./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_2c06d6ca-198f-4e20-8168-d66f2312d5d5/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c06d6ca-198f-4e20-8168-d66f2312d5d5/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c06d6ca-198f-4e20-8168-d66f2312d5d5/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c06d6ca-198f-4e20-8168-d66f2312d5d5/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c06d6ca-198f-4e20-8168-d66f2312d5d5/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c06d6ca-198f-4e20-8168-d66f2312d5d5/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 08c4ab5181b7abd6700c38bd6f4a3ecc0debf94ce89805012c81d15880051c78 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 01:47:13,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:47:13,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:47:13,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:47:13,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:47:13,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:47:13,212 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:47:13,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:47:13,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:47:13,223 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:47:13,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:47:13,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:47:13,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:47:13,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:47:13,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:47:13,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:47:13,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:47:13,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:47:13,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:47:13,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:47:13,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:47:13,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:47:13,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:47:13,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:47:13,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:47:13,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:47:13,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:47:13,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:47:13,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:47:13,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:47:13,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:47:13,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:47:13,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:47:13,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:47:13,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:47:13,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:47:13,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:47:13,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:47:13,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:47:13,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:47:13,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:47:13,273 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c06d6ca-198f-4e20-8168-d66f2312d5d5/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 01:47:13,313 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:47:13,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:47:13,314 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:47:13,314 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:47:13,315 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:47:13,316 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:47:13,316 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:47:13,316 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:47:13,316 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:47:13,317 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:47:13,318 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:47:13,318 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:47:13,318 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:47:13,318 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:47:13,319 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:47:13,319 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:47:13,319 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:47:13,319 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:47:13,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:47:13,320 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:47:13,320 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:47:13,321 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:47:13,321 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:47:13,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:47:13,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:47:13,323 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:47:13,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:47:13,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:47:13,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:47:13,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:47:13,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:47:13,324 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:47:13,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:47:13,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:47:13,325 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:47:13,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:47:13,325 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:47:13,326 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:47:13,326 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_2c06d6ca-198f-4e20-8168-d66f2312d5d5/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c06d6ca-198f-4e20-8168-d66f2312d5d5/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08c4ab5181b7abd6700c38bd6f4a3ecc0debf94ce89805012c81d15880051c78 [2022-11-03 01:47:13,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:47:13,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:47:13,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:47:13,637 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:47:13,638 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:47:13,639 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c06d6ca-198f-4e20-8168-d66f2312d5d5/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2022-11-03 01:47:13,703 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c06d6ca-198f-4e20-8168-d66f2312d5d5/bin/utaipan-7li7fVZpFI/data/99bb6fe84/da1d486f03b7430eb9ea52d24d30c498/FLAG7daa3d664 [2022-11-03 01:47:14,792 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:47:14,793 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c06d6ca-198f-4e20-8168-d66f2312d5d5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2022-11-03 01:47:14,859 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c06d6ca-198f-4e20-8168-d66f2312d5d5/bin/utaipan-7li7fVZpFI/data/99bb6fe84/da1d486f03b7430eb9ea52d24d30c498/FLAG7daa3d664 [2022-11-03 01:47:15,098 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c06d6ca-198f-4e20-8168-d66f2312d5d5/bin/utaipan-7li7fVZpFI/data/99bb6fe84/da1d486f03b7430eb9ea52d24d30c498 [2022-11-03 01:47:15,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:47:15,103 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:47:15,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:47:15,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:47:15,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:47:15,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:47:15" (1/1) ... [2022-11-03 01:47:15,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b0a9e5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:15, skipping insertion in model container [2022-11-03 01:47:15,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:47:15" (1/1) ... [2022-11-03 01:47:15,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:47:15,380 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:47:20,000 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c06d6ca-198f-4e20-8168-d66f2312d5d5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445714,445727] [2022-11-03 01:47:20,004 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c06d6ca-198f-4e20-8168-d66f2312d5d5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445883,445896] [2022-11-03 01:47:20,004 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c06d6ca-198f-4e20-8168-d66f2312d5d5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446050,446063] [2022-11-03 01:47:20,005 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c06d6ca-198f-4e20-8168-d66f2312d5d5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446218,446231] [2022-11-03 01:47:20,037 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:47:20,130 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:47:20,714 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c06d6ca-198f-4e20-8168-d66f2312d5d5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445714,445727] [2022-11-03 01:47:20,715 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c06d6ca-198f-4e20-8168-d66f2312d5d5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445883,445896] [2022-11-03 01:47:20,715 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c06d6ca-198f-4e20-8168-d66f2312d5d5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446050,446063] [2022-11-03 01:47:20,715 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c06d6ca-198f-4e20-8168-d66f2312d5d5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446218,446231] [2022-11-03 01:47:20,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:47:21,125 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:47:21,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:21 WrapperNode [2022-11-03 01:47:21,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:47:21,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:47:21,127 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:47:21,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:47:21,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:21" (1/1) ... [2022-11-03 01:47:21,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:21" (1/1) ... [2022-11-03 01:47:21,686 INFO L138 Inliner]: procedures = 663, calls = 4677, calls flagged for inlining = 358, calls inlined = 345, statements flattened = 10344 [2022-11-03 01:47:21,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:47:21,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:47:21,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:47:21,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:47:21,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:21" (1/1) ... [2022-11-03 01:47:21,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:21" (1/1) ... [2022-11-03 01:47:21,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:21" (1/1) ... [2022-11-03 01:47:21,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:21" (1/1) ... [2022-11-03 01:47:22,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:21" (1/1) ... [2022-11-03 01:47:22,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:21" (1/1) ... [2022-11-03 01:47:22,184 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:21" (1/1) ... [2022-11-03 01:47:22,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:21" (1/1) ... [2022-11-03 01:47:22,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:47:22,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:47:22,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:47:22,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:47:22,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:21" (1/1) ... [2022-11-03 01:47:22,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:47:22,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c06d6ca-198f-4e20-8168-d66f2312d5d5/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:47:22,329 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c06d6ca-198f-4e20-8168-d66f2312d5d5/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:47:22,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c06d6ca-198f-4e20-8168-d66f2312d5d5/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:47:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 01:47:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 01:47:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-03 01:47:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-03 01:47:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure hw_del_addr [2022-11-03 01:47:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_del_addr [2022-11-03 01:47:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 01:47:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 01:47:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure hw_cfg_wol [2022-11-03 01:47:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_cfg_wol [2022-11-03 01:47:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 01:47:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 01:47:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-03 01:47:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-03 01:47:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_init [2022-11-03 01:47:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_init [2022-11-03 01:47:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ack_intr [2022-11-03 01:47:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ack_intr [2022-11-03 01:47:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_tx_timeout [2022-11-03 01:47:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_tx_timeout [2022-11-03 01:47:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure bridge_change [2022-11-03 01:47:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure bridge_change [2022-11-03 01:47:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 01:47:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 01:47:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure set_flow_ctrl [2022-11-03 01:47:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure set_flow_ctrl [2022-11-03 01:47:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 01:47:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 01:47:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pci_device_driver_exit_14_2 [2022-11-03 01:47:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pci_device_driver_exit_14_2 [2022-11-03 01:47:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-03 01:47:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-03 01:47:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure set_tx_len [2022-11-03 01:47:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure set_tx_len [2022-11-03 01:47:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_check_desc_num [2022-11-03 01:47:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_check_desc_num [2022-11-03 01:47:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 01:47:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 01:47:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 01:47:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 01:47:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 01:47:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 01:47:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-03 01:47:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-03 01:47:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure set_media_state [2022-11-03 01:47:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure set_media_state [2022-11-03 01:47:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 01:47:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 01:47:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 01:47:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 01:47:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-03 01:47:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-03 01:47:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ena_intr [2022-11-03 01:47:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ena_intr [2022-11-03 01:47:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:47:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-03 01:47:22,387 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-03 01:47:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-03 01:47:22,387 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-03 01:47:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-11-03 01:47:22,387 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-11-03 01:47:22,388 INFO L130 BoogieDeclarations]: Found specification of procedure port_cfg [2022-11-03 01:47:22,388 INFO L138 BoogieDeclarations]: Found implementation of procedure port_cfg [2022-11-03 01:47:22,388 INFO L130 BoogieDeclarations]: Found specification of procedure state_gpio [2022-11-03 01:47:22,388 INFO L138 BoogieDeclarations]: Found implementation of procedure state_gpio [2022-11-03 01:47:22,388 INFO L130 BoogieDeclarations]: Found specification of procedure hw_dis_intr [2022-11-03 01:47:22,388 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_dis_intr [2022-11-03 01:47:22,388 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_read [2022-11-03 01:47:22,389 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_read [2022-11-03 01:47:22,389 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 01:47:22,390 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 01:47:22,390 INFO L130 BoogieDeclarations]: Found specification of procedure pcidev_resume [2022-11-03 01:47:22,390 INFO L138 BoogieDeclarations]: Found implementation of procedure pcidev_resume [2022-11-03 01:47:22,390 INFO L130 BoogieDeclarations]: Found specification of procedure hw_dis_intr_bit [2022-11-03 01:47:22,390 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_dis_intr_bit [2022-11-03 01:47:22,390 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_eeprom_len [2022-11-03 01:47:22,391 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_eeprom_len [2022-11-03 01:47:22,391 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_free_buffers [2022-11-03 01:47:22,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_free_buffers [2022-11-03 01:47:22,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 01:47:22,392 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_clk [2022-11-03 01:47:22,392 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_clk [2022-11-03 01:47:22,393 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 01:47:22,393 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 01:47:22,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 01:47:22,393 INFO L130 BoogieDeclarations]: Found specification of procedure hw_reset [2022-11-03 01:47:22,394 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_reset [2022-11-03 01:47:22,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 01:47:22,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 01:47:22,394 INFO L130 BoogieDeclarations]: Found specification of procedure rx_proc [2022-11-03 01:47:22,394 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_proc [2022-11-03 01:47:22,395 INFO L130 BoogieDeclarations]: Found specification of procedure release_desc [2022-11-03 01:47:22,395 INFO L138 BoogieDeclarations]: Found implementation of procedure release_desc [2022-11-03 01:47:22,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:47:22,395 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 01:47:22,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 01:47:22,395 INFO L130 BoogieDeclarations]: Found specification of procedure hw_resume_rx [2022-11-03 01:47:22,396 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_resume_rx [2022-11-03 01:47:22,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 01:47:22,396 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 01:47:22,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 01:47:22,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 01:47:22,397 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_netpoll [2022-11-03 01:47:22,397 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_netpoll [2022-11-03 01:47:22,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 01:47:22,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 01:47:22,401 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-11-03 01:47:22,402 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-11-03 01:47:22,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 01:47:22,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 01:47:22,403 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ena_add_addr [2022-11-03 01:47:22,403 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ena_add_addr [2022-11-03 01:47:22,403 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-03 01:47:22,404 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-03 01:47:22,409 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_grp_addr [2022-11-03 01:47:22,409 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_grp_addr [2022-11-03 01:47:22,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-03 01:47:22,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-03 01:47:22,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 01:47:22,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 01:47:22,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 01:47:22,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 01:47:22,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 01:47:22,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:47:22,411 INFO L130 BoogieDeclarations]: Found specification of procedure sw_w_sta_mac_table [2022-11-03 01:47:22,411 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_w_sta_mac_table [2022-11-03 01:47:22,411 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2022-11-03 01:47:22,411 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2022-11-03 01:47:22,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 01:47:22,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 01:47:22,412 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 01:47:22,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 01:47:22,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 01:47:22,412 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 01:47:22,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 01:47:22,412 INFO L130 BoogieDeclarations]: Found specification of procedure hw_stop_rx [2022-11-03 01:47:22,412 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_stop_rx [2022-11-03 01:47:22,412 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_intr [2022-11-03 01:47:22,413 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_intr [2022-11-03 01:47:22,413 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:47:22,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:47:22,413 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-03 01:47:22,413 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-03 01:47:22,413 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_init_rx_buffers [2022-11-03 01:47:22,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_init_rx_buffers [2022-11-03 01:47:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_free_mem [2022-11-03 01:47:22,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_free_mem [2022-11-03 01:47:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 01:47:22,414 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 01:47:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure hw_w_phy [2022-11-03 01:47:22,414 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_w_phy [2022-11-03 01:47:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-03 01:47:22,414 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-03 01:47:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-03 01:47:22,415 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-03 01:47:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-03 01:47:22,415 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-03 01:47:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_set_rx_mode [2022-11-03 01:47:22,415 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_set_rx_mode [2022-11-03 01:47:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-03 01:47:22,415 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-03 01:47:22,416 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-03 01:47:22,416 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-03 01:47:22,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:47:22,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:47:22,416 INFO L130 BoogieDeclarations]: Found specification of procedure transmit_cleanup [2022-11-03 01:47:22,416 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit_cleanup [2022-11-03 01:47:22,416 INFO L130 BoogieDeclarations]: Found specification of procedure hw_r_phy [2022-11-03 01:47:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_r_phy [2022-11-03 01:47:22,417 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_addr [2022-11-03 01:47:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_addr [2022-11-03 01:47:22,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 01:47:22,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 01:47:22,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 01:47:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 01:47:22,417 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_pkt [2022-11-03 01:47:22,418 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_pkt [2022-11-03 01:47:22,418 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2022-11-03 01:47:22,419 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2022-11-03 01:47:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure port_get_link_speed [2022-11-03 01:47:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure port_get_link_speed [2022-11-03 01:47:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 01:47:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 01:47:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure port_r16 [2022-11-03 01:47:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r16 [2022-11-03 01:47:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_hwlock_of_dev_info [2022-11-03 01:47:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_hwlock_of_dev_info [2022-11-03 01:47:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg_port_base_vlan [2022-11-03 01:47:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg_port_base_vlan [2022-11-03 01:47:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure drop_gpio [2022-11-03 01:47:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_gpio [2022-11-03 01:47:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 01:47:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 01:47:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_desc_base [2022-11-03 01:47:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_desc_base [2022-11-03 01:47:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 01:47:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 01:47:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure hw_block_intr [2022-11-03 01:47:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_block_intr [2022-11-03 01:47:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-03 01:47:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-03 01:47:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2022-11-03 01:47:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2022-11-03 01:47:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_network_header [2022-11-03 01:47:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_network_header [2022-11-03 01:47:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_init_timer [2022-11-03 01:47:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_init_timer [2022-11-03 01:47:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure hw_reset_pkts [2022-11-03 01:47:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_reset_pkts [2022-11-03 01:47:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 01:47:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 01:47:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure hw_disable [2022-11-03 01:47:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_disable [2022-11-03 01:47:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 01:47:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 01:47:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-11-03 01:47:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-11-03 01:47:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure get_mac_addr [2022-11-03 01:47:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure get_mac_addr [2022-11-03 01:47:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure hw_restore_intr [2022-11-03 01:47:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_restore_intr [2022-11-03 01:47:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 01:47:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 01:47:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:47:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 01:47:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 01:47:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 01:47:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 01:47:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure hw_start_rx [2022-11-03 01:47:22,426 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_start_rx [2022-11-03 01:47:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:47:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure port_cfg_broad_storm [2022-11-03 01:47:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure port_cfg_broad_storm [2022-11-03 01:47:22,431 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-03 01:47:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-03 01:47:22,431 INFO L130 BoogieDeclarations]: Found specification of procedure hw_turn_on_intr [2022-11-03 01:47:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_turn_on_intr [2022-11-03 01:47:22,431 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-03 01:47:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-03 01:47:22,431 INFO L130 BoogieDeclarations]: Found specification of procedure sw_chk [2022-11-03 01:47:22,432 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_chk [2022-11-03 01:47:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 01:47:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_wol_frame [2022-11-03 01:47:22,433 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_wol_frame [2022-11-03 01:47:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 01:47:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 01:47:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 01:47:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 01:47:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 01:47:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 01:47:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 01:47:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 01:47:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 01:47:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 01:47:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure port_r_mib_pkt [2022-11-03 01:47:22,435 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r_mib_pkt [2022-11-03 01:47:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 01:47:22,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 01:47:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_63 [2022-11-03 01:47:22,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_63 [2022-11-03 01:47:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg [2022-11-03 01:47:22,435 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg [2022-11-03 01:47:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2022-11-03 01:47:22,436 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2022-11-03 01:47:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_hwlock_of_dev_info [2022-11-03 01:47:22,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_hwlock_of_dev_info [2022-11-03 01:47:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_update_timer [2022-11-03 01:47:22,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_update_timer [2022-11-03 01:47:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 01:47:22,436 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 01:47:22,437 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_free [2022-11-03 01:47:22,437 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_free [2022-11-03 01:47:22,437 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_stop_timer [2022-11-03 01:47:22,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_stop_timer [2022-11-03 01:47:22,437 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 01:47:22,437 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 01:47:22,437 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_intr [2022-11-03 01:47:22,437 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_intr [2022-11-03 01:47:22,437 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-03 01:47:22,438 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-03 01:47:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure hw_add_addr [2022-11-03 01:47:22,438 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_add_addr [2022-11-03 01:47:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure port_r_mib_cnt [2022-11-03 01:47:22,438 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r_mib_cnt [2022-11-03 01:47:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_buf [2022-11-03 01:47:22,438 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_buf [2022-11-03 01:47:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-03 01:47:22,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-03 01:47:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 01:47:22,439 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 01:47:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_72 [2022-11-03 01:47:22,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_72 [2022-11-03 01:47:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 01:47:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_multicast [2022-11-03 01:47:22,439 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_multicast [2022-11-03 01:47:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 01:47:22,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 01:47:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_regs_len [2022-11-03 01:47:22,440 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_regs_len [2022-11-03 01:47:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure hw_clr_multicast [2022-11-03 01:47:22,440 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_clr_multicast [2022-11-03 01:47:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_link_speed [2022-11-03 01:47:22,440 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_link_speed [2022-11-03 01:47:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure raise_gpio [2022-11-03 01:47:22,440 INFO L138 BoogieDeclarations]: Found implementation of procedure raise_gpio [2022-11-03 01:47:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure port_w16 [2022-11-03 01:47:22,441 INFO L138 BoogieDeclarations]: Found implementation of procedure port_w16 [2022-11-03 01:47:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure empty_addr [2022-11-03 01:47:22,441 INFO L138 BoogieDeclarations]: Found implementation of procedure empty_addr [2022-11-03 01:47:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 01:47:22,441 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 01:47:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure mib_read_work [2022-11-03 01:47:22,441 INFO L138 BoogieDeclarations]: Found implementation of procedure mib_read_work [2022-11-03 01:47:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure hw_enable_wol [2022-11-03 01:47:22,442 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_enable_wol [2022-11-03 01:47:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_stp_state [2022-11-03 01:47:22,442 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_stp_state [2022-11-03 01:47:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure hw_clr_wol_pme_status [2022-11-03 01:47:22,442 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_clr_wol_pme_status [2022-11-03 01:47:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_64 [2022-11-03 01:47:22,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_64 [2022-11-03 01:47:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_start_timer [2022-11-03 01:47:22,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_start_timer [2022-11-03 01:47:22,443 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-03 01:47:22,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-03 01:47:22,443 INFO L130 BoogieDeclarations]: Found specification of procedure copy_old_skb [2022-11-03 01:47:22,443 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_old_skb [2022-11-03 01:47:22,443 INFO L130 BoogieDeclarations]: Found specification of procedure hw_cfg_wol_pme [2022-11-03 01:47:22,443 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_cfg_wol_pme [2022-11-03 01:47:22,443 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_buf [2022-11-03 01:47:22,444 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_buf [2022-11-03 01:47:22,444 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_network_header [2022-11-03 01:47:22,444 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_network_header [2022-11-03 01:47:22,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 01:47:22,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 01:47:22,444 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-03 01:47:22,444 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-03 01:47:22,444 INFO L130 BoogieDeclarations]: Found specification of procedure pcidev_exit [2022-11-03 01:47:22,444 INFO L138 BoogieDeclarations]: Found implementation of procedure pcidev_exit [2022-11-03 01:47:22,445 INFO L130 BoogieDeclarations]: Found specification of procedure hw_enable [2022-11-03 01:47:22,445 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_enable [2022-11-03 01:47:22,445 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_alloc_soft_desc [2022-11-03 01:47:22,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_alloc_soft_desc [2022-11-03 01:47:22,445 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-03 01:47:22,507 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-03 01:47:22,508 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-03 01:47:22,508 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-03 01:47:22,508 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg_broad_storm [2022-11-03 01:47:22,508 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg_broad_storm [2022-11-03 01:47:22,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:47:22,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 01:47:22,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 01:47:22,508 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_power_saving [2022-11-03 01:47:22,508 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_power_saving [2022-11-03 01:47:22,508 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-03 01:47:22,508 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-03 01:47:22,509 INFO L130 BoogieDeclarations]: Found specification of procedure spi_reg [2022-11-03 01:47:22,509 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_reg [2022-11-03 01:47:23,878 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:47:23,882 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:47:28,165 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 01:47:44,993 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 01:47:45,159 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:47:48,024 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:47:48,024 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-03 01:47:48,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:47:48 BoogieIcfgContainer [2022-11-03 01:47:48,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:47:48,036 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:47:48,036 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:47:48,039 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:47:48,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:47:15" (1/3) ... [2022-11-03 01:47:48,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc9482b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:47:48, skipping insertion in model container [2022-11-03 01:47:48,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:21" (2/3) ... [2022-11-03 01:47:48,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc9482b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:47:48, skipping insertion in model container [2022-11-03 01:47:48,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:47:48" (3/3) ... [2022-11-03 01:47:48,043 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2022-11-03 01:47:48,063 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:47:48,063 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-03 01:47:48,172 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:47:48,180 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;@e9db36f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:47:48,180 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-03 01:47:48,193 INFO L276 IsEmpty]: Start isEmpty. Operand has 2327 states, 1391 states have (on average 1.3156002875629045) internal successors, (1830), 1458 states have internal predecessors, (1830), 767 states have call successors, (767), 171 states have call predecessors, (767), 170 states have return successors, (761), 748 states have call predecessors, (761), 761 states have call successors, (761) [2022-11-03 01:47:48,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-11-03 01:47:48,228 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:47:48,230 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:47:48,230 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 01:47:48,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:47:48,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1215926308, now seen corresponding path program 1 times [2022-11-03 01:47:48,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:47:48,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446666070] [2022-11-03 01:47:48,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:47:48,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:47:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:47:49,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-03 01:47:49,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:47:49,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446666070] [2022-11-03 01:47:49,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446666070] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:47:49,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:47:49,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:47:49,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889227480] [2022-11-03 01:47:49,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:47:49,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:47:49,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:47:49,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:47:49,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:47:49,348 INFO L87 Difference]: Start difference. First operand has 2327 states, 1391 states have (on average 1.3156002875629045) internal successors, (1830), 1458 states have internal predecessors, (1830), 767 states have call successors, (767), 171 states have call predecessors, (767), 170 states have return successors, (761), 748 states have call predecessors, (761), 761 states have call successors, (761) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-03 01:47:52,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:48:01,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:48:01,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:48:01,804 INFO L93 Difference]: Finished difference Result 6805 states and 9901 transitions. [2022-11-03 01:48:01,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:48:01,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 211 [2022-11-03 01:48:01,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:48:01,870 INFO L225 Difference]: With dead ends: 6805 [2022-11-03 01:48:01,870 INFO L226 Difference]: Without dead ends: 4507 [2022-11-03 01:48:01,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:48:01,896 INFO L413 NwaCegarLoop]: 3516 mSDtfsCounter, 3186 mSDsluCounter, 3282 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3189 SdHoareTripleChecker+Valid, 6286 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-11-03 01:48:01,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3189 Valid, 6286 Invalid, 1071 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1062 Invalid, 2 Unknown, 0 Unchecked, 11.9s Time] [2022-11-03 01:48:01,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4507 states. [2022-11-03 01:48:02,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4507 to 4503. [2022-11-03 01:48:02,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4503 states, 2701 states have (on average 1.3135875601629026) internal successors, (3548), 2830 states have internal predecessors, (3548), 1463 states have call successors, (1463), 337 states have call predecessors, (1463), 336 states have return successors, (1462), 1433 states have call predecessors, (1462), 1459 states have call successors, (1462) [2022-11-03 01:48:02,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4503 states to 4503 states and 6473 transitions. [2022-11-03 01:48:02,274 INFO L78 Accepts]: Start accepts. Automaton has 4503 states and 6473 transitions. Word has length 211 [2022-11-03 01:48:02,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:48:02,279 INFO L495 AbstractCegarLoop]: Abstraction has 4503 states and 6473 transitions. [2022-11-03 01:48:02,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-03 01:48:02,280 INFO L276 IsEmpty]: Start isEmpty. Operand 4503 states and 6473 transitions. [2022-11-03 01:48:02,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-03 01:48:02,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:48:02,297 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:48:02,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:48:02,298 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 01:48:02,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:48:02,299 INFO L85 PathProgramCache]: Analyzing trace with hash 470174386, now seen corresponding path program 1 times [2022-11-03 01:48:02,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:48:02,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644107113] [2022-11-03 01:48:02,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:02,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:48:02,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:03,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-03 01:48:03,005 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:48:03,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644107113] [2022-11-03 01:48:03,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644107113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:48:03,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:48:03,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:48:03,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880854959] [2022-11-03 01:48:03,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:48:03,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:48:03,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:48:03,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:48:03,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:48:03,010 INFO L87 Difference]: Start difference. First operand 4503 states and 6473 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-03 01:48:06,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:48:11,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:48:15,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:48:16,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:48:16,909 INFO L93 Difference]: Finished difference Result 13393 states and 19277 transitions. [2022-11-03 01:48:16,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:48:16,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 215 [2022-11-03 01:48:16,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:48:16,977 INFO L225 Difference]: With dead ends: 13393 [2022-11-03 01:48:16,978 INFO L226 Difference]: Without dead ends: 8929 [2022-11-03 01:48:17,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:48:17,001 INFO L413 NwaCegarLoop]: 3568 mSDtfsCounter, 3232 mSDsluCounter, 3288 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3235 SdHoareTripleChecker+Valid, 6343 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:48:17,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3235 Valid, 6343 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1060 Invalid, 2 Unknown, 0 Unchecked, 13.4s Time] [2022-11-03 01:48:17,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8929 states. [2022-11-03 01:48:17,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8929 to 8900. [2022-11-03 01:48:17,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8900 states, 5354 states have (on average 1.3143444153903623) internal successors, (7037), 5614 states have internal predecessors, (7037), 2872 states have call successors, (2872), 672 states have call predecessors, (2872), 671 states have return successors, (2910), 2809 states have call predecessors, (2910), 2868 states have call successors, (2910) [2022-11-03 01:48:17,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8900 states to 8900 states and 12819 transitions. [2022-11-03 01:48:17,648 INFO L78 Accepts]: Start accepts. Automaton has 8900 states and 12819 transitions. Word has length 215 [2022-11-03 01:48:17,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:48:17,650 INFO L495 AbstractCegarLoop]: Abstraction has 8900 states and 12819 transitions. [2022-11-03 01:48:17,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-03 01:48:17,654 INFO L276 IsEmpty]: Start isEmpty. Operand 8900 states and 12819 transitions. [2022-11-03 01:48:17,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-11-03 01:48:17,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:48:17,666 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:48:17,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:48:17,666 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 01:48:17,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:48:17,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1752734352, now seen corresponding path program 1 times [2022-11-03 01:48:17,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:48:17,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36076716] [2022-11-03 01:48:17,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:17,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:48:17,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:18,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-03 01:48:18,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:48:18,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36076716] [2022-11-03 01:48:18,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36076716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:48:18,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:48:18,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:48:18,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318556012] [2022-11-03 01:48:18,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:48:18,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:48:18,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:48:18,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:48:18,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:48:18,229 INFO L87 Difference]: Start difference. First operand 8900 states and 12819 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-03 01:48:23,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:48:30,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:48:31,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:48:31,208 INFO L93 Difference]: Finished difference Result 26354 states and 37981 transitions. [2022-11-03 01:48:31,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:48:31,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 226 [2022-11-03 01:48:31,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:48:31,334 INFO L225 Difference]: With dead ends: 26354 [2022-11-03 01:48:31,335 INFO L226 Difference]: Without dead ends: 17493 [2022-11-03 01:48:31,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:48:31,389 INFO L413 NwaCegarLoop]: 3627 mSDtfsCounter, 3142 mSDsluCounter, 3300 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3147 SdHoareTripleChecker+Valid, 6411 SdHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:48:31,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3147 Valid, 6411 Invalid, 1073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1068 Invalid, 2 Unknown, 0 Unchecked, 12.1s Time] [2022-11-03 01:48:31,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17493 states. [2022-11-03 01:48:32,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17493 to 17442. [2022-11-03 01:48:32,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17442 states, 10498 states have (on average 1.3136787959611353) internal successors, (13791), 11000 states have internal predecessors, (13791), 5612 states have call successors, (5612), 1330 states have call predecessors, (5612), 1329 states have return successors, (5754), 5483 states have call predecessors, (5754), 5608 states have call successors, (5754) [2022-11-03 01:48:32,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17442 states to 17442 states and 25157 transitions. [2022-11-03 01:48:32,496 INFO L78 Accepts]: Start accepts. Automaton has 17442 states and 25157 transitions. Word has length 226 [2022-11-03 01:48:32,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:48:32,498 INFO L495 AbstractCegarLoop]: Abstraction has 17442 states and 25157 transitions. [2022-11-03 01:48:32,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-03 01:48:32,498 INFO L276 IsEmpty]: Start isEmpty. Operand 17442 states and 25157 transitions. [2022-11-03 01:48:32,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-11-03 01:48:32,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:48:32,506 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 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] [2022-11-03 01:48:32,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:48:32,507 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 01:48:32,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:48:32,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1954610263, now seen corresponding path program 1 times [2022-11-03 01:48:32,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:48:32,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800331682] [2022-11-03 01:48:32,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:32,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:48:32,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:33,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1408 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1408 trivial. 0 not checked. [2022-11-03 01:48:33,792 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:48:33,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800331682] [2022-11-03 01:48:33,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800331682] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:48:33,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:48:33,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:48:33,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888937816] [2022-11-03 01:48:33,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:48:33,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:48:33,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:48:33,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:48:33,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:48:33,794 INFO L87 Difference]: Start difference. First operand 17442 states and 25157 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-03 01:48:37,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:48:57,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:48:58,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:48:58,877 INFO L93 Difference]: Finished difference Result 45430 states and 65073 transitions. [2022-11-03 01:48:58,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 01:48:58,878 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 237 [2022-11-03 01:48:58,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:48:59,024 INFO L225 Difference]: With dead ends: 45430 [2022-11-03 01:48:59,024 INFO L226 Difference]: Without dead ends: 28027 [2022-11-03 01:48:59,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:48:59,095 INFO L413 NwaCegarLoop]: 4044 mSDtfsCounter, 7616 mSDsluCounter, 7945 mSDsCounter, 0 mSdLazyCounter, 4810 mSolverCounterSat, 1154 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7833 SdHoareTripleChecker+Valid, 10375 SdHoareTripleChecker+Invalid, 5966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1154 IncrementalHoareTripleChecker+Valid, 4810 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2022-11-03 01:48:59,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7833 Valid, 10375 Invalid, 5966 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1154 Valid, 4810 Invalid, 2 Unknown, 0 Unchecked, 23.7s Time] [2022-11-03 01:48:59,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28027 states. [2022-11-03 01:49:00,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28027 to 27957. [2022-11-03 01:49:00,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27957 states, 16745 states have (on average 1.3086891609435651) internal successors, (21914), 17562 states have internal predecessors, (21914), 8848 states have call successors, (8848), 2360 states have call predecessors, (8848), 2361 states have return successors, (8998), 8660 states have call predecessors, (8998), 8844 states have call successors, (8998) [2022-11-03 01:49:00,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27957 states to 27957 states and 39760 transitions. [2022-11-03 01:49:00,860 INFO L78 Accepts]: Start accepts. Automaton has 27957 states and 39760 transitions. Word has length 237 [2022-11-03 01:49:00,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:49:00,865 INFO L495 AbstractCegarLoop]: Abstraction has 27957 states and 39760 transitions. [2022-11-03 01:49:00,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-03 01:49:00,865 INFO L276 IsEmpty]: Start isEmpty. Operand 27957 states and 39760 transitions. [2022-11-03 01:49:00,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-11-03 01:49:00,871 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:49:00,871 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:49:00,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 01:49:00,872 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 01:49:00,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:49:00,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1595577671, now seen corresponding path program 1 times [2022-11-03 01:49:00,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:49:00,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144371524] [2022-11-03 01:49:00,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:49:00,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:49:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:49:01,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-03 01:49:01,244 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:49:01,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144371524] [2022-11-03 01:49:01,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144371524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:49:01,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:49:01,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:49:01,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112372316] [2022-11-03 01:49:01,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:49:01,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:49:01,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:49:01,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:49:01,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:49:01,248 INFO L87 Difference]: Start difference. First operand 27957 states and 39760 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-03 01:49:03,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:49:11,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:49:13,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:49:15,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:49:16,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:49:16,042 INFO L93 Difference]: Finished difference Result 65905 states and 92684 transitions. [2022-11-03 01:49:16,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:49:16,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 237 [2022-11-03 01:49:16,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:49:16,261 INFO L225 Difference]: With dead ends: 65905 [2022-11-03 01:49:16,261 INFO L226 Difference]: Without dead ends: 37987 [2022-11-03 01:49:16,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:49:16,370 INFO L413 NwaCegarLoop]: 3375 mSDtfsCounter, 2495 mSDsluCounter, 3200 mSDsCounter, 0 mSdLazyCounter, 1105 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2498 SdHoareTripleChecker+Valid, 6109 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1105 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:49:16,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2498 Valid, 6109 Invalid, 1115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1105 Invalid, 3 Unknown, 0 Unchecked, 13.3s Time] [2022-11-03 01:49:16,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37987 states. [2022-11-03 01:49:18,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37987 to 37950. [2022-11-03 01:49:18,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37950 states, 22693 states have (on average 1.2874014013131803) internal successors, (29215), 23818 states have internal predecessors, (29215), 11674 states have call successors, (11674), 3581 states have call predecessors, (11674), 3580 states have return successors, (11968), 11364 states have call predecessors, (11968), 11670 states have call successors, (11968) [2022-11-03 01:49:18,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37950 states to 37950 states and 52857 transitions. [2022-11-03 01:49:18,498 INFO L78 Accepts]: Start accepts. Automaton has 37950 states and 52857 transitions. Word has length 237 [2022-11-03 01:49:18,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:49:18,498 INFO L495 AbstractCegarLoop]: Abstraction has 37950 states and 52857 transitions. [2022-11-03 01:49:18,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-03 01:49:18,499 INFO L276 IsEmpty]: Start isEmpty. Operand 37950 states and 52857 transitions. [2022-11-03 01:49:18,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-11-03 01:49:18,503 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:49:18,504 INFO L195 NwaCegarLoop]: trace histogram [21, 19, 19, 19, 19, 19, 19, 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] [2022-11-03 01:49:18,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 01:49:18,504 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 01:49:18,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:49:18,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1296675299, now seen corresponding path program 1 times [2022-11-03 01:49:18,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:49:18,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476367227] [2022-11-03 01:49:18,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:49:18,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:49:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:49:19,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1453 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1446 trivial. 0 not checked. [2022-11-03 01:49:19,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:49:19,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476367227] [2022-11-03 01:49:19,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476367227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:49:19,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:49:19,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:49:19,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151299109] [2022-11-03 01:49:19,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:49:19,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:49:19,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:49:19,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:49:19,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:49:19,122 INFO L87 Difference]: Start difference. First operand 37950 states and 52857 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-03 01:49:23,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:49:29,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:49:34,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:49:34,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:49:34,615 INFO L93 Difference]: Finished difference Result 108270 states and 151273 transitions. [2022-11-03 01:49:34,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:49:34,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 244 [2022-11-03 01:49:34,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:49:34,991 INFO L225 Difference]: With dead ends: 108270 [2022-11-03 01:49:34,991 INFO L226 Difference]: Without dead ends: 70359 [2022-11-03 01:49:35,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:49:35,131 INFO L413 NwaCegarLoop]: 3705 mSDtfsCounter, 3223 mSDsluCounter, 3298 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3229 SdHoareTripleChecker+Valid, 6489 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:49:35,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3229 Valid, 6489 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1069 Invalid, 2 Unknown, 0 Unchecked, 13.0s Time] [2022-11-03 01:49:35,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70359 states. [2022-11-03 01:49:38,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70359 to 70282. [2022-11-03 01:49:38,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70282 states, 41973 states have (on average 1.2907106949705762) internal successors, (54175), 44117 states have internal predecessors, (54175), 21805 states have call successors, (21805), 6510 states have call predecessors, (21805), 6501 states have return successors, (22359), 21168 states have call predecessors, (22359), 21801 states have call successors, (22359) [2022-11-03 01:49:39,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70282 states to 70282 states and 98339 transitions. [2022-11-03 01:49:39,351 INFO L78 Accepts]: Start accepts. Automaton has 70282 states and 98339 transitions. Word has length 244 [2022-11-03 01:49:39,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:49:39,352 INFO L495 AbstractCegarLoop]: Abstraction has 70282 states and 98339 transitions. [2022-11-03 01:49:39,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-03 01:49:39,353 INFO L276 IsEmpty]: Start isEmpty. Operand 70282 states and 98339 transitions. [2022-11-03 01:49:39,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-11-03 01:49:39,359 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:49:39,359 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 4, 4, 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] [2022-11-03 01:49:39,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 01:49:39,360 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 01:49:39,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:49:39,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1382187646, now seen corresponding path program 1 times [2022-11-03 01:49:39,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:49:39,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450344633] [2022-11-03 01:49:39,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:49:39,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:49:39,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:49:40,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1559 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1559 trivial. 0 not checked. [2022-11-03 01:49:40,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:49:40,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450344633] [2022-11-03 01:49:40,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450344633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:49:40,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:49:40,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:49:40,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942936573] [2022-11-03 01:49:40,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:49:40,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:49:40,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:49:40,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:49:40,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:49:40,464 INFO L87 Difference]: Start difference. First operand 70282 states and 98339 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-03 01:49:44,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:49:53,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:49:53,887 INFO L93 Difference]: Finished difference Result 70332 states and 98393 transitions. [2022-11-03 01:49:53,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:49:53,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 253 [2022-11-03 01:49:53,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:49:54,226 INFO L225 Difference]: With dead ends: 70332 [2022-11-03 01:49:54,226 INFO L226 Difference]: Without dead ends: 70330 [2022-11-03 01:49:54,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:49:54,259 INFO L413 NwaCegarLoop]: 2793 mSDtfsCounter, 3240 mSDsluCounter, 6671 mSDsCounter, 0 mSdLazyCounter, 1608 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3254 SdHoareTripleChecker+Valid, 8401 SdHoareTripleChecker+Invalid, 1610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1608 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-11-03 01:49:54,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3254 Valid, 8401 Invalid, 1610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1608 Invalid, 1 Unknown, 0 Unchecked, 10.9s Time] [2022-11-03 01:49:54,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70330 states. [2022-11-03 01:49:57,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70330 to 70328. [2022-11-03 01:49:57,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70328 states, 42000 states have (on average 1.2906190476190476) internal successors, (54206), 44145 states have internal predecessors, (54206), 21814 states have call successors, (21814), 6519 states have call predecessors, (21814), 6511 states have return successors, (22370), 21177 states have call predecessors, (22370), 21810 states have call successors, (22370) [2022-11-03 01:49:57,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70328 states to 70328 states and 98390 transitions. [2022-11-03 01:49:57,983 INFO L78 Accepts]: Start accepts. Automaton has 70328 states and 98390 transitions. Word has length 253 [2022-11-03 01:49:57,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:49:57,984 INFO L495 AbstractCegarLoop]: Abstraction has 70328 states and 98390 transitions. [2022-11-03 01:49:57,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-03 01:49:57,985 INFO L276 IsEmpty]: Start isEmpty. Operand 70328 states and 98390 transitions. [2022-11-03 01:49:57,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-11-03 01:49:57,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:49:57,991 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 4, 4, 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] [2022-11-03 01:49:57,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 01:49:57,991 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 01:49:57,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:49:57,992 INFO L85 PathProgramCache]: Analyzing trace with hash 49828673, now seen corresponding path program 1 times [2022-11-03 01:49:57,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:49:57,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110040108] [2022-11-03 01:49:57,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:49:57,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:49:58,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:49:59,305 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1559 trivial. 0 not checked. [2022-11-03 01:49:59,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:49:59,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110040108] [2022-11-03 01:49:59,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110040108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:49:59,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:49:59,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:49:59,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929661354] [2022-11-03 01:49:59,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:49:59,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:49:59,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:49:59,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:49:59,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:49:59,309 INFO L87 Difference]: Start difference. First operand 70328 states and 98390 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-03 01:50:04,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:10,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:15,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:17,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:18,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:50:18,258 INFO L93 Difference]: Finished difference Result 70352 states and 98404 transitions. [2022-11-03 01:50:18,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:50:18,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 258 [2022-11-03 01:50:18,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:50:18,570 INFO L225 Difference]: With dead ends: 70352 [2022-11-03 01:50:18,571 INFO L226 Difference]: Without dead ends: 70350 [2022-11-03 01:50:18,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:50:18,603 INFO L413 NwaCegarLoop]: 2796 mSDtfsCounter, 3225 mSDsluCounter, 6677 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3241 SdHoareTripleChecker+Valid, 8409 SdHoareTripleChecker+Invalid, 1611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:50:18,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3241 Valid, 8409 Invalid, 1611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1607 Invalid, 3 Unknown, 0 Unchecked, 16.3s Time] [2022-11-03 01:50:18,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70350 states. [2022-11-03 01:50:21,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70350 to 70348. [2022-11-03 01:50:21,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70348 states, 42011 states have (on average 1.2905429530361097) internal successors, (54217), 44156 states have internal predecessors, (54217), 21814 states have call successors, (21814), 6528 states have call predecessors, (21814), 6520 states have return successors, (22370), 21177 states have call predecessors, (22370), 21810 states have call successors, (22370) [2022-11-03 01:50:22,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70348 states to 70348 states and 98401 transitions. [2022-11-03 01:50:22,318 INFO L78 Accepts]: Start accepts. Automaton has 70348 states and 98401 transitions. Word has length 258 [2022-11-03 01:50:22,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:50:22,318 INFO L495 AbstractCegarLoop]: Abstraction has 70348 states and 98401 transitions. [2022-11-03 01:50:22,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-03 01:50:22,319 INFO L276 IsEmpty]: Start isEmpty. Operand 70348 states and 98401 transitions. [2022-11-03 01:50:22,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-11-03 01:50:22,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:50:22,324 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 5, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:50:22,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 01:50:22,324 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 01:50:22,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:50:22,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1809378867, now seen corresponding path program 1 times [2022-11-03 01:50:22,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:50:22,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858926563] [2022-11-03 01:50:22,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:50:22,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:50:22,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:50:23,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1574 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1570 trivial. 0 not checked. [2022-11-03 01:50:23,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:50:23,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858926563] [2022-11-03 01:50:23,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858926563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:50:23,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:50:23,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:50:23,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678284442] [2022-11-03 01:50:23,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:50:23,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:50:23,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:50:23,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:50:23,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:50:23,419 INFO L87 Difference]: Start difference. First operand 70348 states and 98401 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-03 01:50:28,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:36,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:41,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:50:41,341 INFO L93 Difference]: Finished difference Result 70356 states and 98407 transitions. [2022-11-03 01:50:41,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:50:41,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 266 [2022-11-03 01:50:41,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:50:41,640 INFO L225 Difference]: With dead ends: 70356 [2022-11-03 01:50:41,641 INFO L226 Difference]: Without dead ends: 70354 [2022-11-03 01:50:41,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:50:41,674 INFO L413 NwaCegarLoop]: 2796 mSDtfsCounter, 3224 mSDsluCounter, 6677 mSDsCounter, 0 mSdLazyCounter, 1608 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3239 SdHoareTripleChecker+Valid, 8409 SdHoareTripleChecker+Invalid, 1611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1608 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2022-11-03 01:50:41,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3239 Valid, 8409 Invalid, 1611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1608 Invalid, 2 Unknown, 0 Unchecked, 14.7s Time] [2022-11-03 01:50:41,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70354 states. [2022-11-03 01:50:45,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70354 to 70352. [2022-11-03 01:50:45,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70352 states, 42014 states have (on average 1.29052220688342) internal successors, (54220), 44159 states have internal predecessors, (54220), 21814 states have call successors, (21814), 6529 states have call predecessors, (21814), 6521 states have return successors, (22370), 21177 states have call predecessors, (22370), 21810 states have call successors, (22370) [2022-11-03 01:50:45,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70352 states to 70352 states and 98404 transitions. [2022-11-03 01:50:45,751 INFO L78 Accepts]: Start accepts. Automaton has 70352 states and 98404 transitions. Word has length 266 [2022-11-03 01:50:45,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:50:45,752 INFO L495 AbstractCegarLoop]: Abstraction has 70352 states and 98404 transitions. [2022-11-03 01:50:45,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-03 01:50:45,753 INFO L276 IsEmpty]: Start isEmpty. Operand 70352 states and 98404 transitions. [2022-11-03 01:50:45,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-03 01:50:45,758 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:50:45,758 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 5, 5, 4, 3, 3, 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] [2022-11-03 01:50:45,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 01:50:45,758 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 01:50:45,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:50:45,759 INFO L85 PathProgramCache]: Analyzing trace with hash 73404124, now seen corresponding path program 1 times [2022-11-03 01:50:45,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:50:45,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003201358] [2022-11-03 01:50:45,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:50:45,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:50:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:50:46,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1585 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1579 trivial. 0 not checked. [2022-11-03 01:50:46,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:50:46,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003201358] [2022-11-03 01:50:46,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003201358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:50:46,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:50:46,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:50:46,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090208316] [2022-11-03 01:50:46,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:50:46,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:50:46,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:50:46,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:50:46,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:50:46,611 INFO L87 Difference]: Start difference. First operand 70352 states and 98404 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-03 01:50:51,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:58,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:03,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:05,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:05,720 INFO L93 Difference]: Finished difference Result 76946 states and 105593 transitions. [2022-11-03 01:51:05,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:51:05,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 272 [2022-11-03 01:51:05,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:06,008 INFO L225 Difference]: With dead ends: 76946 [2022-11-03 01:51:06,008 INFO L226 Difference]: Without dead ends: 76944 [2022-11-03 01:51:06,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:51:06,036 INFO L413 NwaCegarLoop]: 2841 mSDtfsCounter, 3020 mSDsluCounter, 7148 mSDsCounter, 0 mSdLazyCounter, 1660 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3031 SdHoareTripleChecker+Valid, 8872 SdHoareTripleChecker+Invalid, 1664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1660 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:06,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3031 Valid, 8872 Invalid, 1664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1660 Invalid, 2 Unknown, 0 Unchecked, 15.4s Time] [2022-11-03 01:51:06,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76944 states. [2022-11-03 01:51:10,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76944 to 76944. [2022-11-03 01:51:10,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76944 states, 45673 states have (on average 1.277844678475248) internal successors, (58363), 47904 states have internal predecessors, (58363), 23336 states have call successors, (23336), 7940 states have call predecessors, (23336), 7932 states have return successors, (23892), 22699 states have call predecessors, (23892), 23332 states have call successors, (23892) [2022-11-03 01:51:10,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76944 states to 76944 states and 105591 transitions. [2022-11-03 01:51:10,401 INFO L78 Accepts]: Start accepts. Automaton has 76944 states and 105591 transitions. Word has length 272 [2022-11-03 01:51:10,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:10,402 INFO L495 AbstractCegarLoop]: Abstraction has 76944 states and 105591 transitions. [2022-11-03 01:51:10,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-03 01:51:10,402 INFO L276 IsEmpty]: Start isEmpty. Operand 76944 states and 105591 transitions. [2022-11-03 01:51:10,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-11-03 01:51:10,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:10,406 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 5, 5, 5, 4, 4, 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] [2022-11-03 01:51:10,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 01:51:10,407 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 01:51:10,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:10,408 INFO L85 PathProgramCache]: Analyzing trace with hash -516728429, now seen corresponding path program 1 times [2022-11-03 01:51:10,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:10,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727652589] [2022-11-03 01:51:10,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:10,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:10,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:11,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1598 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1590 trivial. 0 not checked. [2022-11-03 01:51:11,751 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:11,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727652589] [2022-11-03 01:51:11,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727652589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:11,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:51:11,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:51:11,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914474918] [2022-11-03 01:51:11,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:11,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:51:11,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:11,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:51:11,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:51:11,754 INFO L87 Difference]: Start difference. First operand 76944 states and 105591 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34)