./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_fs-autofs4-autofs4.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_03503c73-1a67-454a-9803-eba398b48b58/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03503c73-1a67-454a-9803-eba398b48b58/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03503c73-1a67-454a-9803-eba398b48b58/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03503c73-1a67-454a-9803-eba398b48b58/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03503c73-1a67-454a-9803-eba398b48b58/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03503c73-1a67-454a-9803-eba398b48b58/bin/utaipan-Xvt2sAort0 --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 ebed12b86dce507000a7a0630996a9595573172c73db75fed69855441af252c1 --- 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-e04fb08 [2022-11-16 15:52:38,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 15:52:38,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 15:52:38,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 15:52:38,309 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 15:52:38,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 15:52:38,315 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 15:52:38,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 15:52:38,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 15:52:38,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 15:52:38,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 15:52:38,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 15:52:38,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 15:52:38,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 15:52:38,337 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 15:52:38,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 15:52:38,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 15:52:38,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 15:52:38,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 15:52:38,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 15:52:38,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 15:52:38,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 15:52:38,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 15:52:38,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 15:52:38,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 15:52:38,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 15:52:38,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 15:52:38,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 15:52:38,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 15:52:38,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 15:52:38,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 15:52:38,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 15:52:38,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 15:52:38,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 15:52:38,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 15:52:38,380 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 15:52:38,381 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 15:52:38,381 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 15:52:38,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 15:52:38,382 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 15:52:38,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 15:52:38,384 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03503c73-1a67-454a-9803-eba398b48b58/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-16 15:52:38,425 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 15:52:38,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 15:52:38,426 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 15:52:38,427 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 15:52:38,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 15:52:38,428 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 15:52:38,428 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 15:52:38,429 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 15:52:38,429 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 15:52:38,429 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 15:52:38,431 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 15:52:38,431 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 15:52:38,431 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 15:52:38,432 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 15:52:38,432 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 15:52:38,432 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 15:52:38,433 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 15:52:38,433 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 15:52:38,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 15:52:38,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 15:52:38,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 15:52:38,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 15:52:38,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 15:52:38,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 15:52:38,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 15:52:38,436 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 15:52:38,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 15:52:38,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 15:52:38,437 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 15:52:38,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:52:38,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 15:52:38,438 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 15:52:38,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 15:52:38,439 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 15:52:38,439 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 15:52:38,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 15:52:38,440 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 15:52:38,440 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 15:52:38,440 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_03503c73-1a67-454a-9803-eba398b48b58/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03503c73-1a67-454a-9803-eba398b48b58/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebed12b86dce507000a7a0630996a9595573172c73db75fed69855441af252c1 [2022-11-16 15:52:38,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 15:52:38,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 15:52:38,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 15:52:38,793 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 15:52:38,794 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 15:52:38,795 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03503c73-1a67-454a-9803-eba398b48b58/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i [2022-11-16 15:52:38,886 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03503c73-1a67-454a-9803-eba398b48b58/bin/utaipan-Xvt2sAort0/data/9d2e0b710/55afaaef352343d09bb2c1a4adb12e45/FLAGd50df00e0 [2022-11-16 15:52:39,832 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 15:52:39,833 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03503c73-1a67-454a-9803-eba398b48b58/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i [2022-11-16 15:52:39,890 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03503c73-1a67-454a-9803-eba398b48b58/bin/utaipan-Xvt2sAort0/data/9d2e0b710/55afaaef352343d09bb2c1a4adb12e45/FLAGd50df00e0 [2022-11-16 15:52:40,242 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03503c73-1a67-454a-9803-eba398b48b58/bin/utaipan-Xvt2sAort0/data/9d2e0b710/55afaaef352343d09bb2c1a4adb12e45 [2022-11-16 15:52:40,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 15:52:40,246 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 15:52:40,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 15:52:40,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 15:52:40,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 15:52:40,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:52:40" (1/1) ... [2022-11-16 15:52:40,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74738be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:40, skipping insertion in model container [2022-11-16 15:52:40,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:52:40" (1/1) ... [2022-11-16 15:52:40,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 15:52:40,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 15:52:44,362 WARN L229 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_03503c73-1a67-454a-9803-eba398b48b58/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402143,402156] [2022-11-16 15:52:44,365 WARN L229 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_03503c73-1a67-454a-9803-eba398b48b58/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402312,402325] [2022-11-16 15:52:44,366 WARN L229 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_03503c73-1a67-454a-9803-eba398b48b58/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402479,402492] [2022-11-16 15:52:44,366 WARN L229 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_03503c73-1a67-454a-9803-eba398b48b58/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402647,402660] [2022-11-16 15:52:44,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:52:44,444 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 15:52:45,008 WARN L229 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_03503c73-1a67-454a-9803-eba398b48b58/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402143,402156] [2022-11-16 15:52:45,009 WARN L229 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_03503c73-1a67-454a-9803-eba398b48b58/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402312,402325] [2022-11-16 15:52:45,009 WARN L229 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_03503c73-1a67-454a-9803-eba398b48b58/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402479,402492] [2022-11-16 15:52:45,010 WARN L229 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_03503c73-1a67-454a-9803-eba398b48b58/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402647,402660] [2022-11-16 15:52:45,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:52:45,216 INFO L208 MainTranslator]: Completed translation [2022-11-16 15:52:45,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:45 WrapperNode [2022-11-16 15:52:45,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 15:52:45,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 15:52:45,218 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 15:52:45,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 15:52:45,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:45" (1/1) ... [2022-11-16 15:52:45,380 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:45" (1/1) ... [2022-11-16 15:52:45,642 INFO L138 Inliner]: procedures = 553, calls = 3861, calls flagged for inlining = 272, calls inlined = 248, statements flattened = 9201 [2022-11-16 15:52:45,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 15:52:45,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 15:52:45,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 15:52:45,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 15:52:45,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:45" (1/1) ... [2022-11-16 15:52:45,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:45" (1/1) ... [2022-11-16 15:52:45,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:45" (1/1) ... [2022-11-16 15:52:45,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:45" (1/1) ... [2022-11-16 15:52:45,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:45" (1/1) ... [2022-11-16 15:52:46,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:45" (1/1) ... [2022-11-16 15:52:46,074 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:45" (1/1) ... [2022-11-16 15:52:46,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:45" (1/1) ... [2022-11-16 15:52:46,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 15:52:46,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 15:52:46,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 15:52:46,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 15:52:46,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:45" (1/1) ... [2022-11-16 15:52:46,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:52:46,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03503c73-1a67-454a-9803-eba398b48b58/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:52:46,195 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03503c73-1a67-454a-9803-eba398b48b58/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 15:52:46,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03503c73-1a67-454a-9803-eba398b48b58/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 15:52:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_evict_inode [2022-11-16 15:52:46,262 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_evict_inode [2022-11-16 15:52:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure dput [2022-11-16 15:52:46,262 INFO L138 BoogieDeclarations]: Found implementation of procedure dput [2022-11-16 15:52:46,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-16 15:52:46,263 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-16 15:52:46,263 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_unlink [2022-11-16 15:52:46,263 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_unlink [2022-11-16 15:52:46,263 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_get_inode [2022-11-16 15:52:46,264 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_get_inode [2022-11-16 15:52:46,264 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-16 15:52:46,264 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-16 15:52:46,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 15:52:46,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 15:52:46,265 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_lseek [2022-11-16 15:52:46,265 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_lseek [2022-11-16 15:52:46,265 INFO L130 BoogieDeclarations]: Found specification of procedure do_expire_wait [2022-11-16 15:52:46,265 INFO L138 BoogieDeclarations]: Found implementation of procedure do_expire_wait [2022-11-16 15:52:46,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-16 15:52:46,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-16 15:52:46,266 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-16 15:52:46,266 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-16 15:52:46,266 INFO L130 BoogieDeclarations]: Found specification of procedure dget [2022-11-16 15:52:46,266 INFO L138 BoogieDeclarations]: Found implementation of procedure dget [2022-11-16 15:52:46,266 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2022-11-16 15:52:46,267 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2022-11-16 15:52:46,267 INFO L130 BoogieDeclarations]: Found specification of procedure current_kernel_time [2022-11-16 15:52:46,267 INFO L138 BoogieDeclarations]: Found implementation of procedure current_kernel_time [2022-11-16 15:52:46,267 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_expire_indirect [2022-11-16 15:52:46,267 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_expire_indirect [2022-11-16 15:52:46,268 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2022-11-16 15:52:46,268 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2022-11-16 15:52:46,268 INFO L130 BoogieDeclarations]: Found specification of procedure managed_dentry_clear_managed [2022-11-16 15:52:46,268 INFO L138 BoogieDeclarations]: Found implementation of procedure managed_dentry_clear_managed [2022-11-16 15:52:46,268 INFO L130 BoogieDeclarations]: Found specification of procedure from_kgid_munged [2022-11-16 15:52:46,269 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kgid_munged [2022-11-16 15:52:46,269 INFO L130 BoogieDeclarations]: Found specification of procedure follow_down_one [2022-11-16 15:52:46,269 INFO L138 BoogieDeclarations]: Found implementation of procedure follow_down_one [2022-11-16 15:52:46,269 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_show_options [2022-11-16 15:52:46,269 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_show_options [2022-11-16 15:52:46,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_48 [2022-11-16 15:52:46,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_48 [2022-11-16 15:52:46,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_57 [2022-11-16 15:52:46,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_57 [2022-11-16 15:52:46,272 INFO L130 BoogieDeclarations]: Found specification of procedure __autofs4_add_expiring [2022-11-16 15:52:46,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __autofs4_add_expiring [2022-11-16 15:52:46,272 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-16 15:52:46,273 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_expire_wait [2022-11-16 15:52:46,273 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_expire_wait [2022-11-16 15:52:46,273 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_dev_ioctl [2022-11-16 15:52:46,273 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_dev_ioctl [2022-11-16 15:52:46,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-16 15:52:46,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-16 15:52:46,274 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-16 15:52:46,274 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-16 15:52:46,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-16 15:52:46,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-16 15:52:46,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 15:52:46,275 INFO L130 BoogieDeclarations]: Found specification of procedure d_count [2022-11-16 15:52:46,275 INFO L138 BoogieDeclarations]: Found implementation of procedure d_count [2022-11-16 15:52:46,275 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-16 15:52:46,275 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-16 15:52:46,276 INFO L130 BoogieDeclarations]: Found specification of procedure from_kuid_munged [2022-11-16 15:52:46,276 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kuid_munged [2022-11-16 15:52:46,276 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-16 15:52:46,276 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-16 15:52:46,276 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-16 15:52:46,277 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-16 15:52:46,277 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2022-11-16 15:52:46,277 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2022-11-16 15:52:46,277 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_oz_mode [2022-11-16 15:52:46,277 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_oz_mode [2022-11-16 15:52:46,277 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_do_expire_multi [2022-11-16 15:52:46,278 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_do_expire_multi [2022-11-16 15:52:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2022-11-16 15:52:46,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2022-11-16 15:52:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure __task_pid_nr_ns [2022-11-16 15:52:46,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __task_pid_nr_ns [2022-11-16 15:52:46,279 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-16 15:52:46,279 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-16 15:52:46,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_54 [2022-11-16 15:52:46,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_54 [2022-11-16 15:52:46,279 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_sbi [2022-11-16 15:52:46,280 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_sbi [2022-11-16 15:52:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 15:52:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-16 15:52:46,280 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-16 15:52:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_siglock_of_sighand_struct [2022-11-16 15:52:46,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_siglock_of_sighand_struct [2022-11-16 15:52:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_new_ino [2022-11-16 15:52:46,281 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_new_ino [2022-11-16 15:52:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure simple_empty [2022-11-16 15:52:46,281 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_empty [2022-11-16 15:52:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 15:52:46,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-16 15:52:46,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-16 15:52:46,282 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_can_expire [2022-11-16 15:52:46,282 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_can_expire [2022-11-16 15:52:46,282 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dentry_ino [2022-11-16 15:52:46,283 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dentry_ino [2022-11-16 15:52:46,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 15:52:46,283 INFO L130 BoogieDeclarations]: Found specification of procedure fget [2022-11-16 15:52:46,283 INFO L138 BoogieDeclarations]: Found implementation of procedure fget [2022-11-16 15:52:46,283 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_open [2022-11-16 15:52:46,284 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_open [2022-11-16 15:52:46,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 15:52:46,284 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 15:52:46,284 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_rmdir [2022-11-16 15:52:46,284 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_rmdir [2022-11-16 15:52:46,285 INFO L130 BoogieDeclarations]: Found specification of procedure may_umount [2022-11-16 15:52:46,285 INFO L138 BoogieDeclarations]: Found implementation of procedure may_umount [2022-11-16 15:52:46,285 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_dev_ioctl_exit [2022-11-16 15:52:46,285 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_dev_ioctl_exit [2022-11-16 15:52:46,285 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-16 15:52:46,286 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-16 15:52:46,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-16 15:52:46,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-16 15:52:46,286 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_open [2022-11-16 15:52:46,286 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_open [2022-11-16 15:52:46,286 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-16 15:52:46,287 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-16 15:52:46,287 INFO L130 BoogieDeclarations]: Found specification of procedure clear_nlink [2022-11-16 15:52:46,287 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_nlink [2022-11-16 15:52:46,287 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_type_trigger [2022-11-16 15:52:46,287 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_type_trigger [2022-11-16 15:52:46,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-16 15:52:46,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-16 15:52:46,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 15:52:46,288 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2022-11-16 15:52:46,288 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2022-11-16 15:52:46,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-16 15:52:46,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-16 15:52:46,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-16 15:52:46,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-16 15:52:46,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-16 15:52:46,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-16 15:52:46,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-16 15:52:46,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-16 15:52:46,290 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2022-11-16 15:52:46,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-16 15:52:46,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-16 15:52:46,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 15:52:46,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-16 15:52:46,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-16 15:52:46,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 15:52:46,291 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-16 15:52:46,291 INFO L130 BoogieDeclarations]: Found specification of procedure simple_positive [2022-11-16 15:52:46,291 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_positive [2022-11-16 15:52:46,292 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-16 15:52:46,292 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-16 15:52:46,292 INFO L130 BoogieDeclarations]: Found specification of procedure path_get [2022-11-16 15:52:46,292 INFO L138 BoogieDeclarations]: Found implementation of procedure path_get [2022-11-16 15:52:46,292 INFO L130 BoogieDeclarations]: Found specification of procedure dget_dlock [2022-11-16 15:52:46,292 INFO L138 BoogieDeclarations]: Found implementation of procedure dget_dlock [2022-11-16 15:52:46,293 INFO L130 BoogieDeclarations]: Found specification of procedure d_lookup [2022-11-16 15:52:46,293 INFO L138 BoogieDeclarations]: Found implementation of procedure d_lookup [2022-11-16 15:52:46,293 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-16 15:52:46,293 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-16 15:52:46,293 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-16 15:52:46,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-16 15:52:46,294 INFO L130 BoogieDeclarations]: Found specification of procedure recalc_sigpending [2022-11-16 15:52:46,294 INFO L138 BoogieDeclarations]: Found implementation of procedure recalc_sigpending [2022-11-16 15:52:46,294 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-16 15:52:46,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-16 15:52:46,294 INFO L130 BoogieDeclarations]: Found specification of procedure d_drop [2022-11-16 15:52:46,294 INFO L138 BoogieDeclarations]: Found implementation of procedure d_drop [2022-11-16 15:52:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_mount [2022-11-16 15:52:46,295 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_mount [2022-11-16 15:52:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_type_indirect [2022-11-16 15:52:46,295 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_type_indirect [2022-11-16 15:52:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 15:52:46,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 15:52:46,296 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_mount_wait [2022-11-16 15:52:46,296 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_mount_wait [2022-11-16 15:52:46,296 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-16 15:52:46,296 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-16 15:52:46,296 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_ioctl [2022-11-16 15:52:46,297 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_ioctl [2022-11-16 15:52:46,297 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-16 15:52:46,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-16 15:52:46,297 INFO L130 BoogieDeclarations]: Found specification of procedure complete_all [2022-11-16 15:52:46,297 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_all [2022-11-16 15:52:46,298 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2022-11-16 15:52:46,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2022-11-16 15:52:46,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 15:52:46,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 15:52:46,298 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_wait_release [2022-11-16 15:52:46,298 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_wait_release [2022-11-16 15:52:46,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 15:52:46,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 15:52:46,299 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_ioctl_unlocked [2022-11-16 15:52:46,299 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_ioctl_unlocked [2022-11-16 15:52:46,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-16 15:52:46,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-16 15:52:46,300 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2022-11-16 15:52:46,300 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2022-11-16 15:52:46,300 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-16 15:52:46,300 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-16 15:52:46,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-11-16 15:52:46,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-11-16 15:52:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_compat_ioctl [2022-11-16 15:52:46,301 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_compat_ioctl [2022-11-16 15:52:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure read_seqretry [2022-11-16 15:52:46,301 INFO L138 BoogieDeclarations]: Found implementation of procedure read_seqretry [2022-11-16 15:52:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-16 15:52:46,302 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-16 15:52:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-16 15:52:46,302 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-16 15:52:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_readdir [2022-11-16 15:52:46,302 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_readdir [2022-11-16 15:52:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure d_instantiate [2022-11-16 15:52:46,303 INFO L138 BoogieDeclarations]: Found implementation of procedure d_instantiate [2022-11-16 15:52:46,303 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-16 15:52:46,303 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-16 15:52:46,303 INFO L130 BoogieDeclarations]: Found specification of procedure may_umount_tree [2022-11-16 15:52:46,303 INFO L138 BoogieDeclarations]: Found implementation of procedure may_umount_tree [2022-11-16 15:52:46,304 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-16 15:52:46,304 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-16 15:52:46,304 INFO L130 BoogieDeclarations]: Found specification of procedure simple_statfs [2022-11-16 15:52:46,304 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_statfs [2022-11-16 15:52:46,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 15:52:46,304 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 15:52:46,305 INFO L130 BoogieDeclarations]: Found specification of procedure get_task_pid [2022-11-16 15:52:46,305 INFO L138 BoogieDeclarations]: Found implementation of procedure get_task_pid [2022-11-16 15:52:46,305 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2022-11-16 15:52:46,305 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2022-11-16 15:52:46,305 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_mount_busy [2022-11-16 15:52:46,305 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_mount_busy [2022-11-16 15:52:46,306 INFO L130 BoogieDeclarations]: Found specification of procedure d_unhashed [2022-11-16 15:52:46,306 INFO L138 BoogieDeclarations]: Found implementation of procedure d_unhashed [2022-11-16 15:52:46,306 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-16 15:52:46,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-16 15:52:46,306 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_kill_sb [2022-11-16 15:52:46,306 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_kill_sb [2022-11-16 15:52:46,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 15:52:46,307 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-16 15:52:46,307 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-16 15:52:46,307 INFO L130 BoogieDeclarations]: Found specification of procedure generic_read_dir [2022-11-16 15:52:46,307 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_read_dir [2022-11-16 15:52:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-16 15:52:46,308 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-16 15:52:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure managed_dentry_set_managed [2022-11-16 15:52:46,308 INFO L138 BoogieDeclarations]: Found implementation of procedure managed_dentry_set_managed [2022-11-16 15:52:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 15:52:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-11-16 15:52:46,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-11-16 15:52:46,309 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2022-11-16 15:52:46,309 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2022-11-16 15:52:46,309 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-16 15:52:46,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-16 15:52:46,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 15:52:46,310 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-16 15:52:46,310 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-16 15:52:46,310 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-16 15:52:46,310 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-16 15:52:46,310 INFO L130 BoogieDeclarations]: Found specification of procedure find_autofs_mount [2022-11-16 15:52:46,311 INFO L138 BoogieDeclarations]: Found implementation of procedure find_autofs_mount [2022-11-16 15:52:46,311 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-16 15:52:46,311 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-16 15:52:46,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-16 15:52:46,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-16 15:52:46,311 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_close [2022-11-16 15:52:46,312 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_close [2022-11-16 15:52:46,312 INFO L130 BoogieDeclarations]: Found specification of procedure ns_of_pid [2022-11-16 15:52:46,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_of_pid [2022-11-16 15:52:46,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-16 15:52:46,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-16 15:52:46,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_55 [2022-11-16 15:52:46,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_55 [2022-11-16 15:52:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-16 15:52:46,313 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-16 15:52:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_clean_ino [2022-11-16 15:52:46,313 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_clean_ino [2022-11-16 15:52:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_49 [2022-11-16 15:52:46,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_49 [2022-11-16 15:52:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_77 [2022-11-16 15:52:46,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_77 [2022-11-16 15:52:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure kern_path_mountpoint [2022-11-16 15:52:46,314 INFO L138 BoogieDeclarations]: Found implementation of procedure kern_path_mountpoint [2022-11-16 15:52:46,315 INFO L130 BoogieDeclarations]: Found specification of procedure get_next_positive_dentry [2022-11-16 15:52:46,315 INFO L138 BoogieDeclarations]: Found implementation of procedure get_next_positive_dentry [2022-11-16 15:52:46,315 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 15:52:46,315 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 15:52:46,315 INFO L130 BoogieDeclarations]: Found specification of procedure __managed_dentry_set_managed [2022-11-16 15:52:46,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __managed_dentry_set_managed [2022-11-16 15:52:46,316 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_wait [2022-11-16 15:52:46,316 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_wait [2022-11-16 15:52:46,316 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_find_wait [2022-11-16 15:52:46,316 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_find_wait [2022-11-16 15:52:46,316 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-11-16 15:52:46,316 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-11-16 15:52:46,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_exit_autofs4_fs_8_2 [2022-11-16 15:52:46,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_exit_autofs4_fs_8_2 [2022-11-16 15:52:46,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 15:52:46,317 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dentry_release [2022-11-16 15:52:46,317 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dentry_release [2022-11-16 15:52:46,317 INFO L130 BoogieDeclarations]: Found specification of procedure task_pgrp_nr [2022-11-16 15:52:46,318 INFO L138 BoogieDeclarations]: Found implementation of procedure task_pgrp_nr [2022-11-16 15:52:46,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 15:52:46,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 15:52:46,318 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2022-11-16 15:52:46,318 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2022-11-16 15:52:46,318 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_symlink [2022-11-16 15:52:46,319 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_symlink [2022-11-16 15:52:46,319 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2022-11-16 15:52:46,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2022-11-16 15:52:46,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_78 [2022-11-16 15:52:46,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_78 [2022-11-16 15:52:46,319 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2022-11-16 15:52:46,320 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2022-11-16 15:52:46,320 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-16 15:52:46,320 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-16 15:52:46,320 INFO L130 BoogieDeclarations]: Found specification of procedure d_mountpoint [2022-11-16 15:52:46,320 INFO L138 BoogieDeclarations]: Found implementation of procedure d_mountpoint [2022-11-16 15:52:46,320 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-16 15:52:46,321 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-16 15:52:46,321 INFO L130 BoogieDeclarations]: Found specification of procedure have_submounts [2022-11-16 15:52:46,321 INFO L138 BoogieDeclarations]: Found implementation of procedure have_submounts [2022-11-16 15:52:46,321 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-11-16 15:52:46,321 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-11-16 15:52:46,321 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-16 15:52:46,322 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-16 15:52:46,322 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-16 15:52:46,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-16 15:52:46,322 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-16 15:52:46,322 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-16 15:52:46,322 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_prepare_pipe [2022-11-16 15:52:46,323 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_prepare_pipe [2022-11-16 15:52:46,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-16 15:52:46,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-16 15:52:46,323 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_del_active [2022-11-16 15:52:46,323 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_del_active [2022-11-16 15:52:46,323 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-16 15:52:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-16 15:52:46,324 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-16 15:52:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-16 15:52:46,324 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-16 15:52:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-16 15:52:46,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 15:52:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure d_add [2022-11-16 15:52:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure d_add [2022-11-16 15:52:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_catatonic_mode [2022-11-16 15:52:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_catatonic_mode [2022-11-16 15:52:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure gid_eq [2022-11-16 15:52:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_eq [2022-11-16 15:52:46,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-16 15:52:46,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-16 15:52:46,326 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-16 15:52:46,326 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2022-11-16 15:52:46,326 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2022-11-16 15:52:47,672 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 15:52:47,680 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 15:52:47,924 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 15:52:48,836 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint switch_break: call ULTIMATE.dealloc(~#descriptor~12#1.base, ~#descriptor~12#1.offset);havoc ~#descriptor~12#1.base, ~#descriptor~12#1.offset; [2022-11-16 15:52:57,574 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-16 15:52:57,867 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 15:53:00,024 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 15:53:00,025 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-16 15:53:00,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:53:00 BoogieIcfgContainer [2022-11-16 15:53:00,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 15:53:00,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 15:53:00,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 15:53:00,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 15:53:00,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:52:40" (1/3) ... [2022-11-16 15:53:00,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b91b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:53:00, skipping insertion in model container [2022-11-16 15:53:00,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:45" (2/3) ... [2022-11-16 15:53:00,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b91b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:53:00, skipping insertion in model container [2022-11-16 15:53:00,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:53:00" (3/3) ... [2022-11-16 15:53:00,040 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i [2022-11-16 15:53:00,060 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 15:53:00,061 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-16 15:53:00,157 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 15:53:00,164 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;@26f4c370, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 15:53:00,164 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-16 15:53:00,176 INFO L276 IsEmpty]: Start isEmpty. Operand has 2633 states, 1548 states have (on average 1.3152454780361758) internal successors, (2036), 1601 states have internal predecessors, (2036), 917 states have call successors, (917), 165 states have call predecessors, (917), 164 states have return successors, (906), 900 states have call predecessors, (906), 906 states have call successors, (906) [2022-11-16 15:53:00,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2022-11-16 15:53:00,211 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:53:00,212 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:53:00,212 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-16 15:53:00,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:53:00,218 INFO L85 PathProgramCache]: Analyzing trace with hash -611961188, now seen corresponding path program 1 times [2022-11-16 15:53:00,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:53:00,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359218728] [2022-11-16 15:53:00,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:00,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:53:00,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:53:01,590 INFO L134 CoverageAnalysis]: Checked inductivity of 7656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7656 trivial. 0 not checked. [2022-11-16 15:53:01,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:53:01,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359218728] [2022-11-16 15:53:01,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359218728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:53:01,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:53:01,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 15:53:01,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986537594] [2022-11-16 15:53:01,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:53:01,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 15:53:01,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:53:01,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 15:53:01,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:53:01,651 INFO L87 Difference]: Start difference. First operand has 2633 states, 1548 states have (on average 1.3152454780361758) internal successors, (2036), 1601 states have internal predecessors, (2036), 917 states have call successors, (917), 165 states have call predecessors, (917), 164 states have return successors, (906), 900 states have call predecessors, (906), 906 states have call successors, (906) Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-16 15:53:04,326 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 [] [2022-11-16 15:53:07,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:53:08,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:53:08,380 INFO L93 Difference]: Finished difference Result 7432 states and 11199 transitions. [2022-11-16 15:53:08,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 15:53:08,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 465 [2022-11-16 15:53:08,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:53:08,434 INFO L225 Difference]: With dead ends: 7432 [2022-11-16 15:53:08,434 INFO L226 Difference]: Without dead ends: 4872 [2022-11-16 15:53:08,458 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 [2022-11-16 15:53:08,461 INFO L413 NwaCegarLoop]: 4809 mSDtfsCounter, 3327 mSDsluCounter, 3390 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3331 SdHoareTripleChecker+Valid, 8199 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-16 15:53:08,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3331 Valid, 8199 Invalid, 902 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 889 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-11-16 15:53:08,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4872 states. [2022-11-16 15:53:08,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4872 to 4865. [2022-11-16 15:53:08,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4865 states, 2874 states have (on average 1.3072372999304105) internal successors, (3757), 2967 states have internal predecessors, (3757), 1668 states have call successors, (1668), 320 states have call predecessors, (1668), 319 states have return successors, (1668), 1652 states have call predecessors, (1668), 1664 states have call successors, (1668) [2022-11-16 15:53:08,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4865 states to 4865 states and 7093 transitions. [2022-11-16 15:53:08,908 INFO L78 Accepts]: Start accepts. Automaton has 4865 states and 7093 transitions. Word has length 465 [2022-11-16 15:53:08,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:53:08,918 INFO L495 AbstractCegarLoop]: Abstraction has 4865 states and 7093 transitions. [2022-11-16 15:53:08,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-16 15:53:08,919 INFO L276 IsEmpty]: Start isEmpty. Operand 4865 states and 7093 transitions. [2022-11-16 15:53:08,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2022-11-16 15:53:08,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:53:08,942 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:53:08,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 15:53:08,943 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-16 15:53:08,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:53:08,944 INFO L85 PathProgramCache]: Analyzing trace with hash -894850449, now seen corresponding path program 1 times [2022-11-16 15:53:08,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:53:08,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486063499] [2022-11-16 15:53:08,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:08,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:53:09,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:53:09,899 INFO L134 CoverageAnalysis]: Checked inductivity of 7656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7656 trivial. 0 not checked. [2022-11-16 15:53:09,899 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:53:09,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486063499] [2022-11-16 15:53:09,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486063499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:53:09,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:53:09,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 15:53:09,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975133902] [2022-11-16 15:53:09,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:53:09,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 15:53:09,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:53:09,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 15:53:09,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:53:09,906 INFO L87 Difference]: Start difference. First operand 4865 states and 7093 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-16 15:53:12,326 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 [] [2022-11-16 15:53:14,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:53:16,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:53:18,773 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 [] [2022-11-16 15:53:19,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:53:19,648 INFO L93 Difference]: Finished difference Result 11808 states and 17181 transitions. [2022-11-16 15:53:19,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 15:53:19,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 480 [2022-11-16 15:53:19,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:53:19,699 INFO L225 Difference]: With dead ends: 11808 [2022-11-16 15:53:19,700 INFO L226 Difference]: Without dead ends: 7032 [2022-11-16 15:53:19,727 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 [2022-11-16 15:53:19,728 INFO L413 NwaCegarLoop]: 4787 mSDtfsCounter, 3228 mSDsluCounter, 3380 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3230 SdHoareTripleChecker+Valid, 8167 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-16 15:53:19,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3230 Valid, 8167 Invalid, 933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 917 Invalid, 3 Unknown, 0 Unchecked, 9.3s Time] [2022-11-16 15:53:19,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7032 states. [2022-11-16 15:53:20,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7032 to 7008. [2022-11-16 15:53:20,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7008 states, 4151 states have (on average 1.3054685617923392) internal successors, (5419), 4287 states have internal predecessors, (5419), 2374 states have call successors, (2374), 480 states have call predecessors, (2374), 479 states have return successors, (2380), 2350 states have call predecessors, (2380), 2370 states have call successors, (2380) [2022-11-16 15:53:20,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7008 states to 7008 states and 10173 transitions. [2022-11-16 15:53:20,355 INFO L78 Accepts]: Start accepts. Automaton has 7008 states and 10173 transitions. Word has length 480 [2022-11-16 15:53:20,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:53:20,357 INFO L495 AbstractCegarLoop]: Abstraction has 7008 states and 10173 transitions. [2022-11-16 15:53:20,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-16 15:53:20,358 INFO L276 IsEmpty]: Start isEmpty. Operand 7008 states and 10173 transitions. [2022-11-16 15:53:20,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2022-11-16 15:53:20,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:53:20,375 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:53:20,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 15:53:20,375 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-16 15:53:20,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:53:20,377 INFO L85 PathProgramCache]: Analyzing trace with hash 680801825, now seen corresponding path program 1 times [2022-11-16 15:53:20,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:53:20,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592321020] [2022-11-16 15:53:20,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:20,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:53:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:53:21,088 INFO L134 CoverageAnalysis]: Checked inductivity of 7656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7656 trivial. 0 not checked. [2022-11-16 15:53:21,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:53:21,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592321020] [2022-11-16 15:53:21,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592321020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:53:21,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:53:21,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 15:53:21,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813355104] [2022-11-16 15:53:21,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:53:21,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 15:53:21,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:53:21,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 15:53:21,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:53:21,093 INFO L87 Difference]: Start difference. First operand 7008 states and 10173 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-16 15:53:24,350 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 [] [2022-11-16 15:53:26,509 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 [] [2022-11-16 15:53:27,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:53:27,644 INFO L93 Difference]: Finished difference Result 17920 states and 25952 transitions. [2022-11-16 15:53:27,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 15:53:27,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 481 [2022-11-16 15:53:27,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:53:27,720 INFO L225 Difference]: With dead ends: 17920 [2022-11-16 15:53:27,720 INFO L226 Difference]: Without dead ends: 11001 [2022-11-16 15:53:27,757 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 [2022-11-16 15:53:27,761 INFO L413 NwaCegarLoop]: 4189 mSDtfsCounter, 3100 mSDsluCounter, 3381 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3102 SdHoareTripleChecker+Valid, 7570 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-16 15:53:27,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3102 Valid, 7570 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 838 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-11-16 15:53:27,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11001 states. [2022-11-16 15:53:28,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11001 to 10975. [2022-11-16 15:53:28,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10975 states, 6495 states have (on average 1.3010007698229407) internal successors, (8450), 6717 states have internal predecessors, (8450), 3691 states have call successors, (3691), 786 states have call predecessors, (3691), 785 states have return successors, (3711), 3649 states have call predecessors, (3711), 3687 states have call successors, (3711) [2022-11-16 15:53:28,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10975 states to 10975 states and 15852 transitions. [2022-11-16 15:53:28,413 INFO L78 Accepts]: Start accepts. Automaton has 10975 states and 15852 transitions. Word has length 481 [2022-11-16 15:53:28,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:53:28,415 INFO L495 AbstractCegarLoop]: Abstraction has 10975 states and 15852 transitions. [2022-11-16 15:53:28,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-16 15:53:28,416 INFO L276 IsEmpty]: Start isEmpty. Operand 10975 states and 15852 transitions. [2022-11-16 15:53:28,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2022-11-16 15:53:28,428 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:53:28,428 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:53:28,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 15:53:28,429 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-16 15:53:28,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:53:28,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1484564777, now seen corresponding path program 1 times [2022-11-16 15:53:28,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:53:28,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721064856] [2022-11-16 15:53:28,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:28,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:53:28,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:53:29,005 INFO L134 CoverageAnalysis]: Checked inductivity of 7656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7656 trivial. 0 not checked. [2022-11-16 15:53:29,006 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:53:29,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721064856] [2022-11-16 15:53:29,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721064856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:53:29,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:53:29,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 15:53:29,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975477231] [2022-11-16 15:53:29,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:53:29,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 15:53:29,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:53:29,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 15:53:29,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:53:29,010 INFO L87 Difference]: Start difference. First operand 10975 states and 15852 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-16 15:53:32,143 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 [] [2022-11-16 15:53:34,413 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 [] [2022-11-16 15:53:35,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:53:35,559 INFO L93 Difference]: Finished difference Result 29402 states and 42340 transitions. [2022-11-16 15:53:35,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 15:53:35,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 480 [2022-11-16 15:53:35,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:53:35,686 INFO L225 Difference]: With dead ends: 29402 [2022-11-16 15:53:35,687 INFO L226 Difference]: Without dead ends: 18516 [2022-11-16 15:53:35,863 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 [2022-11-16 15:53:35,864 INFO L413 NwaCegarLoop]: 4144 mSDtfsCounter, 2996 mSDsluCounter, 3408 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3000 SdHoareTripleChecker+Valid, 7552 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-16 15:53:35,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3000 Valid, 7552 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 808 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-11-16 15:53:35,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18516 states. [2022-11-16 15:53:36,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18516 to 18482. [2022-11-16 15:53:36,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18482 states, 10925 states have (on average 1.2983066361556064) internal successors, (14184), 11285 states have internal predecessors, (14184), 6163 states have call successors, (6163), 1391 states have call predecessors, (6163), 1390 states have return successors, (6211), 6092 states have call predecessors, (6211), 6159 states have call successors, (6211) [2022-11-16 15:53:36,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18482 states to 18482 states and 26558 transitions. [2022-11-16 15:53:36,985 INFO L78 Accepts]: Start accepts. Automaton has 18482 states and 26558 transitions. Word has length 480 [2022-11-16 15:53:36,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:53:36,986 INFO L495 AbstractCegarLoop]: Abstraction has 18482 states and 26558 transitions. [2022-11-16 15:53:36,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-16 15:53:36,986 INFO L276 IsEmpty]: Start isEmpty. Operand 18482 states and 26558 transitions. [2022-11-16 15:53:37,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-11-16 15:53:37,005 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:53:37,005 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:53:37,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 15:53:37,006 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-16 15:53:37,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:53:37,007 INFO L85 PathProgramCache]: Analyzing trace with hash 2110673959, now seen corresponding path program 1 times [2022-11-16 15:53:37,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:53:37,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132909801] [2022-11-16 15:53:37,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:37,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:53:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:53:37,650 INFO L134 CoverageAnalysis]: Checked inductivity of 7660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7660 trivial. 0 not checked. [2022-11-16 15:53:37,652 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:53:37,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132909801] [2022-11-16 15:53:37,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132909801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:53:37,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:53:37,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 15:53:37,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642922793] [2022-11-16 15:53:37,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:53:37,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 15:53:37,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:53:37,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 15:53:37,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:53:37,656 INFO L87 Difference]: Start difference. First operand 18482 states and 26558 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-16 15:53:40,227 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 [] [2022-11-16 15:53:43,766 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 [] [2022-11-16 15:53:44,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:53:44,607 INFO L93 Difference]: Finished difference Result 50315 states and 72176 transitions. [2022-11-16 15:53:44,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 15:53:44,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) Word has length 484 [2022-11-16 15:53:44,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:53:44,807 INFO L225 Difference]: With dead ends: 50315 [2022-11-16 15:53:44,807 INFO L226 Difference]: Without dead ends: 31922 [2022-11-16 15:53:44,884 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 [2022-11-16 15:53:44,884 INFO L413 NwaCegarLoop]: 4168 mSDtfsCounter, 2963 mSDsluCounter, 3401 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2965 SdHoareTripleChecker+Valid, 7569 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-16 15:53:44,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2965 Valid, 7569 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 818 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-11-16 15:53:44,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31922 states. [2022-11-16 15:53:46,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31922 to 31882. [2022-11-16 15:53:46,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31882 states, 18868 states have (on average 1.297434810260759) internal successors, (24480), 19456 states have internal predecessors, (24480), 10548 states have call successors, (10548), 2463 states have call predecessors, (10548), 2462 states have return successors, (10634), 10402 states have call predecessors, (10634), 10544 states have call successors, (10634) [2022-11-16 15:53:46,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31882 states to 31882 states and 45662 transitions. [2022-11-16 15:53:46,846 INFO L78 Accepts]: Start accepts. Automaton has 31882 states and 45662 transitions. Word has length 484 [2022-11-16 15:53:46,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:53:46,847 INFO L495 AbstractCegarLoop]: Abstraction has 31882 states and 45662 transitions. [2022-11-16 15:53:46,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-16 15:53:46,848 INFO L276 IsEmpty]: Start isEmpty. Operand 31882 states and 45662 transitions. [2022-11-16 15:53:46,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2022-11-16 15:53:46,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:53:46,856 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:53:46,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 15:53:46,856 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-16 15:53:46,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:53:46,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1539324321, now seen corresponding path program 1 times [2022-11-16 15:53:46,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:53:46,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192963259] [2022-11-16 15:53:46,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:46,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:53:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:53:47,406 INFO L134 CoverageAnalysis]: Checked inductivity of 7658 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7658 trivial. 0 not checked. [2022-11-16 15:53:47,407 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:53:47,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192963259] [2022-11-16 15:53:47,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192963259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:53:47,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:53:47,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 15:53:47,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651461232] [2022-11-16 15:53:47,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:53:47,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 15:53:47,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:53:47,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 15:53:47,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:53:47,410 INFO L87 Difference]: Start difference. First operand 31882 states and 45662 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-16 15:53:50,095 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 [] [2022-11-16 15:53:54,891 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 [] [2022-11-16 15:53:56,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:53:56,689 INFO L93 Difference]: Finished difference Result 85722 states and 122564 transitions. [2022-11-16 15:53:56,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 15:53:56,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 507 [2022-11-16 15:53:56,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:53:57,071 INFO L225 Difference]: With dead ends: 85722 [2022-11-16 15:53:57,073 INFO L226 Difference]: Without dead ends: 53929 [2022-11-16 15:53:57,230 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 [2022-11-16 15:53:57,231 INFO L413 NwaCegarLoop]: 5172 mSDtfsCounter, 3247 mSDsluCounter, 3384 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3249 SdHoareTripleChecker+Valid, 8556 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-16 15:53:57,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3249 Valid, 8556 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 949 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-11-16 15:53:57,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53929 states. [2022-11-16 15:53:59,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53929 to 53857. [2022-11-16 15:53:59,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53857 states, 32027 states have (on average 1.2955631186186656) internal successors, (41493), 33065 states have internal predecessors, (41493), 17535 states have call successors, (17535), 4304 states have call predecessors, (17535), 4291 states have return successors, (17761), 17253 states have call predecessors, (17761), 17531 states have call successors, (17761) [2022-11-16 15:54:00,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53857 states to 53857 states and 76789 transitions. [2022-11-16 15:54:00,170 INFO L78 Accepts]: Start accepts. Automaton has 53857 states and 76789 transitions. Word has length 507 [2022-11-16 15:54:00,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:54:00,171 INFO L495 AbstractCegarLoop]: Abstraction has 53857 states and 76789 transitions. [2022-11-16 15:54:00,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-16 15:54:00,172 INFO L276 IsEmpty]: Start isEmpty. Operand 53857 states and 76789 transitions. [2022-11-16 15:54:00,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2022-11-16 15:54:00,181 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:54:00,181 INFO L195 NwaCegarLoop]: trace histogram [48, 44, 44, 44, 44, 44, 44, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:54:00,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 15:54:00,182 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-16 15:54:00,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:54:00,182 INFO L85 PathProgramCache]: Analyzing trace with hash 2067384561, now seen corresponding path program 1 times [2022-11-16 15:54:00,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:54:00,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457038206] [2022-11-16 15:54:00,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:54:00,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:54:00,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:54:01,828 INFO L134 CoverageAnalysis]: Checked inductivity of 7963 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7963 trivial. 0 not checked. [2022-11-16 15:54:01,828 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:54:01,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457038206] [2022-11-16 15:54:01,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457038206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:54:01,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:54:01,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 15:54:01,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805354108] [2022-11-16 15:54:01,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:54:01,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 15:54:01,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:54:01,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 15:54:01,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 15:54:01,831 INFO L87 Difference]: Start difference. First operand 53857 states and 76789 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-16 15:54:04,457 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 [] [2022-11-16 15:54:08,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:54:10,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:54:12,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:54:15,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:54:16,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:54:16,828 INFO L93 Difference]: Finished difference Result 55123 states and 78529 transitions. [2022-11-16 15:54:16,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 15:54:16,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 515 [2022-11-16 15:54:16,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:54:17,117 INFO L225 Difference]: With dead ends: 55123 [2022-11-16 15:54:17,118 INFO L226 Difference]: Without dead ends: 55121 [2022-11-16 15:54:17,139 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 [2022-11-16 15:54:17,140 INFO L413 NwaCegarLoop]: 4490 mSDtfsCounter, 3407 mSDsluCounter, 10788 mSDsCounter, 0 mSdLazyCounter, 1622 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3417 SdHoareTripleChecker+Valid, 15278 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1622 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-11-16 15:54:17,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3417 Valid, 15278 Invalid, 1627 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1622 Invalid, 4 Unknown, 0 Unchecked, 12.7s Time] [2022-11-16 15:54:17,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55121 states. [2022-11-16 15:54:19,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55121 to 55115. [2022-11-16 15:54:19,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55115 states, 32742 states have (on average 1.2948506505405901) internal successors, (42396), 33806 states have internal predecessors, (42396), 17950 states have call successors, (17950), 4431 states have call predecessors, (17950), 4419 states have return successors, (18178), 17666 states have call predecessors, (18178), 17946 states have call successors, (18178) [2022-11-16 15:54:20,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55115 states to 55115 states and 78524 transitions. [2022-11-16 15:54:20,451 INFO L78 Accepts]: Start accepts. Automaton has 55115 states and 78524 transitions. Word has length 515 [2022-11-16 15:54:20,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:54:20,452 INFO L495 AbstractCegarLoop]: Abstraction has 55115 states and 78524 transitions. [2022-11-16 15:54:20,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-16 15:54:20,453 INFO L276 IsEmpty]: Start isEmpty. Operand 55115 states and 78524 transitions. [2022-11-16 15:54:20,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2022-11-16 15:54:20,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:54:20,460 INFO L195 NwaCegarLoop]: trace histogram [48, 44, 44, 44, 44, 44, 44, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:54:20,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 15:54:20,461 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-16 15:54:20,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:54:20,461 INFO L85 PathProgramCache]: Analyzing trace with hash 142456979, now seen corresponding path program 1 times [2022-11-16 15:54:20,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:54:20,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721665208] [2022-11-16 15:54:20,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:54:20,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:54:20,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:54:21,683 INFO L134 CoverageAnalysis]: Checked inductivity of 7965 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7963 trivial. 0 not checked. [2022-11-16 15:54:21,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:54:21,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721665208] [2022-11-16 15:54:21,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721665208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:54:21,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:54:21,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 15:54:21,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087585771] [2022-11-16 15:54:21,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:54:21,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 15:54:21,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:54:21,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 15:54:21,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 15:54:21,687 INFO L87 Difference]: Start difference. First operand 55115 states and 78524 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-16 15:54:24,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:54:29,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:54:31,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:54:31,944 INFO L93 Difference]: Finished difference Result 97642 states and 138579 transitions. [2022-11-16 15:54:31,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 15:54:31,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 520 [2022-11-16 15:54:31,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:54:32,602 INFO L225 Difference]: With dead ends: 97642 [2022-11-16 15:54:32,603 INFO L226 Difference]: Without dead ends: 97640 [2022-11-16 15:54:32,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 15:54:32,641 INFO L413 NwaCegarLoop]: 4497 mSDtfsCounter, 2975 mSDsluCounter, 12042 mSDsCounter, 0 mSdLazyCounter, 1755 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2984 SdHoareTripleChecker+Valid, 16539 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1755 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-16 15:54:32,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2984 Valid, 16539 Invalid, 1760 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1755 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-11-16 15:54:32,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97640 states. [2022-11-16 15:54:37,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97640 to 97601. [2022-11-16 15:54:37,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97601 states, 58167 states have (on average 1.2935857101105437) internal successors, (75244), 60163 states have internal predecessors, (75244), 31251 states have call successors, (31251), 8262 states have call predecessors, (31251), 8179 states have return successors, (32046), 30502 states have call predecessors, (32046), 31243 states have call successors, (32046) [2022-11-16 15:54:38,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97601 states to 97601 states and 138541 transitions. [2022-11-16 15:54:38,176 INFO L78 Accepts]: Start accepts. Automaton has 97601 states and 138541 transitions. Word has length 520 [2022-11-16 15:54:38,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:54:38,177 INFO L495 AbstractCegarLoop]: Abstraction has 97601 states and 138541 transitions. [2022-11-16 15:54:38,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-16 15:54:38,178 INFO L276 IsEmpty]: Start isEmpty. Operand 97601 states and 138541 transitions. [2022-11-16 15:54:38,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2022-11-16 15:54:38,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:54:38,187 INFO L195 NwaCegarLoop]: trace histogram [49, 44, 44, 44, 44, 44, 44, 5, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:54:38,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 15:54:38,188 INFO L420 AbstractCegarLoop]: === Iteration 9 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-16 15:54:38,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:54:38,189 INFO L85 PathProgramCache]: Analyzing trace with hash -826242644, now seen corresponding path program 1 times [2022-11-16 15:54:38,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:54:38,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888807355] [2022-11-16 15:54:38,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:54:38,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:54:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:54:39,631 INFO L134 CoverageAnalysis]: Checked inductivity of 8070 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8066 trivial. 0 not checked. [2022-11-16 15:54:39,632 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:54:39,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888807355] [2022-11-16 15:54:39,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888807355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:54:39,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:54:39,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 15:54:39,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518727968] [2022-11-16 15:54:39,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:54:39,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 15:54:39,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:54:39,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 15:54:39,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 15:54:39,635 INFO L87 Difference]: Start difference. First operand 97601 states and 138541 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-16 15:54:42,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:54:46,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:54:50,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:54:50,133 INFO L93 Difference]: Finished difference Result 97625 states and 138565 transitions. [2022-11-16 15:54:50,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 15:54:50,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 534 [2022-11-16 15:54:50,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:54:50,605 INFO L225 Difference]: With dead ends: 97625 [2022-11-16 15:54:50,605 INFO L226 Difference]: Without dead ends: 97623 [2022-11-16 15:54:50,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 15:54:50,643 INFO L413 NwaCegarLoop]: 4374 mSDtfsCounter, 3400 mSDsluCounter, 10550 mSDsCounter, 0 mSdLazyCounter, 1588 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3410 SdHoareTripleChecker+Valid, 14924 SdHoareTripleChecker+Invalid, 1591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1588 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-16 15:54:50,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3410 Valid, 14924 Invalid, 1591 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1588 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-11-16 15:54:50,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97623 states. [2022-11-16 15:54:55,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97623 to 97617. [2022-11-16 15:54:56,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97617 states, 58177 states have (on average 1.29353524588755) internal successors, (75254), 60177 states have internal predecessors, (75254), 31251 states have call successors, (31251), 8264 states have call predecessors, (31251), 8185 states have return successors, (32054), 30502 states have call predecessors, (32054), 31243 states have call successors, (32054)