./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a574cd64-1d18-4712-83f8-67576c208661/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a574cd64-1d18-4712-83f8-67576c208661/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a574cd64-1d18-4712-83f8-67576c208661/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a574cd64-1d18-4712-83f8-67576c208661/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a574cd64-1d18-4712-83f8-67576c208661/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a574cd64-1d18-4712-83f8-67576c208661/bin/utaipan-Q6hlc19bkW --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 ce7b7e06b36a72b3de911fb70c1b245fd97c856ddcef7fa1f63b6ddc09812498 --- 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-4e7fbc6 [2022-11-23 14:19:23,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:19:23,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:19:23,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:19:23,497 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:19:23,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:19:23,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:19:23,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:19:23,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:19:23,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:19:23,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:19:23,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:19:23,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:19:23,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:19:23,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:19:23,512 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:19:23,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:19:23,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:19:23,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:19:23,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:19:23,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:19:23,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:19:23,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:19:23,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:19:23,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:19:23,527 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:19:23,528 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:19:23,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:19:23,530 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:19:23,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:19:23,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:19:23,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:19:23,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:19:23,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:19:23,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:19:23,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:19:23,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:19:23,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:19:23,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:19:23,539 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:19:23,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:19:23,546 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a574cd64-1d18-4712-83f8-67576c208661/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:19:23,574 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:19:23,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:19:23,585 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:19:23,586 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:19:23,586 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:19:23,587 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:19:23,587 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:19:23,587 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:19:23,588 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:19:23,588 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:19:23,588 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:19:23,588 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:19:23,589 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:19:23,589 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:19:23,589 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:19:23,590 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:19:23,590 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:19:23,590 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:19:23,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:19:23,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:19:23,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:19:23,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:19:23,593 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:19:23,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:19:23,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:19:23,595 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:19:23,595 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:19:23,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:19:23,596 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:19:23,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:19:23,597 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:19:23,597 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:19:23,597 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:19:23,597 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:19:23,598 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:19:23,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:19:23,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:19:23,599 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:19:23,600 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_a574cd64-1d18-4712-83f8-67576c208661/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a574cd64-1d18-4712-83f8-67576c208661/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce7b7e06b36a72b3de911fb70c1b245fd97c856ddcef7fa1f63b6ddc09812498 [2022-11-23 14:19:23,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:19:23,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:19:23,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:19:23,945 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:19:23,946 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:19:23,947 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a574cd64-1d18-4712-83f8-67576c208661/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2022-11-23 14:19:26,924 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:19:27,698 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:19:27,699 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a574cd64-1d18-4712-83f8-67576c208661/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2022-11-23 14:19:27,763 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a574cd64-1d18-4712-83f8-67576c208661/bin/utaipan-Q6hlc19bkW/data/4f5bf8574/6c82e25332bd4c47a2775b420ad759d9/FLAG826266128 [2022-11-23 14:19:27,780 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a574cd64-1d18-4712-83f8-67576c208661/bin/utaipan-Q6hlc19bkW/data/4f5bf8574/6c82e25332bd4c47a2775b420ad759d9 [2022-11-23 14:19:27,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:19:27,784 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:19:27,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:19:27,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:19:27,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:19:27,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:19:27" (1/1) ... [2022-11-23 14:19:27,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c823140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:27, skipping insertion in model container [2022-11-23 14:19:27,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:19:27" (1/1) ... [2022-11-23 14:19:27,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:19:28,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:19:33,606 WARN L237 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_a574cd64-1d18-4712-83f8-67576c208661/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493165,493178] [2022-11-23 14:19:33,612 WARN L237 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_a574cd64-1d18-4712-83f8-67576c208661/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493334,493347] [2022-11-23 14:19:33,613 WARN L237 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_a574cd64-1d18-4712-83f8-67576c208661/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493501,493514] [2022-11-23 14:19:33,614 WARN L237 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_a574cd64-1d18-4712-83f8-67576c208661/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493669,493682] [2022-11-23 14:19:33,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:19:33,695 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:19:34,185 WARN L237 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_a574cd64-1d18-4712-83f8-67576c208661/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493165,493178] [2022-11-23 14:19:34,185 WARN L237 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_a574cd64-1d18-4712-83f8-67576c208661/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493334,493347] [2022-11-23 14:19:34,186 WARN L237 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_a574cd64-1d18-4712-83f8-67576c208661/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493501,493514] [2022-11-23 14:19:34,186 WARN L237 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_a574cd64-1d18-4712-83f8-67576c208661/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493669,493682] [2022-11-23 14:19:34,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:19:34,554 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:19:34,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:34 WrapperNode [2022-11-23 14:19:34,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:19:34,557 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:19:34,557 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:19:34,557 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:19:34,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:34" (1/1) ... [2022-11-23 14:19:34,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:34" (1/1) ... [2022-11-23 14:19:35,151 INFO L138 Inliner]: procedures = 688, calls = 4282, calls flagged for inlining = 342, calls inlined = 319, statements flattened = 10347 [2022-11-23 14:19:35,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:19:35,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:19:35,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:19:35,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:19:35,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:34" (1/1) ... [2022-11-23 14:19:35,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:34" (1/1) ... [2022-11-23 14:19:35,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:34" (1/1) ... [2022-11-23 14:19:35,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:34" (1/1) ... [2022-11-23 14:19:35,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:34" (1/1) ... [2022-11-23 14:19:35,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:34" (1/1) ... [2022-11-23 14:19:35,651 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:34" (1/1) ... [2022-11-23 14:19:35,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:34" (1/1) ... [2022-11-23 14:19:35,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:19:35,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:19:35,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:19:35,828 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:19:35,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:34" (1/1) ... [2022-11-23 14:19:35,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:19:35,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a574cd64-1d18-4712-83f8-67576c208661/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:19:35,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a574cd64-1d18-4712-83f8-67576c208661/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:19:35,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a574cd64-1d18-4712-83f8-67576c208661/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:19:35,906 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-23 14:19:35,906 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-23 14:19:35,906 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_read [2022-11-23 14:19:35,906 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_read [2022-11-23 14:19:35,907 INFO L130 BoogieDeclarations]: Found specification of procedure cas_pcs_link_check [2022-11-23 14:19:35,907 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_pcs_link_check [2022-11-23 14:19:35,907 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-23 14:19:35,907 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-23 14:19:35,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 14:19:35,907 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 14:19:35,908 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-23 14:19:35,908 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-23 14:19:35,908 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-23 14:19:35,908 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-23 14:19:35,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 14:19:35,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 14:19:35,908 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mii_link_check [2022-11-23 14:19:35,909 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mii_link_check [2022-11-23 14:19:35,909 INFO L130 BoogieDeclarations]: Found specification of procedure cas_calc_tabort [2022-11-23 14:19:35,910 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_calc_tabort [2022-11-23 14:19:35,910 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-23 14:19:35,910 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-23 14:19:35,911 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2022-11-23 14:19:35,911 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2022-11-23 14:19:35,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-23 14:19:35,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-23 14:19:35,912 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-23 14:19:35,912 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-23 14:19:35,912 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-23 14:19:35,912 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-23 14:19:35,912 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-23 14:19:35,913 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-23 14:19:35,913 INFO L130 BoogieDeclarations]: Found specification of procedure cas_lock_tx [2022-11-23 14:19:35,913 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_lock_tx [2022-11-23 14:19:35,913 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-23 14:19:35,913 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-23 14:19:35,914 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-23 14:19:35,914 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-23 14:19:35,914 INFO L130 BoogieDeclarations]: Found specification of procedure cas_disable_irq [2022-11-23 14:19:35,914 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_disable_irq [2022-11-23 14:19:35,914 INFO L130 BoogieDeclarations]: Found specification of procedure cas_free_rxds [2022-11-23 14:19:35,914 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_free_rxds [2022-11-23 14:19:35,914 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_page [2022-11-23 14:19:35,915 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_page [2022-11-23 14:19:35,916 INFO L130 BoogieDeclarations]: Found specification of procedure cas_open [2022-11-23 14:19:35,916 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_open [2022-11-23 14:19:35,916 INFO L130 BoogieDeclarations]: Found specification of procedure cas_interrupt [2022-11-23 14:19:35,916 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_interrupt [2022-11-23 14:19:35,916 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_tiny_free [2022-11-23 14:19:35,916 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_tiny_free [2022-11-23 14:19:35,916 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2022-11-23 14:19:35,917 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2022-11-23 14:19:35,917 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_map [2022-11-23 14:19:35,917 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_map [2022-11-23 14:19:35,917 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_init [2022-11-23 14:19:35,917 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_init [2022-11-23 14:19:35,917 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-11-23 14:19:35,918 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-11-23 14:19:35,918 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2022-11-23 14:19:35,918 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2022-11-23 14:19:35,918 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-23 14:19:35,919 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-23 14:19:35,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-23 14:19:35,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-23 14:19:35,919 INFO L130 BoogieDeclarations]: Found specification of procedure cas_enable_irq [2022-11-23 14:19:35,919 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_enable_irq [2022-11-23 14:19:35,919 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-23 14:19:35,920 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-23 14:19:35,920 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-23 14:19:35,921 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-23 14:19:35,921 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_dequeue [2022-11-23 14:19:35,921 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_dequeue [2022-11-23 14:19:35,921 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-23 14:19:35,921 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-23 14:19:35,922 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-23 14:19:35,922 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-23 14:19:35,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 14:19:35,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 14:19:35,923 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 14:19:35,923 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 14:19:35,923 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-23 14:19:35,923 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-23 14:19:35,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:19:35,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_108 [2022-11-23 14:19:35,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_108 [2022-11-23 14:19:35,924 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-23 14:19:35,925 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-23 14:19:35,925 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_multicast [2022-11-23 14:19:35,925 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_multicast [2022-11-23 14:19:35,925 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-23 14:19:35,925 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-23 14:19:35,925 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-23 14:19:35,926 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-23 14:19:35,926 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_free [2022-11-23 14:19:35,926 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_free [2022-11-23 14:19:35,926 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_timeout [2022-11-23 14:19:35,927 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_timeout [2022-11-23 14:19:35,927 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-23 14:19:35,927 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-23 14:19:35,927 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_pcs_link_mode [2022-11-23 14:19:35,927 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_pcs_link_mode [2022-11-23 14:19:35,927 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-23 14:19:35,928 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-23 14:19:35,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 14:19:35,929 INFO L130 BoogieDeclarations]: Found specification of procedure cas_close [2022-11-23 14:19:35,932 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_close [2022-11-23 14:19:35,932 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_swap [2022-11-23 14:19:35,933 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_swap [2022-11-23 14:19:35,933 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-23 14:19:35,934 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-23 14:19:35,934 INFO L130 BoogieDeclarations]: Found specification of procedure cas_netpoll [2022-11-23 14:19:35,935 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_netpoll [2022-11-23 14:19:35,935 INFO L130 BoogieDeclarations]: Found specification of procedure cas_hard_reset [2022-11-23 14:19:35,935 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_hard_reset [2022-11-23 14:19:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-23 14:19:35,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-23 14:19:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 14:19:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-23 14:19:35,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-23 14:19:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure cas_rxc_init [2022-11-23 14:19:35,943 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_rxc_init [2022-11-23 14:19:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:19:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 14:19:35,945 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 14:19:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clear_mac_err [2022-11-23 14:19:35,945 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clear_mac_err [2022-11-23 14:19:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-23 14:19:35,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-23 14:19:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-23 14:19:35,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-23 14:19:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-23 14:19:35,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-23 14:19:35,946 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-23 14:19:35,946 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-23 14:19:35,946 INFO L130 BoogieDeclarations]: Found specification of procedure cas_remove_one [2022-11-23 14:19:35,946 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_remove_one [2022-11-23 14:19:35,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_NOT_ARG_SIGN [2022-11-23 14:19:35,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_NOT_ARG_SIGN [2022-11-23 14:19:35,947 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-23 14:19:35,947 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-23 14:19:35,947 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-23 14:19:35,947 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-23 14:19:35,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-23 14:19:35,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-23 14:19:35,947 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-23 14:19:35,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-23 14:19:35,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:19:35,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-23 14:19:35,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-23 14:19:35,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-23 14:19:35,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-23 14:19:35,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-23 14:19:35,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-23 14:19:35,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:19:35,949 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2022-11-23 14:19:35,950 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2022-11-23 14:19:35,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 14:19:35,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 14:19:35,950 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 14:19:35,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 14:19:35,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:19:35,951 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 14:19:35,951 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 14:19:35,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 14:19:35,951 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_link_modes [2022-11-23 14:19:35,951 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_link_modes [2022-11-23 14:19:35,951 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_mii_link_mode [2022-11-23 14:19:35,952 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_mii_link_mode [2022-11-23 14:19:35,952 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2022-11-23 14:19:35,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2022-11-23 14:19:35,952 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-23 14:19:35,952 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-23 14:19:35,952 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-23 14:19:35,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-23 14:19:35,953 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-23 14:19:35,953 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-23 14:19:35,953 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2022-11-23 14:19:35,953 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2022-11-23 14:19:35,953 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-23 14:19:35,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-23 14:19:35,953 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-23 14:19:35,954 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-23 14:19:35,954 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-23 14:19:35,954 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-23 14:19:35,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-23 14:19:35,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-23 14:19:35,954 INFO L130 BoogieDeclarations]: Found specification of procedure csum_unfold [2022-11-23 14:19:35,955 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_unfold [2022-11-23 14:19:35,955 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-23 14:19:35,955 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-23 14:19:35,955 INFO L130 BoogieDeclarations]: Found specification of procedure cas_entropy_gather [2022-11-23 14:19:35,955 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_entropy_gather [2022-11-23 14:19:35,955 INFO L130 BoogieDeclarations]: Found specification of procedure cas_resume [2022-11-23 14:19:35,955 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_resume [2022-11-23 14:19:35,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:19:35,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:19:35,956 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_alloc [2022-11-23 14:19:35,956 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_alloc [2022-11-23 14:19:35,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 14:19:35,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 14:19:35,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 14:19:35,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 14:19:35,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-23 14:19:35,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-23 14:19:35,957 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-23 14:19:35,957 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-23 14:19:35,957 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mif_poll [2022-11-23 14:19:35,957 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mif_poll [2022-11-23 14:19:35,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-23 14:19:35,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-23 14:19:35,958 INFO L130 BoogieDeclarations]: Found specification of procedure cas_unlock_tx [2022-11-23 14:19:35,958 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_unlock_tx [2022-11-23 14:19:35,958 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-23 14:19:35,958 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-23 14:19:35,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_133 [2022-11-23 14:19:35,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_133 [2022-11-23 14:19:35,959 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice [2022-11-23 14:19:35,959 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice [2022-11-23 14:19:35,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_135 [2022-11-23 14:19:35,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_135 [2022-11-23 14:19:35,959 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-23 14:19:35,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-23 14:19:35,959 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2022-11-23 14:19:35,959 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2022-11-23 14:19:35,960 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-23 14:19:35,960 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-23 14:19:35,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:19:35,960 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:19:35,960 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-23 14:19:35,960 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-23 14:19:35,960 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-23 14:19:35,962 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-23 14:19:35,964 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_buf [2022-11-23 14:19:35,965 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_buf [2022-11-23 14:19:35,965 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mac_reset [2022-11-23 14:19:35,965 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mac_reset [2022-11-23 14:19:35,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_cas [2022-11-23 14:19:35,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_cas [2022-11-23 14:19:35,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:19:35,965 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-23 14:19:35,965 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-23 14:19:35,965 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_set_page [2022-11-23 14:19:35,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_set_page [2022-11-23 14:19:35,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:19:35,966 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_regs_len [2022-11-23 14:19:35,966 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_regs_len [2022-11-23 14:19:35,966 INFO L130 BoogieDeclarations]: Found specification of procedure cas_reset [2022-11-23 14:19:35,966 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_reset [2022-11-23 14:19:35,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_NOT_ARG_SIGN [2022-11-23 14:19:35,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_NOT_ARG_SIGN [2022-11-23 14:19:35,966 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-11-23 14:19:35,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-11-23 14:19:35,966 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_page [2022-11-23 14:19:35,966 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_page [2022-11-23 14:19:35,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 14:19:35,967 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-23 14:19:35,967 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-23 14:19:35,967 INFO L130 BoogieDeclarations]: Found specification of procedure cas_nway_reset [2022-11-23 14:19:35,967 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_nway_reset [2022-11-23 14:19:35,967 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-23 14:19:35,967 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-23 14:19:35,967 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-23 14:19:35,967 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-23 14:19:35,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-23 14:19:35,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-23 14:19:35,968 INFO L130 BoogieDeclarations]: Found specification of procedure cas_setup_multicast [2022-11-23 14:19:35,968 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_setup_multicast [2022-11-23 14:19:35,968 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_powerdown [2022-11-23 14:19:35,968 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_powerdown [2022-11-23 14:19:35,968 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_rxds_ringN [2022-11-23 14:19:35,968 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_rxds_ringN [2022-11-23 14:19:35,968 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-23 14:19:35,968 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-23 14:19:35,968 INFO L130 BoogieDeclarations]: Found specification of procedure cas_vpd_match [2022-11-23 14:19:35,968 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_vpd_match [2022-11-23 14:19:35,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_83 [2022-11-23 14:19:35,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_83 [2022-11-23 14:19:35,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_81 [2022-11-23 14:19:35,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_81 [2022-11-23 14:19:35,969 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-23 14:19:35,969 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-23 14:19:35,969 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2022-11-23 14:19:35,969 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2022-11-23 14:19:35,969 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-23 14:19:35,969 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-23 14:19:35,969 INFO L130 BoogieDeclarations]: Found specification of procedure page_count [2022-11-23 14:19:35,969 INFO L138 BoogieDeclarations]: Found implementation of procedure page_count [2022-11-23 14:19:35,970 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-23 14:19:35,970 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-23 14:19:35,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_77 [2022-11-23 14:19:35,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_77 [2022-11-23 14:19:35,970 INFO L130 BoogieDeclarations]: Found specification of procedure cas_shutdown [2022-11-23 14:19:35,970 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_shutdown [2022-11-23 14:19:35,970 INFO L130 BoogieDeclarations]: Found specification of procedure cas_begin_auto_negotiation [2022-11-23 14:19:35,970 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_begin_auto_negotiation [2022-11-23 14:19:35,970 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-23 14:19:35,970 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-23 14:19:35,970 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-23 14:19:35,971 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-23 14:19:35,971 INFO L130 BoogieDeclarations]: Found specification of procedure cas_write_txd [2022-11-23 14:19:35,971 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_write_txd [2022-11-23 14:19:35,971 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 14:19:35,971 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 14:19:35,971 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_ref [2022-11-23 14:19:35,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_ref [2022-11-23 14:19:35,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:19:35,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 14:19:35,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 14:19:35,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_82 [2022-11-23 14:19:35,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_82 [2022-11-23 14:19:35,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_84 [2022-11-23 14:19:35,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_84 [2022-11-23 14:19:35,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_79 [2022-11-23 14:19:35,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_79 [2022-11-23 14:19:35,972 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-23 14:19:35,972 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-23 14:19:35,972 INFO L130 BoogieDeclarations]: Found specification of procedure cas_init_hw [2022-11-23 14:19:35,972 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_init_hw [2022-11-23 14:19:35,973 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clean_rings [2022-11-23 14:19:35,973 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clean_rings [2022-11-23 14:19:35,973 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_free [2022-11-23 14:19:35,973 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_free [2022-11-23 14:19:35,973 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-23 14:19:35,973 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-23 14:19:35,973 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_write [2022-11-23 14:19:35,973 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_write [2022-11-23 14:19:35,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-23 14:19:35,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-23 14:19:35,973 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-23 14:19:35,974 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-23 14:19:35,974 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-23 14:19:35,974 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-23 14:19:35,974 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_recover [2022-11-23 14:19:35,974 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_recover [2022-11-23 14:19:35,974 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2022-11-23 14:19:35,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2022-11-23 14:19:35,974 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-23 14:19:35,974 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-23 14:19:35,974 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_stats [2022-11-23 14:19:35,975 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_stats [2022-11-23 14:19:35,975 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-23 14:19:35,975 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-23 14:19:35,975 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2022-11-23 14:19:35,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2022-11-23 14:19:35,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:19:35,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-23 14:19:35,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-23 14:19:35,975 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-11-23 14:19:35,975 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-11-23 14:19:35,975 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-23 14:19:35,976 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-23 14:19:35,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_107 [2022-11-23 14:19:35,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_107 [2022-11-23 14:19:37,325 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:19:37,329 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:19:37,704 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 14:23:35,710 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-23 14:23:35,999 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:23:40,477 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:23:40,477 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-23 14:23:40,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:23:40 BoogieIcfgContainer [2022-11-23 14:23:40,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:23:40,493 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:23:40,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:23:40,497 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:23:40,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:19:27" (1/3) ... [2022-11-23 14:23:40,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6615aa09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:23:40, skipping insertion in model container [2022-11-23 14:23:40,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:34" (2/3) ... [2022-11-23 14:23:40,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6615aa09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:23:40, skipping insertion in model container [2022-11-23 14:23:40,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:23:40" (3/3) ... [2022-11-23 14:23:40,502 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2022-11-23 14:23:40,527 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:23:40,527 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-23 14:23:40,649 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:23:40,664 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;@5cc0498c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:23:40,664 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-23 14:23:40,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 2916 states, 1656 states have (on average 1.2765700483091786) internal successors, (2114), 1726 states have internal predecessors, (2114), 1091 states have call successors, (1091), 168 states have call predecessors, (1091), 167 states have return successors, (1086), 1074 states have call predecessors, (1086), 1086 states have call successors, (1086) [2022-11-23 14:23:40,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-23 14:23:40,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:40,697 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:40,698 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)] === [2022-11-23 14:23:40,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:40,703 INFO L85 PathProgramCache]: Analyzing trace with hash 2039636398, now seen corresponding path program 1 times [2022-11-23 14:23:40,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:40,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892683355] [2022-11-23 14:23:40,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:40,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:42,544 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-11-23 14:23:42,545 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:42,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892683355] [2022-11-23 14:23:42,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892683355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:42,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:42,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:23:42,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407572914] [2022-11-23 14:23:42,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:42,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:23:42,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:42,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:23:42,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:23:42,607 INFO L87 Difference]: Start difference. First operand has 2916 states, 1656 states have (on average 1.2765700483091786) internal successors, (2114), 1726 states have internal predecessors, (2114), 1091 states have call successors, (1091), 168 states have call predecessors, (1091), 167 states have return successors, (1086), 1074 states have call predecessors, (1086), 1086 states have call successors, (1086) Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-23 14:23:44,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:23:52,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:52,741 INFO L93 Difference]: Finished difference Result 8626 states and 13064 transitions. [2022-11-23 14:23:52,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:23:52,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 137 [2022-11-23 14:23:52,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:52,820 INFO L225 Difference]: With dead ends: 8626 [2022-11-23 14:23:52,821 INFO L226 Difference]: Without dead ends: 5725 [2022-11-23 14:23:52,856 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 [2022-11-23 14:23:52,860 INFO L413 NwaCegarLoop]: 4891 mSDtfsCounter, 4172 mSDsluCounter, 3814 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4172 SdHoareTripleChecker+Valid, 8705 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:52,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4172 Valid, 8705 Invalid, 886 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 882 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2022-11-23 14:23:52,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5725 states. [2022-11-23 14:23:53,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5725 to 5721. [2022-11-23 14:23:53,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5721 states, 3261 states have (on average 1.2744556884391292) internal successors, (4156), 3397 states have internal predecessors, (4156), 2126 states have call successors, (2126), 332 states have call predecessors, (2126), 331 states have return successors, (2123), 2099 states have call predecessors, (2123), 2123 states have call successors, (2123) [2022-11-23 14:23:53,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5721 states to 5721 states and 8405 transitions. [2022-11-23 14:23:53,583 INFO L78 Accepts]: Start accepts. Automaton has 5721 states and 8405 transitions. Word has length 137 [2022-11-23 14:23:53,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:53,587 INFO L495 AbstractCegarLoop]: Abstraction has 5721 states and 8405 transitions. [2022-11-23 14:23:53,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-23 14:23:53,588 INFO L276 IsEmpty]: Start isEmpty. Operand 5721 states and 8405 transitions. [2022-11-23 14:23:53,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-23 14:23:53,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:53,600 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:53,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:23:53,601 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)] === [2022-11-23 14:23:53,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:53,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1145504328, now seen corresponding path program 1 times [2022-11-23 14:23:53,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:53,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493133807] [2022-11-23 14:23:53,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:53,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:54,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:54,839 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-11-23 14:23:54,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:54,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493133807] [2022-11-23 14:23:54,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493133807] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:54,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:54,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:23:54,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871957003] [2022-11-23 14:23:54,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:54,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:23:54,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:54,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:23:54,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:23:54,851 INFO L87 Difference]: Start difference. First operand 5721 states and 8405 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-23 14:23:56,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:05,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:05,163 INFO L93 Difference]: Finished difference Result 16943 states and 24925 transitions. [2022-11-23 14:24:05,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:24:05,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 142 [2022-11-23 14:24:05,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:05,256 INFO L225 Difference]: With dead ends: 16943 [2022-11-23 14:24:05,256 INFO L226 Difference]: Without dead ends: 11247 [2022-11-23 14:24:05,296 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 [2022-11-23 14:24:05,297 INFO L413 NwaCegarLoop]: 4874 mSDtfsCounter, 4108 mSDsluCounter, 3823 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4108 SdHoareTripleChecker+Valid, 8697 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:05,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4108 Valid, 8697 Invalid, 882 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 878 Invalid, 1 Unknown, 0 Unchecked, 9.7s Time] [2022-11-23 14:24:05,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11247 states. [2022-11-23 14:24:05,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11247 to 11211. [2022-11-23 14:24:06,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11211 states, 6406 states have (on average 1.2736497034030596) internal successors, (8159), 6672 states have internal predecessors, (8159), 4143 states have call successors, (4143), 662 states have call predecessors, (4143), 659 states have return successors, (4202), 4080 states have call predecessors, (4202), 4140 states have call successors, (4202) [2022-11-23 14:24:06,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11211 states to 11211 states and 16504 transitions. [2022-11-23 14:24:06,093 INFO L78 Accepts]: Start accepts. Automaton has 11211 states and 16504 transitions. Word has length 142 [2022-11-23 14:24:06,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:06,096 INFO L495 AbstractCegarLoop]: Abstraction has 11211 states and 16504 transitions. [2022-11-23 14:24:06,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-23 14:24:06,097 INFO L276 IsEmpty]: Start isEmpty. Operand 11211 states and 16504 transitions. [2022-11-23 14:24:06,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-23 14:24:06,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:06,102 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:24:06,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:24:06,103 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)] === [2022-11-23 14:24:06,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:06,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1309334893, now seen corresponding path program 1 times [2022-11-23 14:24:06,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:06,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273456560] [2022-11-23 14:24:06,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:06,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:07,219 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-11-23 14:24:07,222 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:07,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273456560] [2022-11-23 14:24:07,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273456560] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:24:07,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:24:07,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:24:07,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586724451] [2022-11-23 14:24:07,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:24:07,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:24:07,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:24:07,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:24:07,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:24:07,226 INFO L87 Difference]: Start difference. First operand 11211 states and 16504 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-23 14:24:09,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:17,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:17,414 INFO L93 Difference]: Finished difference Result 32183 states and 47238 transitions. [2022-11-23 14:24:17,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:24:17,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 146 [2022-11-23 14:24:17,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:17,581 INFO L225 Difference]: With dead ends: 32183 [2022-11-23 14:24:17,581 INFO L226 Difference]: Without dead ends: 20997 [2022-11-23 14:24:17,656 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 [2022-11-23 14:24:17,658 INFO L413 NwaCegarLoop]: 4765 mSDtfsCounter, 3692 mSDsluCounter, 3754 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3692 SdHoareTripleChecker+Valid, 8519 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:17,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3692 Valid, 8519 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 920 Invalid, 1 Unknown, 0 Unchecked, 9.2s Time] [2022-11-23 14:24:17,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20997 states. [2022-11-23 14:24:19,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20997 to 20957. [2022-11-23 14:24:19,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20957 states, 11980 states have (on average 1.267195325542571) internal successors, (15181), 12474 states have internal predecessors, (15181), 7693 states have call successors, (7693), 1286 states have call predecessors, (7693), 1281 states have return successors, (7822), 7578 states have call predecessors, (7822), 7690 states have call successors, (7822) [2022-11-23 14:24:19,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20957 states to 20957 states and 30696 transitions. [2022-11-23 14:24:19,617 INFO L78 Accepts]: Start accepts. Automaton has 20957 states and 30696 transitions. Word has length 146 [2022-11-23 14:24:19,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:19,618 INFO L495 AbstractCegarLoop]: Abstraction has 20957 states and 30696 transitions. [2022-11-23 14:24:19,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-23 14:24:19,618 INFO L276 IsEmpty]: Start isEmpty. Operand 20957 states and 30696 transitions. [2022-11-23 14:24:19,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-23 14:24:19,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:19,621 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:24:19,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:24:19,621 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)] === [2022-11-23 14:24:19,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:19,622 INFO L85 PathProgramCache]: Analyzing trace with hash -107765060, now seen corresponding path program 1 times [2022-11-23 14:24:19,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:19,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798083884] [2022-11-23 14:24:19,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:19,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:20,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:20,567 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-11-23 14:24:20,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:20,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798083884] [2022-11-23 14:24:20,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798083884] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:24:20,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:24:20,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:24:20,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777998405] [2022-11-23 14:24:20,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:24:20,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:24:20,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:24:20,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:24:20,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:24:20,570 INFO L87 Difference]: Start difference. First operand 20957 states and 30696 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-23 14:24:22,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:29,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:29,931 INFO L93 Difference]: Finished difference Result 39136 states and 56916 transitions. [2022-11-23 14:24:29,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:24:29,936 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 151 [2022-11-23 14:24:29,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:30,044 INFO L225 Difference]: With dead ends: 39136 [2022-11-23 14:24:30,044 INFO L226 Difference]: Without dead ends: 18204 [2022-11-23 14:24:30,139 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 [2022-11-23 14:24:30,140 INFO L413 NwaCegarLoop]: 5022 mSDtfsCounter, 2448 mSDsluCounter, 3789 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2448 SdHoareTripleChecker+Valid, 8811 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:30,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2448 Valid, 8811 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1045 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2022-11-23 14:24:30,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18204 states. [2022-11-23 14:24:31,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18204 to 18169. [2022-11-23 14:24:31,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18169 states, 10492 states have (on average 1.2646778497903164) internal successors, (13269), 10929 states have internal predecessors, (13269), 6383 states have call successors, (6383), 1294 states have call predecessors, (6383), 1291 states have return successors, (6465), 6286 states have call predecessors, (6465), 6380 states have call successors, (6465) [2022-11-23 14:24:31,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18169 states to 18169 states and 26117 transitions. [2022-11-23 14:24:31,430 INFO L78 Accepts]: Start accepts. Automaton has 18169 states and 26117 transitions. Word has length 151 [2022-11-23 14:24:31,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:31,432 INFO L495 AbstractCegarLoop]: Abstraction has 18169 states and 26117 transitions. [2022-11-23 14:24:31,433 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-23 14:24:31,433 INFO L276 IsEmpty]: Start isEmpty. Operand 18169 states and 26117 transitions. [2022-11-23 14:24:31,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-23 14:24:31,436 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:31,436 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:24:31,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:24:31,437 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)] === [2022-11-23 14:24:31,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:31,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1049443970, now seen corresponding path program 1 times [2022-11-23 14:24:31,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:31,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96431190] [2022-11-23 14:24:31,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:31,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:32,316 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-11-23 14:24:32,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:32,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96431190] [2022-11-23 14:24:32,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96431190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:24:32,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:24:32,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:24:32,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195560841] [2022-11-23 14:24:32,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:24:32,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:24:32,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:24:32,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:24:32,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:24:32,318 INFO L87 Difference]: Start difference. First operand 18169 states and 26117 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-23 14:24:34,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:42,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:42,065 INFO L93 Difference]: Finished difference Result 48716 states and 70299 transitions. [2022-11-23 14:24:42,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:24:42,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 154 [2022-11-23 14:24:42,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:42,236 INFO L225 Difference]: With dead ends: 48716 [2022-11-23 14:24:42,236 INFO L226 Difference]: Without dead ends: 30572 [2022-11-23 14:24:42,315 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 [2022-11-23 14:24:42,319 INFO L413 NwaCegarLoop]: 5047 mSDtfsCounter, 4201 mSDsluCounter, 3777 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4201 SdHoareTripleChecker+Valid, 8824 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:42,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4201 Valid, 8824 Invalid, 905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 898 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2022-11-23 14:24:42,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30572 states. [2022-11-23 14:24:44,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30572 to 30532. [2022-11-23 14:24:44,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30532 states, 17605 states have (on average 1.2648679352456689) internal successors, (22268), 18346 states have internal predecessors, (22268), 10849 states have call successors, (10849), 2084 states have call predecessors, (10849), 2075 states have return successors, (11020), 10658 states have call predecessors, (11020), 10846 states have call successors, (11020) [2022-11-23 14:24:44,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30532 states to 30532 states and 44137 transitions. [2022-11-23 14:24:44,703 INFO L78 Accepts]: Start accepts. Automaton has 30532 states and 44137 transitions. Word has length 154 [2022-11-23 14:24:44,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:44,704 INFO L495 AbstractCegarLoop]: Abstraction has 30532 states and 44137 transitions. [2022-11-23 14:24:44,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-23 14:24:44,704 INFO L276 IsEmpty]: Start isEmpty. Operand 30532 states and 44137 transitions. [2022-11-23 14:24:44,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-23 14:24:44,707 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:44,708 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 4, 4, 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] [2022-11-23 14:24:44,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:24:44,708 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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)] === [2022-11-23 14:24:44,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:44,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1706072167, now seen corresponding path program 1 times [2022-11-23 14:24:44,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:44,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692472488] [2022-11-23 14:24:44,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:44,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:45,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:46,744 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2022-11-23 14:24:46,744 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:46,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692472488] [2022-11-23 14:24:46,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692472488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:24:46,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:24:46,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:24:46,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645754565] [2022-11-23 14:24:46,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:24:46,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:24:46,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:24:46,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:24:46,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:24:46,746 INFO L87 Difference]: Start difference. First operand 30532 states and 44137 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-23 14:24:48,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:01,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:01,887 INFO L93 Difference]: Finished difference Result 56215 states and 81229 transitions. [2022-11-23 14:25:01,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:25:01,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 175 [2022-11-23 14:25:01,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:02,173 INFO L225 Difference]: With dead ends: 56215 [2022-11-23 14:25:02,174 INFO L226 Difference]: Without dead ends: 56213 [2022-11-23 14:25:02,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:25:02,206 INFO L413 NwaCegarLoop]: 4728 mSDtfsCounter, 4040 mSDsluCounter, 12620 mSDsCounter, 0 mSdLazyCounter, 1761 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4058 SdHoareTripleChecker+Valid, 17348 SdHoareTripleChecker+Invalid, 1765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1761 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:02,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4058 Valid, 17348 Invalid, 1765 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1761 Invalid, 1 Unknown, 0 Unchecked, 13.4s Time] [2022-11-23 14:25:02,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56213 states. [2022-11-23 14:25:05,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56213 to 56177. [2022-11-23 14:25:05,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56177 states, 32434 states have (on average 1.2666337793673306) internal successors, (41082), 33918 states have internal predecessors, (41082), 19801 states have call successors, (19801), 4049 states have call predecessors, (19801), 3939 states have return successors, (20311), 19168 states have call predecessors, (20311), 19795 states have call successors, (20311) [2022-11-23 14:25:05,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56177 states to 56177 states and 81194 transitions. [2022-11-23 14:25:05,961 INFO L78 Accepts]: Start accepts. Automaton has 56177 states and 81194 transitions. Word has length 175 [2022-11-23 14:25:05,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:05,978 INFO L495 AbstractCegarLoop]: Abstraction has 56177 states and 81194 transitions. [2022-11-23 14:25:05,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-23 14:25:05,978 INFO L276 IsEmpty]: Start isEmpty. Operand 56177 states and 81194 transitions. [2022-11-23 14:25:05,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-23 14:25:05,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:05,981 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 4, 4, 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] [2022-11-23 14:25:05,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 14:25:05,982 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)] === [2022-11-23 14:25:05,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:05,982 INFO L85 PathProgramCache]: Analyzing trace with hash 493025443, now seen corresponding path program 1 times [2022-11-23 14:25:05,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:05,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734565782] [2022-11-23 14:25:05,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:05,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:07,865 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2022-11-23 14:25:07,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:07,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734565782] [2022-11-23 14:25:07,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734565782] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:07,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:25:07,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:25:07,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227133155] [2022-11-23 14:25:07,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:07,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:25:07,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:07,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:25:07,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:25:07,868 INFO L87 Difference]: Start difference. First operand 56177 states and 81194 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-23 14:25:10,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:20,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:20,029 INFO L93 Difference]: Finished difference Result 56187 states and 81203 transitions. [2022-11-23 14:25:20,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:25:20,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 180 [2022-11-23 14:25:20,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:20,317 INFO L225 Difference]: With dead ends: 56187 [2022-11-23 14:25:20,318 INFO L226 Difference]: Without dead ends: 56185 [2022-11-23 14:25:20,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:25:20,344 INFO L413 NwaCegarLoop]: 3824 mSDtfsCounter, 4202 mSDsluCounter, 7622 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4219 SdHoareTripleChecker+Valid, 11446 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:20,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4219 Valid, 11446 Invalid, 1342 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1340 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2022-11-23 14:25:20,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56185 states. [2022-11-23 14:25:23,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56185 to 56185. [2022-11-23 14:25:23,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56185 states, 32440 states have (on average 1.2665844636251542) internal successors, (41088), 33924 states have internal predecessors, (41088), 19801 states have call successors, (19801), 4051 states have call predecessors, (19801), 3941 states have return successors, (20311), 19168 states have call predecessors, (20311), 19795 states have call successors, (20311) [2022-11-23 14:25:23,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56185 states to 56185 states and 81200 transitions. [2022-11-23 14:25:23,656 INFO L78 Accepts]: Start accepts. Automaton has 56185 states and 81200 transitions. Word has length 180 [2022-11-23 14:25:23,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:23,657 INFO L495 AbstractCegarLoop]: Abstraction has 56185 states and 81200 transitions. [2022-11-23 14:25:23,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-23 14:25:23,657 INFO L276 IsEmpty]: Start isEmpty. Operand 56185 states and 81200 transitions. [2022-11-23 14:25:23,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-23 14:25:23,660 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:23,660 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 6, 6, 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] [2022-11-23 14:25:23,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 14:25:23,661 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)] === [2022-11-23 14:25:23,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:23,661 INFO L85 PathProgramCache]: Analyzing trace with hash -473662926, now seen corresponding path program 1 times [2022-11-23 14:25:23,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:23,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925647219] [2022-11-23 14:25:23,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:23,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:25,818 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-11-23 14:25:25,818 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:25,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925647219] [2022-11-23 14:25:25,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925647219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:25,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:25:25,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:25:25,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201078241] [2022-11-23 14:25:25,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:25,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:25:25,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:25,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:25:25,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:25:25,820 INFO L87 Difference]: Start difference. First operand 56185 states and 81200 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-23 14:25:27,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:38,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:38,083 INFO L93 Difference]: Finished difference Result 56195 states and 81209 transitions. [2022-11-23 14:25:38,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:25:38,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 194 [2022-11-23 14:25:38,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:38,329 INFO L225 Difference]: With dead ends: 56195 [2022-11-23 14:25:38,330 INFO L226 Difference]: Without dead ends: 56193 [2022-11-23 14:25:38,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:25:38,362 INFO L413 NwaCegarLoop]: 3824 mSDtfsCounter, 4198 mSDsluCounter, 7622 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4214 SdHoareTripleChecker+Valid, 11446 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:38,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4214 Valid, 11446 Invalid, 1342 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1340 Invalid, 1 Unknown, 0 Unchecked, 10.1s Time] [2022-11-23 14:25:38,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56193 states. [2022-11-23 14:25:41,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56193 to 56193. [2022-11-23 14:25:41,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56193 states, 32446 states have (on average 1.2665351661221722) internal successors, (41094), 33930 states have internal predecessors, (41094), 19801 states have call successors, (19801), 4053 states have call predecessors, (19801), 3943 states have return successors, (20311), 19168 states have call predecessors, (20311), 19795 states have call successors, (20311) [2022-11-23 14:25:41,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56193 states to 56193 states and 81206 transitions. [2022-11-23 14:25:41,511 INFO L78 Accepts]: Start accepts. Automaton has 56193 states and 81206 transitions. Word has length 194 [2022-11-23 14:25:41,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:41,512 INFO L495 AbstractCegarLoop]: Abstraction has 56193 states and 81206 transitions. [2022-11-23 14:25:41,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-23 14:25:41,512 INFO L276 IsEmpty]: Start isEmpty. Operand 56193 states and 81206 transitions. [2022-11-23 14:25:41,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-23 14:25:41,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:41,514 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 6, 6, 4, 3, 3, 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] [2022-11-23 14:25:41,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 14:25:41,515 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)] === [2022-11-23 14:25:41,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:41,516 INFO L85 PathProgramCache]: Analyzing trace with hash 832097578, now seen corresponding path program 1 times [2022-11-23 14:25:41,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:41,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806810861] [2022-11-23 14:25:41,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:41,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:43,335 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2022-11-23 14:25:43,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:43,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806810861] [2022-11-23 14:25:43,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806810861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:43,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:25:43,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:25:43,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143637386] [2022-11-23 14:25:43,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:43,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:25:43,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:43,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:25:43,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:25:43,337 INFO L87 Difference]: Start difference. First operand 56193 states and 81206 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-23 14:25:45,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:56,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:56,212 INFO L93 Difference]: Finished difference Result 56203 states and 81215 transitions. [2022-11-23 14:25:56,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:25:56,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 199 [2022-11-23 14:25:56,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:56,439 INFO L225 Difference]: With dead ends: 56203 [2022-11-23 14:25:56,440 INFO L226 Difference]: Without dead ends: 56201 [2022-11-23 14:25:56,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:25:56,466 INFO L413 NwaCegarLoop]: 3824 mSDtfsCounter, 4198 mSDsluCounter, 7622 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4213 SdHoareTripleChecker+Valid, 11446 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:56,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4213 Valid, 11446 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1340 Invalid, 1 Unknown, 0 Unchecked, 10.5s Time] [2022-11-23 14:25:56,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56201 states. [2022-11-23 14:25:59,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56201 to 56201. [2022-11-23 14:25:59,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56201 states, 32452 states have (on average 1.2664858868482682) internal successors, (41100), 33936 states have internal predecessors, (41100), 19801 states have call successors, (19801), 4055 states have call predecessors, (19801), 3945 states have return successors, (20311), 19168 states have call predecessors, (20311), 19795 states have call successors, (20311) [2022-11-23 14:25:59,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56201 states to 56201 states and 81212 transitions. [2022-11-23 14:25:59,697 INFO L78 Accepts]: Start accepts. Automaton has 56201 states and 81212 transitions. Word has length 199 [2022-11-23 14:25:59,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:59,697 INFO L495 AbstractCegarLoop]: Abstraction has 56201 states and 81212 transitions. [2022-11-23 14:25:59,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-23 14:25:59,698 INFO L276 IsEmpty]: Start isEmpty. Operand 56201 states and 81212 transitions. [2022-11-23 14:25:59,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-11-23 14:25:59,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:59,701 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 6, 6, 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] [2022-11-23 14:25:59,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 14:25:59,701 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)] === [2022-11-23 14:25:59,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:59,702 INFO L85 PathProgramCache]: Analyzing trace with hash -50942734, now seen corresponding path program 1 times [2022-11-23 14:25:59,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:59,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900262697] [2022-11-23 14:25:59,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:59,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:26:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:26:01,514 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 709 trivial. 0 not checked. [2022-11-23 14:26:01,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:26:01,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900262697] [2022-11-23 14:26:01,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900262697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:26:01,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:26:01,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:26:01,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875739155] [2022-11-23 14:26:01,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:26:01,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:26:01,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:26:01,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:26:01,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:26:01,516 INFO L87 Difference]: Start difference. First operand 56201 states and 81212 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-23 14:26:03,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:26:13,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:26:13,816 INFO L93 Difference]: Finished difference Result 56211 states and 81221 transitions. [2022-11-23 14:26:13,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:26:13,817 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 204 [2022-11-23 14:26:13,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:26:13,993 INFO L225 Difference]: With dead ends: 56211 [2022-11-23 14:26:13,993 INFO L226 Difference]: Without dead ends: 56209 [2022-11-23 14:26:14,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:26:14,012 INFO L413 NwaCegarLoop]: 3824 mSDtfsCounter, 4198 mSDsluCounter, 7622 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4212 SdHoareTripleChecker+Valid, 11446 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:26:14,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4212 Valid, 11446 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1340 Invalid, 1 Unknown, 0 Unchecked, 9.8s Time] [2022-11-23 14:26:14,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56209 states. [2022-11-23 14:26:17,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56209 to 56209. [2022-11-23 14:26:17,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56209 states, 32458 states have (on average 1.2664366257933328) internal successors, (41106), 33942 states have internal predecessors, (41106), 19801 states have call successors, (19801), 4057 states have call predecessors, (19801), 3947 states have return successors, (20311), 19168 states have call predecessors, (20311), 19795 states have call successors, (20311) [2022-11-23 14:26:17,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56209 states to 56209 states and 81218 transitions. [2022-11-23 14:26:17,358 INFO L78 Accepts]: Start accepts. Automaton has 56209 states and 81218 transitions. Word has length 204 [2022-11-23 14:26:17,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:26:17,359 INFO L495 AbstractCegarLoop]: Abstraction has 56209 states and 81218 transitions. [2022-11-23 14:26:17,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-23 14:26:17,359 INFO L276 IsEmpty]: Start isEmpty. Operand 56209 states and 81218 transitions. [2022-11-23 14:26:17,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-23 14:26:17,360 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:26:17,361 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 4, 4, 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] [2022-11-23 14:26:17,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 14:26:17,361 INFO L420 AbstractCegarLoop]: === Iteration 11 === 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)] === [2022-11-23 14:26:17,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:26:17,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1759015390, now seen corresponding path program 1 times [2022-11-23 14:26:17,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:26:17,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706994893] [2022-11-23 14:26:17,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:26:17,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:26:17,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:26:18,467 INFO L134 CoverageAnalysis]: Checked inductivity of 657 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 654 trivial. 0 not checked. [2022-11-23 14:26:18,467 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:26:18,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706994893] [2022-11-23 14:26:18,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706994893] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:26:18,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:26:18,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:26:18,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569110981] [2022-11-23 14:26:18,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:26:18,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:26:18,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:26:18,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:26:18,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:26:18,469 INFO L87 Difference]: Start difference. First operand 56209 states and 81218 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-23 14:26:20,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:26:32,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:26:32,669 INFO L93 Difference]: Finished difference Result 130623 states and 188334 transitions. [2022-11-23 14:26:32,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:26:32,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 194 [2022-11-23 14:26:32,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:26:33,110 INFO L225 Difference]: With dead ends: 130623 [2022-11-23 14:26:33,111 INFO L226 Difference]: Without dead ends: 74477 [2022-11-23 14:26:33,271 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 [2022-11-23 14:26:33,272 INFO L413 NwaCegarLoop]: 5921 mSDtfsCounter, 2448 mSDsluCounter, 3782 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2448 SdHoareTripleChecker+Valid, 9703 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:26:33,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2448 Valid, 9703 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1223 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2022-11-23 14:26:33,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74477 states.