./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 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbb5ec0d-c9bb-4728-a558-41a991fcbd6b/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbb5ec0d-c9bb-4728-a558-41a991fcbd6b/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbb5ec0d-c9bb-4728-a558-41a991fcbd6b/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbb5ec0d-c9bb-4728-a558-41a991fcbd6b/bin/utaipan-I9t0OCRTmS/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_fbb5ec0d-c9bb-4728-a558-41a991fcbd6b/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbb5ec0d-c9bb-4728-a558-41a991fcbd6b/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-8393723 [2022-11-19 07:10:59,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:10:59,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:10:59,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:10:59,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:10:59,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:10:59,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:10:59,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:10:59,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:10:59,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:10:59,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:10:59,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:10:59,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:10:59,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:10:59,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:10:59,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:10:59,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:10:59,219 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:10:59,221 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:10:59,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:10:59,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:10:59,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:10:59,227 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:10:59,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:10:59,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:10:59,232 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:10:59,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:10:59,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:10:59,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:10:59,235 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:10:59,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:10:59,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:10:59,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:10:59,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:10:59,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:10:59,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:10:59,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:10:59,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:10:59,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:10:59,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:10:59,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:10:59,243 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbb5ec0d-c9bb-4728-a558-41a991fcbd6b/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:10:59,283 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:10:59,286 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:10:59,287 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:10:59,288 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:10:59,289 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:10:59,289 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:10:59,289 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:10:59,289 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:10:59,290 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:10:59,290 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:10:59,291 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:10:59,291 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:10:59,291 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:10:59,291 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:10:59,292 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:10:59,292 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:10:59,292 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:10:59,292 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:10:59,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:10:59,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:10:59,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:10:59,294 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:10:59,294 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:10:59,295 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:10:59,296 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:10:59,296 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:10:59,296 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:10:59,296 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:10:59,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:10:59,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:10:59,297 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:10:59,297 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:10:59,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:10:59,298 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:10:59,299 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:10:59,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:10:59,299 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:10:59,299 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:10:59,299 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_fbb5ec0d-c9bb-4728-a558-41a991fcbd6b/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbb5ec0d-c9bb-4728-a558-41a991fcbd6b/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebed12b86dce507000a7a0630996a9595573172c73db75fed69855441af252c1 [2022-11-19 07:10:59,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:10:59,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:10:59,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:10:59,585 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:10:59,586 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:10:59,587 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbb5ec0d-c9bb-4728-a558-41a991fcbd6b/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i [2022-11-19 07:10:59,657 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbb5ec0d-c9bb-4728-a558-41a991fcbd6b/bin/utaipan-I9t0OCRTmS/data/b88e58cff/1eef273de65743e8b834db364fc3566a/FLAGac38c7b38 [2022-11-19 07:11:00,653 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:11:00,653 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbb5ec0d-c9bb-4728-a558-41a991fcbd6b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i [2022-11-19 07:11:00,737 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbb5ec0d-c9bb-4728-a558-41a991fcbd6b/bin/utaipan-I9t0OCRTmS/data/b88e58cff/1eef273de65743e8b834db364fc3566a/FLAGac38c7b38 [2022-11-19 07:11:01,006 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbb5ec0d-c9bb-4728-a558-41a991fcbd6b/bin/utaipan-I9t0OCRTmS/data/b88e58cff/1eef273de65743e8b834db364fc3566a [2022-11-19 07:11:01,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:11:01,012 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:11:01,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:11:01,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:11:01,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:11:01,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:11:01" (1/1) ... [2022-11-19 07:11:01,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30c7a699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:01, skipping insertion in model container [2022-11-19 07:11:01,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:11:01" (1/1) ... [2022-11-19 07:11:01,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:11:01,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:11:05,049 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbb5ec0d-c9bb-4728-a558-41a991fcbd6b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402143,402156] [2022-11-19 07:11:05,056 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbb5ec0d-c9bb-4728-a558-41a991fcbd6b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402312,402325] [2022-11-19 07:11:05,056 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbb5ec0d-c9bb-4728-a558-41a991fcbd6b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402479,402492] [2022-11-19 07:11:05,057 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbb5ec0d-c9bb-4728-a558-41a991fcbd6b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402647,402660] [2022-11-19 07:11:05,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:11:05,118 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:11:05,580 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbb5ec0d-c9bb-4728-a558-41a991fcbd6b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402143,402156] [2022-11-19 07:11:05,581 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbb5ec0d-c9bb-4728-a558-41a991fcbd6b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402312,402325] [2022-11-19 07:11:05,582 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbb5ec0d-c9bb-4728-a558-41a991fcbd6b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402479,402492] [2022-11-19 07:11:05,582 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbb5ec0d-c9bb-4728-a558-41a991fcbd6b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402647,402660] [2022-11-19 07:11:05,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:11:05,797 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:11:05,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:05 WrapperNode [2022-11-19 07:11:05,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:11:05,799 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:11:05,799 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:11:05,800 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:11:05,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:05" (1/1) ... [2022-11-19 07:11:05,957 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:05" (1/1) ... [2022-11-19 07:11:06,305 INFO L138 Inliner]: procedures = 553, calls = 3861, calls flagged for inlining = 272, calls inlined = 248, statements flattened = 9201 [2022-11-19 07:11:06,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:11:06,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:11:06,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:11:06,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:11:06,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:05" (1/1) ... [2022-11-19 07:11:06,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:05" (1/1) ... [2022-11-19 07:11:06,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:05" (1/1) ... [2022-11-19 07:11:06,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:05" (1/1) ... [2022-11-19 07:11:06,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:05" (1/1) ... [2022-11-19 07:11:06,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:05" (1/1) ... [2022-11-19 07:11:06,641 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:05" (1/1) ... [2022-11-19 07:11:06,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:05" (1/1) ... [2022-11-19 07:11:06,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:11:06,805 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:11:06,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:11:06,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:11:06,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:05" (1/1) ... [2022-11-19 07:11:06,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:11:06,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbb5ec0d-c9bb-4728-a558-41a991fcbd6b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:11:06,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbb5ec0d-c9bb-4728-a558-41a991fcbd6b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:11:06,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbb5ec0d-c9bb-4728-a558-41a991fcbd6b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:11:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_evict_inode [2022-11-19 07:11:06,883 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_evict_inode [2022-11-19 07:11:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure dput [2022-11-19 07:11:06,883 INFO L138 BoogieDeclarations]: Found implementation of procedure dput [2022-11-19 07:11:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 07:11:06,883 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 07:11:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_unlink [2022-11-19 07:11:06,884 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_unlink [2022-11-19 07:11:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_get_inode [2022-11-19 07:11:06,884 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_get_inode [2022-11-19 07:11:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-19 07:11:06,884 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-19 07:11:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:11:06,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:11:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_lseek [2022-11-19 07:11:06,885 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_lseek [2022-11-19 07:11:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure do_expire_wait [2022-11-19 07:11:06,885 INFO L138 BoogieDeclarations]: Found implementation of procedure do_expire_wait [2022-11-19 07:11:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 07:11:06,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 07:11:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-19 07:11:06,886 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-19 07:11:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure dget [2022-11-19 07:11:06,886 INFO L138 BoogieDeclarations]: Found implementation of procedure dget [2022-11-19 07:11:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2022-11-19 07:11:06,887 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2022-11-19 07:11:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure current_kernel_time [2022-11-19 07:11:06,887 INFO L138 BoogieDeclarations]: Found implementation of procedure current_kernel_time [2022-11-19 07:11:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_expire_indirect [2022-11-19 07:11:06,887 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_expire_indirect [2022-11-19 07:11:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2022-11-19 07:11:06,888 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2022-11-19 07:11:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure managed_dentry_clear_managed [2022-11-19 07:11:06,888 INFO L138 BoogieDeclarations]: Found implementation of procedure managed_dentry_clear_managed [2022-11-19 07:11:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure from_kgid_munged [2022-11-19 07:11:06,889 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kgid_munged [2022-11-19 07:11:06,889 INFO L130 BoogieDeclarations]: Found specification of procedure follow_down_one [2022-11-19 07:11:06,889 INFO L138 BoogieDeclarations]: Found implementation of procedure follow_down_one [2022-11-19 07:11:06,889 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_show_options [2022-11-19 07:11:06,890 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_show_options [2022-11-19 07:11:06,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_48 [2022-11-19 07:11:06,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_48 [2022-11-19 07:11:06,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_57 [2022-11-19 07:11:06,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_57 [2022-11-19 07:11:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure __autofs4_add_expiring [2022-11-19 07:11:06,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __autofs4_add_expiring [2022-11-19 07:11:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 07:11:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_expire_wait [2022-11-19 07:11:06,892 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_expire_wait [2022-11-19 07:11:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_dev_ioctl [2022-11-19 07:11:06,893 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_dev_ioctl [2022-11-19 07:11:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 07:11:06,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 07:11:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-19 07:11:06,894 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-19 07:11:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 07:11:06,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 07:11:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:11:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure d_count [2022-11-19 07:11:06,895 INFO L138 BoogieDeclarations]: Found implementation of procedure d_count [2022-11-19 07:11:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-19 07:11:06,895 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-19 07:11:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure from_kuid_munged [2022-11-19 07:11:06,895 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kuid_munged [2022-11-19 07:11:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-19 07:11:06,896 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-19 07:11:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 07:11:06,896 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 07:11:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2022-11-19 07:11:06,897 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2022-11-19 07:11:06,897 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_oz_mode [2022-11-19 07:11:06,897 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_oz_mode [2022-11-19 07:11:06,897 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_do_expire_multi [2022-11-19 07:11:06,898 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_do_expire_multi [2022-11-19 07:11:06,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2022-11-19 07:11:06,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2022-11-19 07:11:06,898 INFO L130 BoogieDeclarations]: Found specification of procedure __task_pid_nr_ns [2022-11-19 07:11:06,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __task_pid_nr_ns [2022-11-19 07:11:06,899 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 07:11:06,899 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 07:11:06,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_54 [2022-11-19 07:11:06,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_54 [2022-11-19 07:11:06,900 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_sbi [2022-11-19 07:11:06,900 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_sbi [2022-11-19 07:11:06,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:11:06,901 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-19 07:11:06,901 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-19 07:11:06,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_siglock_of_sighand_struct [2022-11-19 07:11:06,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_siglock_of_sighand_struct [2022-11-19 07:11:06,902 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_new_ino [2022-11-19 07:11:06,902 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_new_ino [2022-11-19 07:11:06,902 INFO L130 BoogieDeclarations]: Found specification of procedure simple_empty [2022-11-19 07:11:06,903 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_empty [2022-11-19 07:11:06,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:11:06,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 07:11:06,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 07:11:06,903 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_can_expire [2022-11-19 07:11:06,904 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_can_expire [2022-11-19 07:11:06,904 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dentry_ino [2022-11-19 07:11:06,904 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dentry_ino [2022-11-19 07:11:06,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:11:06,904 INFO L130 BoogieDeclarations]: Found specification of procedure fget [2022-11-19 07:11:06,904 INFO L138 BoogieDeclarations]: Found implementation of procedure fget [2022-11-19 07:11:06,905 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_open [2022-11-19 07:11:06,906 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_open [2022-11-19 07:11:06,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 07:11:06,908 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 07:11:06,908 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_rmdir [2022-11-19 07:11:06,909 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_rmdir [2022-11-19 07:11:06,909 INFO L130 BoogieDeclarations]: Found specification of procedure may_umount [2022-11-19 07:11:06,910 INFO L138 BoogieDeclarations]: Found implementation of procedure may_umount [2022-11-19 07:11:06,911 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_dev_ioctl_exit [2022-11-19 07:11:06,911 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_dev_ioctl_exit [2022-11-19 07:11:06,911 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-19 07:11:06,915 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-19 07:11:06,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 07:11:06,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 07:11:06,916 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_open [2022-11-19 07:11:06,917 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_open [2022-11-19 07:11:06,917 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-19 07:11:06,917 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-19 07:11:06,917 INFO L130 BoogieDeclarations]: Found specification of procedure clear_nlink [2022-11-19 07:11:06,917 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_nlink [2022-11-19 07:11:06,917 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_type_trigger [2022-11-19 07:11:06,917 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_type_trigger [2022-11-19 07:11:06,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 07:11:06,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 07:11:06,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:11:06,918 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2022-11-19 07:11:06,918 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2022-11-19 07:11:06,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-19 07:11:06,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-19 07:11:06,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-19 07:11:06,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-19 07:11:06,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-19 07:11:06,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-19 07:11:06,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-19 07:11:06,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-19 07:11:06,919 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2022-11-19 07:11:06,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-19 07:11:06,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-19 07:11:06,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:11:06,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 07:11:06,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 07:11:06,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:11:06,920 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 07:11:06,920 INFO L130 BoogieDeclarations]: Found specification of procedure simple_positive [2022-11-19 07:11:06,921 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_positive [2022-11-19 07:11:06,921 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-19 07:11:06,921 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-19 07:11:06,921 INFO L130 BoogieDeclarations]: Found specification of procedure path_get [2022-11-19 07:11:06,921 INFO L138 BoogieDeclarations]: Found implementation of procedure path_get [2022-11-19 07:11:06,921 INFO L130 BoogieDeclarations]: Found specification of procedure dget_dlock [2022-11-19 07:11:06,921 INFO L138 BoogieDeclarations]: Found implementation of procedure dget_dlock [2022-11-19 07:11:06,922 INFO L130 BoogieDeclarations]: Found specification of procedure d_lookup [2022-11-19 07:11:06,922 INFO L138 BoogieDeclarations]: Found implementation of procedure d_lookup [2022-11-19 07:11:06,922 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-19 07:11:06,922 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-19 07:11:06,922 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-19 07:11:06,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-19 07:11:06,922 INFO L130 BoogieDeclarations]: Found specification of procedure recalc_sigpending [2022-11-19 07:11:06,922 INFO L138 BoogieDeclarations]: Found implementation of procedure recalc_sigpending [2022-11-19 07:11:06,923 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-19 07:11:06,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-19 07:11:06,923 INFO L130 BoogieDeclarations]: Found specification of procedure d_drop [2022-11-19 07:11:06,923 INFO L138 BoogieDeclarations]: Found implementation of procedure d_drop [2022-11-19 07:11:06,923 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_mount [2022-11-19 07:11:06,923 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_mount [2022-11-19 07:11:06,923 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_type_indirect [2022-11-19 07:11:06,924 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_type_indirect [2022-11-19 07:11:06,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:11:06,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:11:06,924 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_mount_wait [2022-11-19 07:11:06,924 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_mount_wait [2022-11-19 07:11:06,924 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-19 07:11:06,924 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-19 07:11:06,924 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_ioctl [2022-11-19 07:11:06,925 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_ioctl [2022-11-19 07:11:06,926 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-19 07:11:06,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-19 07:11:06,927 INFO L130 BoogieDeclarations]: Found specification of procedure complete_all [2022-11-19 07:11:06,927 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_all [2022-11-19 07:11:06,927 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2022-11-19 07:11:06,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2022-11-19 07:11:06,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:11:06,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:11:06,927 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_wait_release [2022-11-19 07:11:06,928 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_wait_release [2022-11-19 07:11:06,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:11:06,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:11:06,928 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_ioctl_unlocked [2022-11-19 07:11:06,928 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_ioctl_unlocked [2022-11-19 07:11:06,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 07:11:06,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 07:11:06,928 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2022-11-19 07:11:06,929 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2022-11-19 07:11:06,929 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-19 07:11:06,929 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-19 07:11:06,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-11-19 07:11:06,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-11-19 07:11:06,929 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_compat_ioctl [2022-11-19 07:11:06,929 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_compat_ioctl [2022-11-19 07:11:06,929 INFO L130 BoogieDeclarations]: Found specification of procedure read_seqretry [2022-11-19 07:11:06,930 INFO L138 BoogieDeclarations]: Found implementation of procedure read_seqretry [2022-11-19 07:11:06,930 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-19 07:11:06,930 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-19 07:11:06,930 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-19 07:11:06,930 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-19 07:11:06,930 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_readdir [2022-11-19 07:11:06,930 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_readdir [2022-11-19 07:11:06,931 INFO L130 BoogieDeclarations]: Found specification of procedure d_instantiate [2022-11-19 07:11:06,931 INFO L138 BoogieDeclarations]: Found implementation of procedure d_instantiate [2022-11-19 07:11:06,931 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 07:11:06,931 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 07:11:06,931 INFO L130 BoogieDeclarations]: Found specification of procedure may_umount_tree [2022-11-19 07:11:06,931 INFO L138 BoogieDeclarations]: Found implementation of procedure may_umount_tree [2022-11-19 07:11:06,931 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-19 07:11:06,931 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-19 07:11:06,932 INFO L130 BoogieDeclarations]: Found specification of procedure simple_statfs [2022-11-19 07:11:06,932 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_statfs [2022-11-19 07:11:06,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:11:06,932 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:11:06,932 INFO L130 BoogieDeclarations]: Found specification of procedure get_task_pid [2022-11-19 07:11:06,932 INFO L138 BoogieDeclarations]: Found implementation of procedure get_task_pid [2022-11-19 07:11:06,932 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2022-11-19 07:11:06,933 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2022-11-19 07:11:06,933 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_mount_busy [2022-11-19 07:11:06,933 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_mount_busy [2022-11-19 07:11:06,933 INFO L130 BoogieDeclarations]: Found specification of procedure d_unhashed [2022-11-19 07:11:06,933 INFO L138 BoogieDeclarations]: Found implementation of procedure d_unhashed [2022-11-19 07:11:06,933 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-19 07:11:06,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-19 07:11:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_kill_sb [2022-11-19 07:11:06,938 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_kill_sb [2022-11-19 07:11:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:11:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 07:11:06,938 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 07:11:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure generic_read_dir [2022-11-19 07:11:06,939 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_read_dir [2022-11-19 07:11:06,939 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-19 07:11:06,939 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-19 07:11:06,940 INFO L130 BoogieDeclarations]: Found specification of procedure managed_dentry_set_managed [2022-11-19 07:11:06,940 INFO L138 BoogieDeclarations]: Found implementation of procedure managed_dentry_set_managed [2022-11-19 07:11:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:11:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-11-19 07:11:06,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-11-19 07:11:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2022-11-19 07:11:06,941 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2022-11-19 07:11:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-19 07:11:06,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-19 07:11:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:11:06,942 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-19 07:11:06,942 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-19 07:11:06,942 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-19 07:11:06,942 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-19 07:11:06,942 INFO L130 BoogieDeclarations]: Found specification of procedure find_autofs_mount [2022-11-19 07:11:06,942 INFO L138 BoogieDeclarations]: Found implementation of procedure find_autofs_mount [2022-11-19 07:11:06,942 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-19 07:11:06,943 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-19 07:11:06,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 07:11:06,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 07:11:06,943 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_close [2022-11-19 07:11:06,943 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_close [2022-11-19 07:11:06,943 INFO L130 BoogieDeclarations]: Found specification of procedure ns_of_pid [2022-11-19 07:11:06,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_of_pid [2022-11-19 07:11:06,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 07:11:06,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 07:11:06,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_55 [2022-11-19 07:11:06,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_55 [2022-11-19 07:11:06,944 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-19 07:11:06,944 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-19 07:11:06,944 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_clean_ino [2022-11-19 07:11:06,944 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_clean_ino [2022-11-19 07:11:06,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_49 [2022-11-19 07:11:06,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_49 [2022-11-19 07:11:06,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_77 [2022-11-19 07:11:06,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_77 [2022-11-19 07:11:06,945 INFO L130 BoogieDeclarations]: Found specification of procedure kern_path_mountpoint [2022-11-19 07:11:06,945 INFO L138 BoogieDeclarations]: Found implementation of procedure kern_path_mountpoint [2022-11-19 07:11:06,945 INFO L130 BoogieDeclarations]: Found specification of procedure get_next_positive_dentry [2022-11-19 07:11:06,945 INFO L138 BoogieDeclarations]: Found implementation of procedure get_next_positive_dentry [2022-11-19 07:11:06,945 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:11:06,946 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:11:06,946 INFO L130 BoogieDeclarations]: Found specification of procedure __managed_dentry_set_managed [2022-11-19 07:11:06,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __managed_dentry_set_managed [2022-11-19 07:11:06,946 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_wait [2022-11-19 07:11:06,946 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_wait [2022-11-19 07:11:06,946 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_find_wait [2022-11-19 07:11:06,946 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_find_wait [2022-11-19 07:11:06,946 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-11-19 07:11:06,947 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-11-19 07:11:06,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_exit_autofs4_fs_8_2 [2022-11-19 07:11:06,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_exit_autofs4_fs_8_2 [2022-11-19 07:11:06,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:11:06,947 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dentry_release [2022-11-19 07:11:06,947 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dentry_release [2022-11-19 07:11:06,947 INFO L130 BoogieDeclarations]: Found specification of procedure task_pgrp_nr [2022-11-19 07:11:06,947 INFO L138 BoogieDeclarations]: Found implementation of procedure task_pgrp_nr [2022-11-19 07:11:06,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:11:06,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:11:06,948 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2022-11-19 07:11:06,948 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2022-11-19 07:11:06,948 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_symlink [2022-11-19 07:11:06,948 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_symlink [2022-11-19 07:11:06,948 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2022-11-19 07:11:06,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2022-11-19 07:11:06,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_78 [2022-11-19 07:11:06,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_78 [2022-11-19 07:11:06,949 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2022-11-19 07:11:06,949 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2022-11-19 07:11:06,949 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-19 07:11:06,949 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-19 07:11:06,949 INFO L130 BoogieDeclarations]: Found specification of procedure d_mountpoint [2022-11-19 07:11:06,949 INFO L138 BoogieDeclarations]: Found implementation of procedure d_mountpoint [2022-11-19 07:11:06,950 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-19 07:11:06,950 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-19 07:11:06,950 INFO L130 BoogieDeclarations]: Found specification of procedure have_submounts [2022-11-19 07:11:06,950 INFO L138 BoogieDeclarations]: Found implementation of procedure have_submounts [2022-11-19 07:11:06,950 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-11-19 07:11:06,950 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-11-19 07:11:06,950 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-19 07:11:06,950 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-19 07:11:06,951 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-19 07:11:06,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-19 07:11:06,951 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-19 07:11:06,951 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-19 07:11:06,951 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_prepare_pipe [2022-11-19 07:11:06,951 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_prepare_pipe [2022-11-19 07:11:06,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 07:11:06,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 07:11:06,952 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_del_active [2022-11-19 07:11:06,952 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_del_active [2022-11-19 07:11:06,952 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 07:11:06,952 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 07:11:06,952 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:11:06,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:11:06,952 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-19 07:11:06,952 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-19 07:11:06,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:11:06,953 INFO L130 BoogieDeclarations]: Found specification of procedure d_add [2022-11-19 07:11:06,953 INFO L138 BoogieDeclarations]: Found implementation of procedure d_add [2022-11-19 07:11:06,953 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_catatonic_mode [2022-11-19 07:11:06,953 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_catatonic_mode [2022-11-19 07:11:06,953 INFO L130 BoogieDeclarations]: Found specification of procedure gid_eq [2022-11-19 07:11:06,953 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_eq [2022-11-19 07:11:06,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 07:11:06,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 07:11:06,954 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-19 07:11:06,954 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2022-11-19 07:11:06,954 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2022-11-19 07:11:08,261 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:11:08,265 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:11:08,530 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:11:09,414 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; [2022-11-19 07:11:17,817 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 07:11:18,124 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:11:20,358 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:11:20,359 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-19 07:11:20,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:11:20 BoogieIcfgContainer [2022-11-19 07:11:20,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:11:20,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:11:20,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:11:20,373 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:11:20,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:11:01" (1/3) ... [2022-11-19 07:11:20,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fb8106d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:11:20, skipping insertion in model container [2022-11-19 07:11:20,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:05" (2/3) ... [2022-11-19 07:11:20,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fb8106d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:11:20, skipping insertion in model container [2022-11-19 07:11:20,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:11:20" (3/3) ... [2022-11-19 07:11:20,375 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i [2022-11-19 07:11:20,396 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:11:20,397 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-19 07:11:20,519 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:11:20,528 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;@6ba939ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:11:20,528 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-19 07:11:20,542 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) [2022-11-19 07:11:20,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2022-11-19 07:11:20,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:11:20,599 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] [2022-11-19 07:11:20,600 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)] === [2022-11-19 07:11:20,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:11:20,607 INFO L85 PathProgramCache]: Analyzing trace with hash -611961188, now seen corresponding path program 1 times [2022-11-19 07:11:20,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:11:20,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699725080] [2022-11-19 07:11:20,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:11:20,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:11:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:11:21,869 INFO L134 CoverageAnalysis]: Checked inductivity of 7656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7656 trivial. 0 not checked. [2022-11-19 07:11:21,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:11:21,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699725080] [2022-11-19 07:11:21,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699725080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:11:21,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:11:21,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:11:21,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124060816] [2022-11-19 07:11:21,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:11:21,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:11:21,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:11:21,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:11:21,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:11:21,912 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) [2022-11-19 07:11:24,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:27,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:29,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:30,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:11:30,310 INFO L93 Difference]: Finished difference Result 7432 states and 11197 transitions. [2022-11-19 07:11:30,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:11:30,313 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 [2022-11-19 07:11:30,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:11:30,361 INFO L225 Difference]: With dead ends: 7432 [2022-11-19 07:11:30,361 INFO L226 Difference]: Without dead ends: 4872 [2022-11-19 07:11:30,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:11:30,396 INFO L413 NwaCegarLoop]: 4809 mSDtfsCounter, 3328 mSDsluCounter, 3390 mSDsCounter, 0 mSdLazyCounter, 890 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3330 SdHoareTripleChecker+Valid, 8199 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 890 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:11:30,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3330 Valid, 8199 Invalid, 903 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 890 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-11-19 07:11:30,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4872 states. [2022-11-19 07:11:30,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4872 to 4866. [2022-11-19 07:11:30,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4866 states, 2875 states have (on average 1.3071304347826087) internal successors, (3758), 2967 states have internal predecessors, (3758), 1668 states have call successors, (1668), 320 states have call predecessors, (1668), 319 states have return successors, (1666), 1653 states have call predecessors, (1666), 1664 states have call successors, (1666) [2022-11-19 07:11:30,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4866 states to 4866 states and 7092 transitions. [2022-11-19 07:11:30,867 INFO L78 Accepts]: Start accepts. Automaton has 4866 states and 7092 transitions. Word has length 465 [2022-11-19 07:11:30,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:11:30,872 INFO L495 AbstractCegarLoop]: Abstraction has 4866 states and 7092 transitions. [2022-11-19 07:11:30,873 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) [2022-11-19 07:11:30,873 INFO L276 IsEmpty]: Start isEmpty. Operand 4866 states and 7092 transitions. [2022-11-19 07:11:30,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2022-11-19 07:11:30,895 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:11:30,896 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] [2022-11-19 07:11:30,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:11:30,896 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)] === [2022-11-19 07:11:30,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:11:30,897 INFO L85 PathProgramCache]: Analyzing trace with hash 680801825, now seen corresponding path program 1 times [2022-11-19 07:11:30,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:11:30,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553771567] [2022-11-19 07:11:30,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:11:30,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:11:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:11:31,755 INFO L134 CoverageAnalysis]: Checked inductivity of 7656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7656 trivial. 0 not checked. [2022-11-19 07:11:31,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:11:31,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553771567] [2022-11-19 07:11:31,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553771567] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:11:31,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:11:31,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:11:31,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929609760] [2022-11-19 07:11:31,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:11:31,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:11:31,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:11:31,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:11:31,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:11:31,760 INFO L87 Difference]: Start difference. First operand 4866 states and 7092 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) [2022-11-19 07:11:34,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:36,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:38,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:11:38,004 INFO L93 Difference]: Finished difference Result 11634 states and 16910 transitions. [2022-11-19 07:11:38,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:11:38,005 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 [2022-11-19 07:11:38,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:11:38,048 INFO L225 Difference]: With dead ends: 11634 [2022-11-19 07:11:38,048 INFO L226 Difference]: Without dead ends: 6857 [2022-11-19 07:11:38,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:11:38,073 INFO L413 NwaCegarLoop]: 4157 mSDtfsCounter, 3100 mSDsluCounter, 3381 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3102 SdHoareTripleChecker+Valid, 7538 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:11:38,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3102 Valid, 7538 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 834 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-11-19 07:11:38,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6857 states. [2022-11-19 07:11:38,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6857 to 6830. [2022-11-19 07:11:38,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6830 states, 4031 states have (on average 1.3021582733812949) internal successors, (5249), 4167 states have internal predecessors, (5249), 2324 states have call successors, (2324), 472 states have call predecessors, (2324), 471 states have return successors, (2326), 2300 states have call predecessors, (2326), 2320 states have call successors, (2326) [2022-11-19 07:11:38,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6830 states to 6830 states and 9899 transitions. [2022-11-19 07:11:38,474 INFO L78 Accepts]: Start accepts. Automaton has 6830 states and 9899 transitions. Word has length 481 [2022-11-19 07:11:38,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:11:38,476 INFO L495 AbstractCegarLoop]: Abstraction has 6830 states and 9899 transitions. [2022-11-19 07:11:38,477 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) [2022-11-19 07:11:38,477 INFO L276 IsEmpty]: Start isEmpty. Operand 6830 states and 9899 transitions. [2022-11-19 07:11:38,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2022-11-19 07:11:38,490 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:11:38,490 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] [2022-11-19 07:11:38,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:11:38,491 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)] === [2022-11-19 07:11:38,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:11:38,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1484564777, now seen corresponding path program 1 times [2022-11-19 07:11:38,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:11:38,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480131559] [2022-11-19 07:11:38,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:11:38,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:11:38,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:11:39,000 INFO L134 CoverageAnalysis]: Checked inductivity of 7656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7656 trivial. 0 not checked. [2022-11-19 07:11:39,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:11:39,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480131559] [2022-11-19 07:11:39,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480131559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:11:39,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:11:39,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:11:39,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652522859] [2022-11-19 07:11:39,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:11:39,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:11:39,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:11:39,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:11:39,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:11:39,005 INFO L87 Difference]: Start difference. First operand 6830 states and 9899 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) [2022-11-19 07:11:42,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:44,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:45,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:11:45,279 INFO L93 Difference]: Finished difference Result 17340 states and 25049 transitions. [2022-11-19 07:11:45,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:11:45,280 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 [2022-11-19 07:11:45,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:11:45,351 INFO L225 Difference]: With dead ends: 17340 [2022-11-19 07:11:45,351 INFO L226 Difference]: Without dead ends: 10599 [2022-11-19 07:11:45,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:11:45,388 INFO L413 NwaCegarLoop]: 4132 mSDtfsCounter, 2996 mSDsluCounter, 3408 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3000 SdHoareTripleChecker+Valid, 7540 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:11:45,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3000 Valid, 7540 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 805 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-11-19 07:11:45,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10599 states. [2022-11-19 07:11:46,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10599 to 10568. [2022-11-19 07:11:46,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10568 states, 6231 states have (on average 1.299630877868721) internal successors, (8098), 6432 states have internal predecessors, (8098), 3561 states have call successors, (3561), 773 states have call predecessors, (3561), 772 states have return successors, (3573), 3524 states have call predecessors, (3573), 3557 states have call successors, (3573) [2022-11-19 07:11:46,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10568 states to 10568 states and 15232 transitions. [2022-11-19 07:11:46,125 INFO L78 Accepts]: Start accepts. Automaton has 10568 states and 15232 transitions. Word has length 480 [2022-11-19 07:11:46,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:11:46,127 INFO L495 AbstractCegarLoop]: Abstraction has 10568 states and 15232 transitions. [2022-11-19 07:11:46,127 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) [2022-11-19 07:11:46,128 INFO L276 IsEmpty]: Start isEmpty. Operand 10568 states and 15232 transitions. [2022-11-19 07:11:46,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2022-11-19 07:11:46,140 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:11:46,140 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] [2022-11-19 07:11:46,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:11:46,141 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)] === [2022-11-19 07:11:46,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:11:46,142 INFO L85 PathProgramCache]: Analyzing trace with hash -894850449, now seen corresponding path program 1 times [2022-11-19 07:11:46,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:11:46,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742455513] [2022-11-19 07:11:46,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:11:46,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:11:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:11:46,699 INFO L134 CoverageAnalysis]: Checked inductivity of 7656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7656 trivial. 0 not checked. [2022-11-19 07:11:46,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:11:46,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742455513] [2022-11-19 07:11:46,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742455513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:11:46,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:11:46,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:11:46,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145691125] [2022-11-19 07:11:46,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:11:46,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:11:46,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:11:46,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:11:46,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:11:46,702 INFO L87 Difference]: Start difference. First operand 10568 states and 15232 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) [2022-11-19 07:11:49,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:51,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:53,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:54,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:11:54,648 INFO L93 Difference]: Finished difference Result 28986 states and 41734 transitions. [2022-11-19 07:11:54,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:11:54,649 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 [2022-11-19 07:11:54,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:11:54,807 INFO L225 Difference]: With dead ends: 28986 [2022-11-19 07:11:54,808 INFO L226 Difference]: Without dead ends: 18507 [2022-11-19 07:11:54,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:11:54,869 INFO L413 NwaCegarLoop]: 4205 mSDtfsCounter, 3228 mSDsluCounter, 3380 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3230 SdHoareTripleChecker+Valid, 7585 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:11:54,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3230 Valid, 7585 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 842 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-11-19 07:11:54,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18507 states. [2022-11-19 07:11:55,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18507 to 18483. [2022-11-19 07:11:55,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18483 states, 10926 states have (on average 1.2982793336994325) internal successors, (14185), 11285 states have internal predecessors, (14185), 6163 states have call successors, (6163), 1391 states have call predecessors, (6163), 1390 states have return successors, (6209), 6093 states have call predecessors, (6209), 6159 states have call successors, (6209) [2022-11-19 07:11:56,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18483 states to 18483 states and 26557 transitions. [2022-11-19 07:11:56,036 INFO L78 Accepts]: Start accepts. Automaton has 18483 states and 26557 transitions. Word has length 480 [2022-11-19 07:11:56,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:11:56,038 INFO L495 AbstractCegarLoop]: Abstraction has 18483 states and 26557 transitions. [2022-11-19 07:11:56,039 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) [2022-11-19 07:11:56,039 INFO L276 IsEmpty]: Start isEmpty. Operand 18483 states and 26557 transitions. [2022-11-19 07:11:56,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-11-19 07:11:56,050 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:11:56,050 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] [2022-11-19 07:11:56,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:11:56,051 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)] === [2022-11-19 07:11:56,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:11:56,052 INFO L85 PathProgramCache]: Analyzing trace with hash 2110673959, now seen corresponding path program 1 times [2022-11-19 07:11:56,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:11:56,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423257706] [2022-11-19 07:11:56,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:11:56,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:11:56,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:11:56,592 INFO L134 CoverageAnalysis]: Checked inductivity of 7660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7660 trivial. 0 not checked. [2022-11-19 07:11:56,592 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:11:56,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423257706] [2022-11-19 07:11:56,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423257706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:11:56,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:11:56,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:11:56,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127523772] [2022-11-19 07:11:56,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:11:56,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:11:56,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:11:56,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:11:56,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:11:56,597 INFO L87 Difference]: Start difference. First operand 18483 states and 26557 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) [2022-11-19 07:11:59,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:12:02,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:12:03,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:12:03,540 INFO L93 Difference]: Finished difference Result 50316 states and 72175 transitions. [2022-11-19 07:12:03,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:12:03,541 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 [2022-11-19 07:12:03,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:12:03,721 INFO L225 Difference]: With dead ends: 50316 [2022-11-19 07:12:03,722 INFO L226 Difference]: Without dead ends: 31922 [2022-11-19 07:12:03,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:12:03,797 INFO L413 NwaCegarLoop]: 4167 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, 7568 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:12:03,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2965 Valid, 7568 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 818 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-11-19 07:12:03,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31922 states. [2022-11-19 07:12:05,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31922 to 31882. [2022-11-19 07:12:05,838 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) [2022-11-19 07:12:06,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31882 states to 31882 states and 45662 transitions. [2022-11-19 07:12:06,074 INFO L78 Accepts]: Start accepts. Automaton has 31882 states and 45662 transitions. Word has length 484 [2022-11-19 07:12:06,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:12:06,076 INFO L495 AbstractCegarLoop]: Abstraction has 31882 states and 45662 transitions. [2022-11-19 07:12:06,076 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) [2022-11-19 07:12:06,076 INFO L276 IsEmpty]: Start isEmpty. Operand 31882 states and 45662 transitions. [2022-11-19 07:12:06,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2022-11-19 07:12:06,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:12:06,094 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] [2022-11-19 07:12:06,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:12:06,095 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)] === [2022-11-19 07:12:06,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:12:06,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1539324321, now seen corresponding path program 1 times [2022-11-19 07:12:06,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:12:06,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388668129] [2022-11-19 07:12:06,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:12:06,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:12:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:06,792 INFO L134 CoverageAnalysis]: Checked inductivity of 7658 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7658 trivial. 0 not checked. [2022-11-19 07:12:06,793 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:12:06,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388668129] [2022-11-19 07:12:06,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388668129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:12:06,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:12:06,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:12:06,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804846360] [2022-11-19 07:12:06,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:12:06,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:12:06,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:12:06,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:12:06,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:12:06,796 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) [2022-11-19 07:12:09,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:12:13,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:12:15,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:12:15,485 INFO L93 Difference]: Finished difference Result 85722 states and 122568 transitions. [2022-11-19 07:12:15,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:12:15,486 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 [2022-11-19 07:12:15,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:12:15,895 INFO L225 Difference]: With dead ends: 85722 [2022-11-19 07:12:15,895 INFO L226 Difference]: Without dead ends: 53929 [2022-11-19 07:12:16,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:12:16,020 INFO L413 NwaCegarLoop]: 5172 mSDtfsCounter, 3246 mSDsluCounter, 3384 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3250 SdHoareTripleChecker+Valid, 8556 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:12:16,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3250 Valid, 8556 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 948 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-11-19 07:12:16,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53929 states. [2022-11-19 07:12:18,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53929 to 53855. [2022-11-19 07:12:18,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53855 states, 32025 states have (on average 1.2955815768930523) internal successors, (41491), 33065 states have internal predecessors, (41491), 17535 states have call successors, (17535), 4304 states have call predecessors, (17535), 4291 states have return successors, (17765), 17251 states have call predecessors, (17765), 17531 states have call successors, (17765) [2022-11-19 07:12:18,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53855 states to 53855 states and 76791 transitions. [2022-11-19 07:12:18,905 INFO L78 Accepts]: Start accepts. Automaton has 53855 states and 76791 transitions. Word has length 507 [2022-11-19 07:12:18,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:12:18,907 INFO L495 AbstractCegarLoop]: Abstraction has 53855 states and 76791 transitions. [2022-11-19 07:12:18,907 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) [2022-11-19 07:12:18,907 INFO L276 IsEmpty]: Start isEmpty. Operand 53855 states and 76791 transitions. [2022-11-19 07:12:18,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2022-11-19 07:12:18,913 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:12:18,913 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] [2022-11-19 07:12:18,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:12:18,914 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)] === [2022-11-19 07:12:18,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:12:18,915 INFO L85 PathProgramCache]: Analyzing trace with hash 2067384561, now seen corresponding path program 1 times [2022-11-19 07:12:18,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:12:18,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808038722] [2022-11-19 07:12:18,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:12:18,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:12:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:20,770 INFO L134 CoverageAnalysis]: Checked inductivity of 7963 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7963 trivial. 0 not checked. [2022-11-19 07:12:20,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:12:20,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808038722] [2022-11-19 07:12:20,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808038722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:12:20,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:12:20,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:12:20,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104377894] [2022-11-19 07:12:20,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:12:20,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:12:20,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:12:20,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:12:20,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:12:20,774 INFO L87 Difference]: Start difference. First operand 53855 states and 76791 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) [2022-11-19 07:12:23,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:12:27,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:12:29,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:12:29,775 INFO L93 Difference]: Finished difference Result 55123 states and 78536 transitions. [2022-11-19 07:12:29,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:12:29,776 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 [2022-11-19 07:12:29,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:12:30,120 INFO L225 Difference]: With dead ends: 55123 [2022-11-19 07:12:30,120 INFO L226 Difference]: Without dead ends: 55121 [2022-11-19 07:12:30,151 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 [2022-11-19 07:12:30,153 INFO L413 NwaCegarLoop]: 4490 mSDtfsCounter, 3406 mSDsluCounter, 10788 mSDsCounter, 0 mSdLazyCounter, 1621 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3418 SdHoareTripleChecker+Valid, 15278 SdHoareTripleChecker+Invalid, 1624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1621 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:12:30,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3418 Valid, 15278 Invalid, 1624 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1621 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-11-19 07:12:30,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55121 states. [2022-11-19 07:12:32,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55121 to 55114. [2022-11-19 07:12:33,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55114 states, 32740 states have (on average 1.2948686621869272) internal successors, (42394), 33808 states have internal predecessors, (42394), 17950 states have call successors, (17950), 4431 states have call predecessors, (17950), 4420 states have return successors, (18186), 17663 states have call predecessors, (18186), 17946 states have call successors, (18186) [2022-11-19 07:12:33,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55114 states to 55114 states and 78530 transitions. [2022-11-19 07:12:33,636 INFO L78 Accepts]: Start accepts. Automaton has 55114 states and 78530 transitions. Word has length 515 [2022-11-19 07:12:33,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:12:33,638 INFO L495 AbstractCegarLoop]: Abstraction has 55114 states and 78530 transitions. [2022-11-19 07:12:33,638 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) [2022-11-19 07:12:33,638 INFO L276 IsEmpty]: Start isEmpty. Operand 55114 states and 78530 transitions. [2022-11-19 07:12:33,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2022-11-19 07:12:33,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:12:33,649 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] [2022-11-19 07:12:33,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:12:33,650 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)] === [2022-11-19 07:12:33,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:12:33,650 INFO L85 PathProgramCache]: Analyzing trace with hash 142456979, now seen corresponding path program 1 times [2022-11-19 07:12:33,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:12:33,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155261972] [2022-11-19 07:12:33,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:12:33,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:12:33,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:35,405 INFO L134 CoverageAnalysis]: Checked inductivity of 7965 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7963 trivial. 0 not checked. [2022-11-19 07:12:35,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:12:35,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155261972] [2022-11-19 07:12:35,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155261972] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:12:35,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:12:35,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:12:35,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581556463] [2022-11-19 07:12:35,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:12:35,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:12:35,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:12:35,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:12:35,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:12:35,409 INFO L87 Difference]: Start difference. First operand 55114 states and 78530 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) [2022-11-19 07:12:38,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:12:42,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:12:45,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:12:45,823 INFO L93 Difference]: Finished difference Result 97639 states and 138583 transitions. [2022-11-19 07:12:45,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:12:45,827 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 [2022-11-19 07:12:45,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:12:46,533 INFO L225 Difference]: With dead ends: 97639 [2022-11-19 07:12:46,534 INFO L226 Difference]: Without dead ends: 97637 [2022-11-19 07:12:46,573 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 [2022-11-19 07:12:46,574 INFO L413 NwaCegarLoop]: 4499 mSDtfsCounter, 2975 mSDsluCounter, 12046 mSDsCounter, 0 mSdLazyCounter, 1755 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2984 SdHoareTripleChecker+Valid, 16545 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1755 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:12:46,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2984 Valid, 16545 Invalid, 1760 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1755 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-11-19 07:12:46,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97637 states. [2022-11-19 07:12:51,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97637 to 97600. [2022-11-19 07:12:51,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97600 states, 58165 states have (on average 1.2935958050373937) internal successors, (75242), 60165 states have internal predecessors, (75242), 31251 states have call successors, (31251), 8262 states have call predecessors, (31251), 8180 states have return successors, (32054), 30499 states have call predecessors, (32054), 31243 states have call successors, (32054) [2022-11-19 07:12:51,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97600 states to 97600 states and 138547 transitions. [2022-11-19 07:12:51,675 INFO L78 Accepts]: Start accepts. Automaton has 97600 states and 138547 transitions. Word has length 520 [2022-11-19 07:12:51,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:12:51,676 INFO L495 AbstractCegarLoop]: Abstraction has 97600 states and 138547 transitions. [2022-11-19 07:12:51,676 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) [2022-11-19 07:12:51,677 INFO L276 IsEmpty]: Start isEmpty. Operand 97600 states and 138547 transitions. [2022-11-19 07:12:51,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-11-19 07:12:51,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:12:51,686 INFO L195 NwaCegarLoop]: trace histogram [48, 44, 44, 44, 44, 44, 44, 4, 4, 3, 2, 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] [2022-11-19 07:12:51,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 07:12:51,686 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)] === [2022-11-19 07:12:51,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:12:51,687 INFO L85 PathProgramCache]: Analyzing trace with hash 937776625, now seen corresponding path program 1 times [2022-11-19 07:12:51,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:12:51,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539723281] [2022-11-19 07:12:51,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:12:51,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:12:51,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:53,325 INFO L134 CoverageAnalysis]: Checked inductivity of 7971 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7967 trivial. 0 not checked. [2022-11-19 07:12:53,325 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:12:53,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539723281] [2022-11-19 07:12:53,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539723281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:12:53,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:12:53,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:12:53,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782301854] [2022-11-19 07:12:53,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:12:53,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:12:53,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:12:53,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:12:53,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:12:53,329 INFO L87 Difference]: Start difference. First operand 97600 states and 138547 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, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-19 07:12:55,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:13:00,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:13:03,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:13:03,543 INFO L93 Difference]: Finished difference Result 97617 states and 138560 transitions. [2022-11-19 07:13:03,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:13:03,544 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, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 525 [2022-11-19 07:13:03,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:13:03,973 INFO L225 Difference]: With dead ends: 97617 [2022-11-19 07:13:03,973 INFO L226 Difference]: Without dead ends: 97615 [2022-11-19 07:13:04,010 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 [2022-11-19 07:13:04,011 INFO L413 NwaCegarLoop]: 4374 mSDtfsCounter, 3401 mSDsluCounter, 10550 mSDsCounter, 0 mSdLazyCounter, 1588 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3411 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, 6.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:13:04,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3411 Valid, 14924 Invalid, 1591 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1588 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-11-19 07:13:04,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97615 states.