:29:49,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:29:49,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:29:49,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:29:49,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:29:49,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:29:49,244 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:29:49,245 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:29:49,246 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f20589-4fe5-4abd-b186-1864a65532d1/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:29:49,285 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:29:49,286 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:29:49,286 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:29:49,286 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:29:49,287 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:29:49,287 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:29:49,287 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:29:49,287 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:29:49,288 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:29:49,288 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:29:49,288 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:29:49,288 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:29:49,288 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:29:49,288 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:29:49,289 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:29:49,289 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:29:49,289 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:29:49,289 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:29:49,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:29:49,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:29:49,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:29:49,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:29:49,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:29:49,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:29:49,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:29:49,291 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:29:49,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:29:49,292 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:29:49,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:29:49,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:29:49,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:29:49,293 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:29:49,293 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:29:49,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:29:49,293 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:29:49,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:29:49,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:29:49,294 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:29:49,294 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_68f20589-4fe5-4abd-b186-1864a65532d1/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f20589-4fe5-4abd-b186-1864a65532d1/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdbc5180119fad988a6a3a24d2f5ed804cbc2cd6d0e7bbb402b6d4dd37802e45 [2022-11-03 03:29:49,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:29:49,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:29:49,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:29:49,706 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:29:49,707 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:29:49,709 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f20589-4fe5-4abd-b186-1864a65532d1/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2022-11-03 03:29:49,797 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f20589-4fe5-4abd-b186-1864a65532d1/bin/utaipan-7li7fVZpFI/data/8f1feaa28/67c541ee0f784eaaa10750f1c1dcbbda/FLAG7e68ef2d2 [2022-11-03 03:29:51,031 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:29:51,032 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f20589-4fe5-4abd-b186-1864a65532d1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2022-11-03 03:29:51,126 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f20589-4fe5-4abd-b186-1864a65532d1/bin/utaipan-7li7fVZpFI/data/8f1feaa28/67c541ee0f784eaaa10750f1c1dcbbda/FLAG7e68ef2d2 [2022-11-03 03:29:51,301 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f20589-4fe5-4abd-b186-1864a65532d1/bin/utaipan-7li7fVZpFI/data/8f1feaa28/67c541ee0f784eaaa10750f1c1dcbbda [2022-11-03 03:29:51,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:29:51,308 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:29:51,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:29:51,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:29:51,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:29:51,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:29:51" (1/1) ... [2022-11-03 03:29:51,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@313140f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:51, skipping insertion in model container [2022-11-03 03:29:51,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:29:51" (1/1) ... [2022-11-03 03:29:51,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:29:51,534 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:29:55,275 WARN L230 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_68f20589-4fe5-4abd-b186-1864a65532d1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394320,394333] [2022-11-03 03:29:55,278 WARN L230 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_68f20589-4fe5-4abd-b186-1864a65532d1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394489,394502] [2022-11-03 03:29:55,279 WARN L230 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_68f20589-4fe5-4abd-b186-1864a65532d1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394656,394669] [2022-11-03 03:29:55,280 WARN L230 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_68f20589-4fe5-4abd-b186-1864a65532d1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394824,394837] [2022-11-03 03:29:55,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:29:55,338 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:29:56,454 WARN L230 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_68f20589-4fe5-4abd-b186-1864a65532d1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394320,394333] [2022-11-03 03:29:56,455 WARN L230 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_68f20589-4fe5-4abd-b186-1864a65532d1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394489,394502] [2022-11-03 03:29:56,456 WARN L230 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_68f20589-4fe5-4abd-b186-1864a65532d1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394656,394669] [2022-11-03 03:29:56,456 WARN L230 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_68f20589-4fe5-4abd-b186-1864a65532d1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394824,394837] [2022-11-03 03:29:56,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:29:56,727 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:29:56,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:56 WrapperNode [2022-11-03 03:29:56,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:29:56,730 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:29:56,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:29:56,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:29:56,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:56" (1/1) ... [2022-11-03 03:29:56,845 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:56" (1/1) ... [2022-11-03 03:29:57,042 INFO L138 Inliner]: procedures = 495, calls = 2611, calls flagged for inlining = 242, calls inlined = 227, statements flattened = 5038 [2022-11-03 03:29:57,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:29:57,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:29:57,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:29:57,045 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:29:57,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:56" (1/1) ... [2022-11-03 03:29:57,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:56" (1/1) ... [2022-11-03 03:29:57,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:56" (1/1) ... [2022-11-03 03:29:57,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:56" (1/1) ... [2022-11-03 03:29:57,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:56" (1/1) ... [2022-11-03 03:29:57,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:56" (1/1) ... [2022-11-03 03:29:57,370 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:56" (1/1) ... [2022-11-03 03:29:57,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:56" (1/1) ... [2022-11-03 03:29:57,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:29:57,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:29:57,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:29:57,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:29:57,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:56" (1/1) ... [2022-11-03 03:29:57,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:29:57,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f20589-4fe5-4abd-b186-1864a65532d1/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:29:57,461 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f20589-4fe5-4abd-b186-1864a65532d1/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:29:57,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f20589-4fe5-4abd-b186-1864a65532d1/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:29:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2022-11-03 03:29:57,527 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2022-11-03 03:29:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-03 03:29:57,527 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-03 03:29:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_crc_length [2022-11-03 03:29:57,528 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_crc_length [2022-11-03 03:29:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 03:29:57,528 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 03:29:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dec_reset [2022-11-03 03:29:57,529 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dec_reset [2022-11-03 03:29:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_get_link_status [2022-11-03 03:29:57,529 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_get_link_status [2022-11-03 03:29:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 03:29:57,529 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 03:29:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 03:29:57,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 03:29:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_default [2022-11-03 03:29:57,530 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_default [2022-11-03 03:29:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkinput [2022-11-03 03:29:57,530 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkinput [2022-11-03 03:29:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 03:29:57,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 03:29:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_status [2022-11-03 03:29:57,531 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_status [2022-11-03 03:29:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_100ft [2022-11-03 03:29:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_100ft [2022-11-03 03:29:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_64 [2022-11-03 03:29:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_64 [2022-11-03 03:29:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set_1 [2022-11-03 03:29:57,533 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set_1 [2022-11-03 03:29:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-03 03:29:57,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-03 03:29:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_close [2022-11-03 03:29:57,534 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_close [2022-11-03 03:29:57,534 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_watchdog [2022-11-03 03:29:57,534 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_watchdog [2022-11-03 03:29:57,534 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2022-11-03 03:29:57,534 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2022-11-03 03:29:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_sc [2022-11-03 03:29:57,535 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_sc [2022-11-03 03:29:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_netif [2022-11-03 03:29:57,536 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_netif [2022-11-03 03:29:57,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 03:29:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 03:29:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 03:29:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 03:29:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_trace [2022-11-03 03:29:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_trace [2022-11-03 03:29:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_get_link_status [2022-11-03 03:29:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_get_link_status [2022-11-03 03:29:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:29:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-03 03:29:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-03 03:29:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 03:29:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 03:29:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 03:29:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-03 03:29:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-03 03:29:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_default [2022-11-03 03:29:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_default [2022-11-03 03:29:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_clock [2022-11-03 03:29:57,543 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_clock [2022-11-03 03:29:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 03:29:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 03:29:57,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 03:29:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_off [2022-11-03 03:29:57,544 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_off [2022-11-03 03:29:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:29:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2022-11-03 03:29:57,545 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2022-11-03 03:29:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 03:29:57,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 03:29:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_default [2022-11-03 03:29:57,546 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_default [2022-11-03 03:29:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 03:29:57,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 03:29:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 03:29:57,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 03:29:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_softreset [2022-11-03 03:29:57,548 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_softreset [2022-11-03 03:29:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110_bit [2022-11-03 03:29:57,548 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110_bit [2022-11-03 03:29:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 03:29:57,550 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 03:29:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-03 03:29:57,551 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-03 03:29:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_crc_length [2022-11-03 03:29:57,551 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_crc_length [2022-11-03 03:29:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_writereg [2022-11-03 03:29:57,552 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_writereg [2022-11-03 03:29:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-03 03:29:57,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-03 03:29:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-11-03 03:29:57,552 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-11-03 03:29:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2022-11-03 03:29:57,553 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2022-11-03 03:29:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:29:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 03:29:57,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 03:29:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-03 03:29:57,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-03 03:29:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:29:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 03:29:57,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 03:29:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 03:29:57,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 03:29:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2022-11-03 03:29:57,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2022-11-03 03:29:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:29:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_readreg [2022-11-03 03:29:57,563 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_readreg [2022-11-03 03:29:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 03:29:57,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 03:29:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-03 03:29:57,569 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-03 03:29:57,569 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:29:57,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:29:57,570 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_init [2022-11-03 03:29:57,570 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_init [2022-11-03 03:29:57,570 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-03 03:29:57,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-03 03:29:57,570 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_open [2022-11-03 03:29:57,571 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_open [2022-11-03 03:29:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-03 03:29:57,571 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-03 03:29:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 03:29:57,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 03:29:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_watchdog [2022-11-03 03:29:57,572 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_watchdog [2022-11-03 03:29:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_status [2022-11-03 03:29:57,572 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_status [2022-11-03 03:29:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_set_protocol [2022-11-03 03:29:57,572 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_set_protocol [2022-11-03 03:29:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_clock [2022-11-03 03:29:57,573 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_clock [2022-11-03 03:29:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-03 03:29:57,573 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-03 03:29:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:29:57,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:29:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_open [2022-11-03 03:29:57,574 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_open [2022-11-03 03:29:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 03:29:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 03:29:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 03:29:57,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 03:29:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2022-11-03 03:29:57,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2022-11-03 03:29:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 03:29:57,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 03:29:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 03:29:57,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 03:29:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_get_link_status [2022-11-03 03:29:57,575 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_get_link_status [2022-11-03 03:29:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_circuit_type [2022-11-03 03:29:57,576 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_circuit_type [2022-11-03 03:29:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_status [2022-11-03 03:29:57,576 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_status [2022-11-03 03:29:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 03:29:57,576 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 03:29:57,577 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_get_link_status [2022-11-03 03:29:57,577 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_get_link_status [2022-11-03 03:29:57,577 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_init [2022-11-03 03:29:57,577 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_init [2022-11-03 03:29:57,577 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 03:29:57,577 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 03:29:57,578 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_scram [2022-11-03 03:29:57,578 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_scram [2022-11-03 03:29:57,578 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_init [2022-11-03 03:29:57,578 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_init [2022-11-03 03:29:57,578 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkoutput [2022-11-03 03:29:57,578 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkoutput [2022-11-03 03:29:57,578 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 03:29:57,579 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 03:29:57,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:29:57,579 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2022-11-03 03:29:57,579 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2022-11-03 03:29:57,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2022-11-03 03:29:57,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2022-11-03 03:29:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:29:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-03 03:29:57,582 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-03 03:29:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110 [2022-11-03 03:29:57,582 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110 [2022-11-03 03:29:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:29:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-03 03:29:57,582 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-03 03:29:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_speed [2022-11-03 03:29:57,583 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_speed [2022-11-03 03:29:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_crc_length [2022-11-03 03:29:57,583 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_crc_length [2022-11-03 03:29:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 03:29:57,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 03:29:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_type [2022-11-03 03:29:57,584 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_type [2022-11-03 03:29:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_remove_one [2022-11-03 03:29:57,584 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_remove_one [2022-11-03 03:29:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 03:29:57,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 03:29:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-03 03:29:57,585 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-03 03:29:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_write [2022-11-03 03:29:57,585 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_write [2022-11-03 03:29:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_close [2022-11-03 03:29:57,585 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_close [2022-11-03 03:29:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 03:29:57,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 03:29:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 03:29:57,586 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 03:29:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 03:29:57,586 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 03:29:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_link_status [2022-11-03 03:29:57,587 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_link_status [2022-11-03 03:29:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_watchdog [2022-11-03 03:29:57,587 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_watchdog [2022-11-03 03:29:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 03:29:57,587 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 03:29:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_watchdog [2022-11-03 03:29:57,587 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_watchdog [2022-11-03 03:29:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:29:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-03 03:29:57,588 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-03 03:29:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 03:29:57,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 03:29:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_link_status [2022-11-03 03:29:57,589 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_link_status [2022-11-03 03:29:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_init [2022-11-03 03:29:57,589 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_init [2022-11-03 03:29:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_attach [2022-11-03 03:29:57,589 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_attach [2022-11-03 03:29:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_default [2022-11-03 03:29:57,589 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_default [2022-11-03 03:29:57,591 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-03 03:29:57,595 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-03 03:29:57,595 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_crc_length [2022-11-03 03:29:57,595 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_crc_length [2022-11-03 03:29:57,595 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_clock [2022-11-03 03:29:57,595 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_clock [2022-11-03 03:29:57,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 03:29:57,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 03:29:57,596 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set2_1 [2022-11-03 03:29:57,596 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set2_1 [2022-11-03 03:29:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_on [2022-11-03 03:29:57,598 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_on [2022-11-03 03:29:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-03 03:29:57,598 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-03 03:29:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:29:57,599 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-03 03:29:57,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-03 03:29:57,599 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-11-03 03:29:57,599 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-11-03 03:29:57,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 03:29:57,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 03:29:57,599 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2022-11-03 03:29:57,600 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2022-11-03 03:29:58,587 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:29:58,592 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:29:58,951 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 03:30:01,360 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint switch_break: call #t~mem1247#1.base, #t~mem1247#1.offset := read~$Pointer$(~sc#1.base, 141 + ~sc#1.offset, 8); [2022-11-03 03:30:01,360 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L12881: SUMMARY for call lmc_trace(#t~mem1247#1.base, #t~mem1247#1.offset, 129, 0); srcloc: null [2022-11-03 03:30:01,360 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L12881-1: havoc #t~mem1247#1.base, #t~mem1247#1.offset; [2022-11-03 03:30:04,871 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 03:30:05,116 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:30:06,719 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:30:06,719 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 03:30:06,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:30:06 BoogieIcfgContainer [2022-11-03 03:30:06,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:30:06,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:30:06,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:30:06,735 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:30:06,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:29:51" (1/3) ... [2022-11-03 03:30:06,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30fcbb10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:30:06, skipping insertion in model container [2022-11-03 03:30:06,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:29:56" (2/3) ... [2022-11-03 03:30:06,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30fcbb10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:30:06, skipping insertion in model container [2022-11-03 03:30:06,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:30:06" (3/3) ... [2022-11-03 03:30:06,738 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2022-11-03 03:30:06,759 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:30:06,760 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-03 03:30:06,874 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:30:06,882 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;@6bd5c4b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:30:06,882 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-03 03:30:06,894 INFO L276 IsEmpty]: Start isEmpty. Operand has 2009 states, 1116 states have (on average 1.314516129032258) internal successors, (1467), 1186 states have internal predecessors, (1467), 772 states have call successors, (772), 119 states have call predecessors, (772), 118 states have return successors, (765), 722 states have call predecessors, (765), 765 states have call successors, (765) [2022-11-03 03:30:06,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-03 03:30:06,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:06,934 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:30:06,934 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)] === [2022-11-03 03:30:06,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:06,942 INFO L85 PathProgramCache]: Analyzing trace with hash 439143183, now seen corresponding path program 1 times [2022-11-03 03:30:06,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:06,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692106777] [2022-11-03 03:30:06,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:06,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:30:07,847 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 873 trivial. 0 not checked. [2022-11-03 03:30:07,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:07,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692106777] [2022-11-03 03:30:07,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692106777] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:30:07,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:30:07,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:30:07,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423413848] [2022-11-03 03:30:07,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:30:07,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:30:07,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:07,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:30:07,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:30:07,908 INFO L87 Difference]: Start difference. First operand has 2009 states, 1116 states have (on average 1.314516129032258) internal successors, (1467), 1186 states have internal predecessors, (1467), 772 states have call successors, (772), 119 states have call predecessors, (772), 118 states have return successors, (765), 722 states have call predecessors, (765), 765 states have call successors, (765) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 03:30:12,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:30:13,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:30:13,419 INFO L93 Difference]: Finished difference Result 5883 states and 8922 transitions. [2022-11-03 03:30:13,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:30:13,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 174 [2022-11-03 03:30:13,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:30:13,489 INFO L225 Difference]: With dead ends: 5883 [2022-11-03 03:30:13,489 INFO L226 Difference]: Without dead ends: 3894 [2022-11-03 03:30:13,517 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 [2022-11-03 03:30:13,521 INFO L413 NwaCegarLoop]: 3368 mSDtfsCounter, 2863 mSDsluCounter, 2946 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2863 SdHoareTripleChecker+Valid, 5979 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:30:13,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2863 Valid, 5979 Invalid, 727 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 717 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-03 03:30:13,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3894 states. [2022-11-03 03:30:13,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3894 to 3890. [2022-11-03 03:30:13,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3890 states, 2175 states have (on average 1.3103448275862069) internal successors, (2850), 2314 states have internal predecessors, (2850), 1480 states have call successors, (1480), 233 states have call predecessors, (1480), 232 states have return successors, (1476), 1390 states have call predecessors, (1476), 1476 states have call successors, (1476) [2022-11-03 03:30:13,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3890 states to 3890 states and 5806 transitions. [2022-11-03 03:30:13,934 INFO L78 Accepts]: Start accepts. Automaton has 3890 states and 5806 transitions. Word has length 174 [2022-11-03 03:30:13,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:30:13,936 INFO L495 AbstractCegarLoop]: Abstraction has 3890 states and 5806 transitions. [2022-11-03 03:30:13,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 03:30:13,936 INFO L276 IsEmpty]: Start isEmpty. Operand 3890 states and 5806 transitions. [2022-11-03 03:30:13,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-03 03:30:13,944 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:13,945 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] [2022-11-03 03:30:13,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:30:13,945 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)] === [2022-11-03 03:30:13,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:13,946 INFO L85 PathProgramCache]: Analyzing trace with hash -524676207, now seen corresponding path program 1 times [2022-11-03 03:30:13,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:13,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221474381] [2022-11-03 03:30:13,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:13,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:30:14,348 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-03 03:30:14,348 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:14,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221474381] [2022-11-03 03:30:14,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221474381] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:30:14,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:30:14,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:30:14,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607201205] [2022-11-03 03:30:14,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:30:14,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:30:14,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:14,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:30:14,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:30:14,354 INFO L87 Difference]: Start difference. First operand 3890 states and 5806 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-03 03:30:17,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:30:17,492 INFO L93 Difference]: Finished difference Result 11350 states and 16960 transitions. [2022-11-03 03:30:17,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:30:17,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 181 [2022-11-03 03:30:17,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:30:17,562 INFO L225 Difference]: With dead ends: 11350 [2022-11-03 03:30:17,562 INFO L226 Difference]: Without dead ends: 7491 [2022-11-03 03:30:17,593 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 [2022-11-03 03:30:17,594 INFO L413 NwaCegarLoop]: 3364 mSDtfsCounter, 2730 mSDsluCounter, 2969 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2730 SdHoareTripleChecker+Valid, 5993 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:30:17,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2730 Valid, 5993 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-03 03:30:17,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7491 states. [2022-11-03 03:30:18,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7491 to 7461. [2022-11-03 03:30:18,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7461 states, 4162 states have (on average 1.3092263334935128) internal successors, (5449), 4434 states have internal predecessors, (5449), 2843 states have call successors, (2843), 454 states have call predecessors, (2843), 453 states have return successors, (2863), 2660 states have call predecessors, (2863), 2839 states have call successors, (2863) [2022-11-03 03:30:18,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7461 states to 7461 states and 11155 transitions. [2022-11-03 03:30:18,236 INFO L78 Accepts]: Start accepts. Automaton has 7461 states and 11155 transitions. Word has length 181 [2022-11-03 03:30:18,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:30:18,238 INFO L495 AbstractCegarLoop]: Abstraction has 7461 states and 11155 transitions. [2022-11-03 03:30:18,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-03 03:30:18,239 INFO L276 IsEmpty]: Start isEmpty. Operand 7461 states and 11155 transitions. [2022-11-03 03:30:18,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-03 03:30:18,249 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:18,250 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] [2022-11-03 03:30:18,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:30:18,251 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)] === [2022-11-03 03:30:18,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:18,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1159250457, now seen corresponding path program 1 times [2022-11-03 03:30:18,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:18,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985141941] [2022-11-03 03:30:18,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:18,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:30:18,609 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-03 03:30:18,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:18,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985141941] [2022-11-03 03:30:18,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985141941] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:30:18,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:30:18,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:30:18,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628979972] [2022-11-03 03:30:18,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:30:18,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:30:18,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:18,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:30:18,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:30:18,613 INFO L87 Difference]: Start difference. First operand 7461 states and 11155 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 03:30:23,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:30:23,202 INFO L93 Difference]: Finished difference Result 21045 states and 31407 transitions. [2022-11-03 03:30:23,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:30:23,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 183 [2022-11-03 03:30:23,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:30:23,379 INFO L225 Difference]: With dead ends: 21045 [2022-11-03 03:30:23,379 INFO L226 Difference]: Without dead ends: 13615 [2022-11-03 03:30:23,455 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 [2022-11-03 03:30:23,459 INFO L413 NwaCegarLoop]: 3403 mSDtfsCounter, 2429 mSDsluCounter, 2934 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2429 SdHoareTripleChecker+Valid, 6005 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:30:23,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2429 Valid, 6005 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-03 03:30:23,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13615 states. [2022-11-03 03:30:24,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13615 to 13573. [2022-11-03 03:30:24,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13573 states, 7598 states have (on average 1.3060015793629902) internal successors, (9923), 8108 states have internal predecessors, (9923), 5087 states have call successors, (5087), 886 states have call predecessors, (5087), 885 states have return successors, (5217), 4722 states have call predecessors, (5217), 5083 states have call successors, (5217) [2022-11-03 03:30:24,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13573 states to 13573 states and 20227 transitions. [2022-11-03 03:30:24,585 INFO L78 Accepts]: Start accepts. Automaton has 13573 states and 20227 transitions. Word has length 183 [2022-11-03 03:30:24,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:30:24,588 INFO L495 AbstractCegarLoop]: Abstraction has 13573 states and 20227 transitions. [2022-11-03 03:30:24,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 03:30:24,588 INFO L276 IsEmpty]: Start isEmpty. Operand 13573 states and 20227 transitions. [2022-11-03 03:30:24,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-03 03:30:24,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:24,598 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, 1, 1] [2022-11-03 03:30:24,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:30:24,599 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)] === [2022-11-03 03:30:24,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:24,600 INFO L85 PathProgramCache]: Analyzing trace with hash 272374042, now seen corresponding path program 1 times [2022-11-03 03:30:24,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:24,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716219936] [2022-11-03 03:30:24,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:24,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:30:25,408 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-03 03:30:25,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:25,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716219936] [2022-11-03 03:30:25,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716219936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:30:25,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:30:25,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:30:25,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939722954] [2022-11-03 03:30:25,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:30:25,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:30:25,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:25,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:30:25,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:30:25,411 INFO L87 Difference]: Start difference. First operand 13573 states and 20227 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 03:30:40,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:30:40,410 INFO L93 Difference]: Finished difference Result 35474 states and 52827 transitions. [2022-11-03 03:30:40,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:30:40,411 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 186 [2022-11-03 03:30:40,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:30:40,632 INFO L225 Difference]: With dead ends: 35474 [2022-11-03 03:30:40,633 INFO L226 Difference]: Without dead ends: 21932 [2022-11-03 03:30:40,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:30:40,758 INFO L413 NwaCegarLoop]: 4828 mSDtfsCounter, 7124 mSDsluCounter, 7145 mSDsCounter, 0 mSdLazyCounter, 4571 mSolverCounterSat, 1132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7395 SdHoareTripleChecker+Valid, 10876 SdHoareTripleChecker+Invalid, 5703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1132 IncrementalHoareTripleChecker+Valid, 4571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:30:40,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7395 Valid, 10876 Invalid, 5703 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1132 Valid, 4571 Invalid, 0 Unknown, 0 Unchecked, 13.3s Time] [2022-11-03 03:30:40,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21932 states. [2022-11-03 03:30:42,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21932 to 21860. [2022-11-03 03:30:42,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21860 states, 12259 states have (on average 1.3067134350273268) internal successors, (16019), 13127 states have internal predecessors, (16019), 8144 states have call successors, (8144), 1463 states have call predecessors, (8144), 1454 states have return successors, (8295), 7491 states have call predecessors, (8295), 8140 states have call successors, (8295) [2022-11-03 03:30:42,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21860 states to 21860 states and 32458 transitions. [2022-11-03 03:30:42,704 INFO L78 Accepts]: Start accepts. Automaton has 21860 states and 32458 transitions. Word has length 186 [2022-11-03 03:30:42,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:30:42,709 INFO L495 AbstractCegarLoop]: Abstraction has 21860 states and 32458 transitions. [2022-11-03 03:30:42,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 03:30:42,710 INFO L276 IsEmpty]: Start isEmpty. Operand 21860 states and 32458 transitions. [2022-11-03 03:30:42,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-03 03:30:42,723 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:42,723 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, 1, 1, 1] [2022-11-03 03:30:42,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:30:42,725 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)] === [2022-11-03 03:30:42,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:42,726 INFO L85 PathProgramCache]: Analyzing trace with hash 772255043, now seen corresponding path program 1 times [2022-11-03 03:30:42,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:42,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060772428] [2022-11-03 03:30:42,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:42,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:30:43,047 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-03 03:30:43,048 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:43,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060772428] [2022-11-03 03:30:43,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060772428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:30:43,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:30:43,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:30:43,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291261107] [2022-11-03 03:30:43,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:30:43,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:30:43,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:43,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:30:43,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:30:43,051 INFO L87 Difference]: Start difference. First operand 21860 states and 32458 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, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-03 03:30:48,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:30:48,402 INFO L93 Difference]: Finished difference Result 64262 states and 95366 transitions. [2022-11-03 03:30:48,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:30:48,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 187 [2022-11-03 03:30:48,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:30:48,938 INFO L225 Difference]: With dead ends: 64262 [2022-11-03 03:30:48,939 INFO L226 Difference]: Without dead ends: 42433 [2022-11-03 03:30:49,181 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 [2022-11-03 03:30:49,182 INFO L413 NwaCegarLoop]: 3487 mSDtfsCounter, 2883 mSDsluCounter, 2910 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2883 SdHoareTripleChecker+Valid, 6062 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:30:49,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2883 Valid, 6062 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-03 03:30:49,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42433 states. [2022-11-03 03:30:52,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42433 to 42343. [2022-11-03 03:30:52,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42343 states, 23751 states have (on average 1.3084922740095153) internal successors, (31078), 25479 states have internal predecessors, (31078), 15732 states have call successors, (15732), 2872 states have call predecessors, (15732), 2857 states have return successors, (16031), 14421 states have call predecessors, (16031), 15728 states have call successors, (16031) [2022-11-03 03:30:52,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42343 states to 42343 states and 62841 transitions. [2022-11-03 03:30:52,584 INFO L78 Accepts]: Start accepts. Automaton has 42343 states and 62841 transitions. Word has length 187 [2022-11-03 03:30:52,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:30:52,585 INFO L495 AbstractCegarLoop]: Abstraction has 42343 states and 62841 transitions. [2022-11-03 03:30:52,585 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, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-03 03:30:52,586 INFO L276 IsEmpty]: Start isEmpty. Operand 42343 states and 62841 transitions. [2022-11-03 03:30:52,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-03 03:30:52,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:52,602 INFO L195 NwaCegarLoop]: trace histogram [17, 15, 15, 15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:30:52,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:30:52,602 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)] === [2022-11-03 03:30:52,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:52,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1682274342, now seen corresponding path program 1 times [2022-11-03 03:30:52,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:52,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54732051] [2022-11-03 03:30:52,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:52,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:30:52,915 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 902 trivial. 0 not checked. [2022-11-03 03:30:52,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:52,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54732051] [2022-11-03 03:30:52,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54732051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:30:52,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:30:52,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:30:52,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055498540] [2022-11-03 03:30:52,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:30:52,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:30:52,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:52,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:30:52,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:30:52,919 INFO L87 Difference]: Start difference. First operand 42343 states and 62841 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-03 03:30:59,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:31:01,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:01,004 INFO L93 Difference]: Finished difference Result 117885 states and 175178 transitions. [2022-11-03 03:31:01,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:31:01,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 209 [2022-11-03 03:31:01,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:01,654 INFO L225 Difference]: With dead ends: 117885 [2022-11-03 03:31:01,655 INFO L226 Difference]: Without dead ends: 75573 [2022-11-03 03:31:02,085 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 [2022-11-03 03:31:02,086 INFO L413 NwaCegarLoop]: 3496 mSDtfsCounter, 2910 mSDsluCounter, 2967 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2910 SdHoareTripleChecker+Valid, 6123 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:02,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2910 Valid, 6123 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-03 03:31:02,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75573 states. [2022-11-03 03:31:07,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75573 to 75499. [2022-11-03 03:31:07,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75499 states, 42290 states have (on average 1.3088673445258927) internal successors, (55352), 45377 states have internal predecessors, (55352), 28154 states have call successors, (28154), 5085 states have call predecessors, (28154), 5052 states have return successors, (28744), 25802 states have call predecessors, (28744), 28150 states have call successors, (28744) [2022-11-03 03:31:08,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75499 states to 75499 states and 112250 transitions. [2022-11-03 03:31:08,095 INFO L78 Accepts]: Start accepts. Automaton has 75499 states and 112250 transitions. Word has length 209 [2022-11-03 03:31:08,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:08,096 INFO L495 AbstractCegarLoop]: Abstraction has 75499 states and 112250 transitions. [2022-11-03 03:31:08,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-03 03:31:08,096 INFO L276 IsEmpty]: Start isEmpty. Operand 75499 states and 112250 transitions. [2022-11-03 03:31:08,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 03:31:08,109 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:08,109 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:08,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 03:31:08,109 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 03:31:08,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:08,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1001808225, now seen corresponding path program 1 times [2022-11-03 03:31:08,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:08,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55923028] [2022-11-03 03:31:08,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:08,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:08,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1006 trivial. 0 not checked. [2022-11-03 03:31:08,756 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:31:08,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55923028] [2022-11-03 03:31:08,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55923028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:31:08,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:31:08,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:31:08,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166612419] [2022-11-03 03:31:08,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:31:08,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:31:08,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:08,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:31:08,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:31:08,759 INFO L87 Difference]: Start difference. First operand 75499 states and 112250 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-03 03:31:15,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:15,564 INFO L93 Difference]: Finished difference Result 75505 states and 112255 transitions. [2022-11-03 03:31:15,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:31:15,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 218 [2022-11-03 03:31:15,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:15,993 INFO L225 Difference]: With dead ends: 75505 [2022-11-03 03:31:15,993 INFO L226 Difference]: Without dead ends: 75503 [2022-11-03 03:31:16,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:31:16,050 INFO L413 NwaCegarLoop]: 2626 mSDtfsCounter, 2913 mSDsluCounter, 5932 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2925 SdHoareTripleChecker+Valid, 7864 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:16,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2925 Valid, 7864 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1061 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-03 03:31:16,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75503 states.