./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-dec-tulip-de4x5.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb15794f-7780-4c48-b3b5-ca24e2ebb491/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb15794f-7780-4c48-b3b5-ca24e2ebb491/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb15794f-7780-4c48-b3b5-ca24e2ebb491/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb15794f-7780-4c48-b3b5-ca24e2ebb491/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb15794f-7780-4c48-b3b5-ca24e2ebb491/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb15794f-7780-4c48-b3b5-ca24e2ebb491/bin/utaipan-eEHZpOm5b7 --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 52f53de973aa03e2a9eaadeeb26ce30c3104ed671c54a416d14fc4c2bdab8bd9 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:13:39,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:13:39,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:13:39,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:13:39,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:13:39,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:13:39,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:13:39,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:13:39,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:13:39,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:13:39,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:13:39,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:13:39,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:13:39,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:13:39,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:13:39,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:13:39,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:13:39,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:13:39,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:13:39,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:13:39,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:13:39,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:13:39,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:13:39,612 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:13:39,616 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:13:39,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:13:39,617 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:13:39,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:13:39,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:13:39,620 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:13:39,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:13:39,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:13:39,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:13:39,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:13:39,630 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:13:39,631 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:13:39,632 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:13:39,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:13:39,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:13:39,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:13:39,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:13:39,636 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb15794f-7780-4c48-b3b5-ca24e2ebb491/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 18:13:39,686 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:13:39,687 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:13:39,688 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:13:39,688 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:13:39,696 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:13:39,697 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:13:39,697 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:13:39,697 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:13:39,697 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:13:39,698 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:13:39,698 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:13:39,698 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:13:39,698 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:13:39,698 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:13:39,699 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:13:39,699 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:13:39,699 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:13:39,699 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:13:39,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:13:39,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:13:39,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:13:39,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:13:39,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:13:39,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:13:39,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:13:39,702 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:13:39,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:13:39,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:13:39,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:13:39,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:13:39,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:13:39,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:13:39,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:13:39,704 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:13:39,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:13:39,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:13:39,705 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:13:39,705 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:13:39,705 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_fb15794f-7780-4c48-b3b5-ca24e2ebb491/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb15794f-7780-4c48-b3b5-ca24e2ebb491/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52f53de973aa03e2a9eaadeeb26ce30c3104ed671c54a416d14fc4c2bdab8bd9 [2021-11-25 18:13:40,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:13:40,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:13:40,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:13:40,087 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:13:40,088 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:13:40,090 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb15794f-7780-4c48-b3b5-ca24e2ebb491/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-25 18:13:40,198 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb15794f-7780-4c48-b3b5-ca24e2ebb491/bin/utaipan-eEHZpOm5b7/data/d9b240073/5e902d29e8004fd596801ca77d1728f8/FLAG422e6197c [2021-11-25 18:13:41,405 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:13:41,407 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb15794f-7780-4c48-b3b5-ca24e2ebb491/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-25 18:13:41,483 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb15794f-7780-4c48-b3b5-ca24e2ebb491/bin/utaipan-eEHZpOm5b7/data/d9b240073/5e902d29e8004fd596801ca77d1728f8/FLAG422e6197c [2021-11-25 18:13:41,565 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb15794f-7780-4c48-b3b5-ca24e2ebb491/bin/utaipan-eEHZpOm5b7/data/d9b240073/5e902d29e8004fd596801ca77d1728f8 [2021-11-25 18:13:41,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:13:41,571 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:13:41,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:13:41,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:13:41,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:13:41,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:13:41" (1/1) ... [2021-11-25 18:13:41,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b4040f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:41, skipping insertion in model container [2021-11-25 18:13:41,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:13:41" (1/1) ... [2021-11-25 18:13:41,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:13:41,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:13:47,329 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb15794f-7780-4c48-b3b5-ca24e2ebb491/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[479863,479876] [2021-11-25 18:13:47,339 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb15794f-7780-4c48-b3b5-ca24e2ebb491/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480032,480045] [2021-11-25 18:13:47,340 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb15794f-7780-4c48-b3b5-ca24e2ebb491/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480199,480212] [2021-11-25 18:13:47,341 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb15794f-7780-4c48-b3b5-ca24e2ebb491/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480367,480380] [2021-11-25 18:13:47,389 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:13:47,445 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:13:48,085 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb15794f-7780-4c48-b3b5-ca24e2ebb491/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[479863,479876] [2021-11-25 18:13:48,086 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb15794f-7780-4c48-b3b5-ca24e2ebb491/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480032,480045] [2021-11-25 18:13:48,087 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb15794f-7780-4c48-b3b5-ca24e2ebb491/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480199,480212] [2021-11-25 18:13:48,087 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb15794f-7780-4c48-b3b5-ca24e2ebb491/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480367,480380] [2021-11-25 18:13:48,095 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:13:48,371 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:13:48,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:48 WrapperNode [2021-11-25 18:13:48,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:13:48,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:13:48,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:13:48,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:13:48,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:48" (1/1) ... [2021-11-25 18:13:48,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:48" (1/1) ... [2021-11-25 18:13:49,044 INFO L137 Inliner]: procedures = 544, calls = 4122, calls flagged for inlining = 248, calls inlined = 231, statements flattened = 8578 [2021-11-25 18:13:49,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:13:49,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:13:49,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:13:49,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:13:49,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:48" (1/1) ... [2021-11-25 18:13:49,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:48" (1/1) ... [2021-11-25 18:13:49,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:48" (1/1) ... [2021-11-25 18:13:49,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:48" (1/1) ... [2021-11-25 18:13:49,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:48" (1/1) ... [2021-11-25 18:13:49,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:48" (1/1) ... [2021-11-25 18:13:49,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:48" (1/1) ... [2021-11-25 18:13:49,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:13:49,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:13:49,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:13:49,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:13:49,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:48" (1/1) ... [2021-11-25 18:13:49,740 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:13:49,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb15794f-7780-4c48-b3b5-ca24e2ebb491/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:13:49,799 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb15794f-7780-4c48-b3b5-ca24e2ebb491/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:13:49,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb15794f-7780-4c48-b3b5-ca24e2ebb491/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:13:49,859 INFO L130 BoogieDeclarations]: Found specification of procedure disable_ast [2021-11-25 18:13:49,860 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_ast [2021-11-25 18:13:49,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 18:13:49,860 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 18:13:49,861 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-25 18:13:49,861 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-25 18:13:49,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 18:13:49,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 18:13:49,948 INFO L130 BoogieDeclarations]: Found specification of procedure type4_infoblock [2021-11-25 18:13:49,948 INFO L138 BoogieDeclarations]: Found implementation of procedure type4_infoblock [2021-11-25 18:13:49,948 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_put_cache [2021-11-25 18:13:49,949 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_put_cache [2021-11-25 18:13:49,949 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-25 18:13:49,949 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-25 18:13:49,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_de4x5_private [2021-11-25 18:13:49,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_de4x5_private [2021-11-25 18:13:49,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 18:13:49,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 18:13:49,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_de4x5_private [2021-11-25 18:13:49,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_de4x5_private [2021-11-25 18:13:49,950 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_mii [2021-11-25 18:13:49,950 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_mii [2021-11-25 18:13:49,950 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_switch_mac_port [2021-11-25 18:13:49,950 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_switch_mac_port [2021-11-25 18:13:49,950 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 18:13:49,950 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 18:13:49,950 INFO L130 BoogieDeclarations]: Found specification of procedure srom_latch [2021-11-25 18:13:49,950 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_latch [2021-11-25 18:13:49,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2021-11-25 18:13:49,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2021-11-25 18:13:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 18:13:49,951 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 18:13:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure build_setup_frame [2021-11-25 18:13:49,951 INFO L138 BoogieDeclarations]: Found implementation of procedure build_setup_frame [2021-11-25 18:13:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure type2_infoblock [2021-11-25 18:13:49,951 INFO L138 BoogieDeclarations]: Found implementation of procedure type2_infoblock [2021-11-25 18:13:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure type0_infoblock [2021-11-25 18:13:49,952 INFO L138 BoogieDeclarations]: Found implementation of procedure type0_infoblock [2021-11-25 18:13:49,952 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-11-25 18:13:49,952 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-11-25 18:13:49,952 INFO L130 BoogieDeclarations]: Found specification of procedure DevicePresent [2021-11-25 18:13:49,952 INFO L138 BoogieDeclarations]: Found implementation of procedure DevicePresent [2021-11-25 18:13:49,952 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-11-25 18:13:49,952 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-11-25 18:13:49,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 18:13:49,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 18:13:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure dc21143_infoleaf [2021-11-25 18:13:49,953 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21143_infoleaf [2021-11-25 18:13:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2021-11-25 18:13:49,953 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2021-11-25 18:13:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 18:13:49,953 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 18:13:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 18:13:49,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 18:13:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-11-25 18:13:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_sw_reset [2021-11-25 18:13:49,954 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_sw_reset [2021-11-25 18:13:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:13:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-11-25 18:13:49,954 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-11-25 18:13:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-25 18:13:49,955 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-25 18:13:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-11-25 18:13:49,955 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-11-25 18:13:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure is_spd_100 [2021-11-25 18:13:49,955 INFO L138 BoogieDeclarations]: Found implementation of procedure is_spd_100 [2021-11-25 18:13:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 18:13:49,955 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 18:13:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 18:13:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-25 18:13:49,956 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-25 18:13:49,960 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_mii [2021-11-25 18:13:49,961 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_mii [2021-11-25 18:13:49,961 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_rx_buffs [2021-11-25 18:13:49,961 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_rx_buffs [2021-11-25 18:13:49,961 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 18:13:49,961 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 18:13:49,962 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-25 18:13:49,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-25 18:13:49,963 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-25 18:13:49,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-25 18:13:49,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 18:13:49,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 18:13:49,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 18:13:49,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:13:49,964 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 18:13:49,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 18:13:49,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 18:13:49,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 18:13:49,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-25 18:13:49,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-25 18:13:49,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 18:13:49,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 18:13:49,966 INFO L130 BoogieDeclarations]: Found specification of procedure ping_media [2021-11-25 18:13:49,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ping_media [2021-11-25 18:13:49,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 18:13:49,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 18:13:49,967 INFO L130 BoogieDeclarations]: Found specification of procedure srom_autoconf [2021-11-25 18:13:49,967 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_autoconf [2021-11-25 18:13:49,968 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 18:13:49,968 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 18:13:49,968 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-25 18:13:49,968 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-25 18:13:49,969 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_tx [2021-11-25 18:13:49,969 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_tx [2021-11-25 18:13:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-25 18:13:49,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-25 18:13:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-25 18:13:49,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-25 18:13:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure srom_rd [2021-11-25 18:13:49,976 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_rd [2021-11-25 18:13:49,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:13:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 18:13:49,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 18:13:49,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 18:13:49,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 18:13:49,979 INFO L130 BoogieDeclarations]: Found specification of procedure SetMulticastFilter [2021-11-25 18:13:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMulticastFilter [2021-11-25 18:13:49,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:13:49,979 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ioctl [2021-11-25 18:13:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ioctl [2021-11-25 18:13:49,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 18:13:49,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 18:13:49,980 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 18:13:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 18:13:49,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:13:49,981 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:13:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:13:49,981 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_srom [2021-11-25 18:13:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_srom [2021-11-25 18:13:49,982 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-25 18:13:49,982 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-25 18:13:49,982 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:13:49,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:13:49,982 INFO L130 BoogieDeclarations]: Found specification of procedure mii_swap [2021-11-25 18:13:49,982 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_swap [2021-11-25 18:13:49,983 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_reset_phy [2021-11-25 18:13:49,983 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_reset_phy [2021-11-25 18:13:49,983 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_putb_cache [2021-11-25 18:13:49,983 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_putb_cache [2021-11-25 18:13:49,983 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-25 18:13:49,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-25 18:13:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure dc21142_infoleaf [2021-11-25 18:13:49,984 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21142_infoleaf [2021-11-25 18:13:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 18:13:49,984 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 18:13:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_stats [2021-11-25 18:13:49,985 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_stats [2021-11-25 18:13:49,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 18:13:49,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 18:13:49,985 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-25 18:13:49,985 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-25 18:13:49,985 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init_connection [2021-11-25 18:13:49,986 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init_connection [2021-11-25 18:13:49,986 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wr [2021-11-25 18:13:49,986 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wr [2021-11-25 18:13:49,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:13:49,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:13:49,987 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_state [2021-11-25 18:13:49,987 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_state [2021-11-25 18:13:49,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-25 18:13:49,987 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-25 18:13:49,987 INFO L130 BoogieDeclarations]: Found specification of procedure type3_infoblock [2021-11-25 18:13:49,987 INFO L138 BoogieDeclarations]: Found implementation of procedure type3_infoblock [2021-11-25 18:13:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 18:13:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 18:13:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 18:13:49,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 18:13:49,989 INFO L130 BoogieDeclarations]: Found specification of procedure reset_init_sia [2021-11-25 18:13:49,989 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_init_sia [2021-11-25 18:13:49,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 18:13:49,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 18:13:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-25 18:13:49,990 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-25 18:13:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_alloc_rx_buff [2021-11-25 18:13:49,991 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_alloc_rx_buff [2021-11-25 18:13:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure test_for_100Mb [2021-11-25 18:13:49,991 INFO L138 BoogieDeclarations]: Found implementation of procedure test_for_100Mb [2021-11-25 18:13:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-25 18:13:49,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-25 18:13:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure type5_infoblock [2021-11-25 18:13:49,992 INFO L138 BoogieDeclarations]: Found implementation of procedure type5_infoblock [2021-11-25 18:13:49,993 INFO L130 BoogieDeclarations]: Found specification of procedure load_packet [2021-11-25 18:13:49,993 INFO L138 BoogieDeclarations]: Found implementation of procedure load_packet [2021-11-25 18:13:49,993 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140m_autoconf [2021-11-25 18:13:49,993 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140m_autoconf [2021-11-25 18:13:49,993 INFO L130 BoogieDeclarations]: Found specification of procedure is_100_up [2021-11-25 18:13:49,994 INFO L138 BoogieDeclarations]: Found implementation of procedure is_100_up [2021-11-25 18:13:49,994 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_open [2021-11-25 18:13:49,994 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_open [2021-11-25 18:13:49,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 18:13:49,994 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 18:13:49,994 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ta [2021-11-25 18:13:49,995 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ta [2021-11-25 18:13:49,995 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 18:13:49,995 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 18:13:49,995 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_autoconf [2021-11-25 18:13:49,995 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_autoconf [2021-11-25 18:13:49,995 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-11-25 18:13:49,997 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-11-25 18:13:49,998 INFO L130 BoogieDeclarations]: Found specification of procedure test_mii_reg [2021-11-25 18:13:49,998 INFO L138 BoogieDeclarations]: Found implementation of procedure test_mii_reg [2021-11-25 18:13:49,998 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_cache_state [2021-11-25 18:13:49,998 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_cache_state [2021-11-25 18:13:49,998 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-25 18:13:49,998 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-25 18:13:49,999 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_pci_remove [2021-11-25 18:13:49,999 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_pci_remove [2021-11-25 18:13:49,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:13:49,999 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_media [2021-11-25 18:13:49,999 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_media [2021-11-25 18:13:50,000 INFO L130 BoogieDeclarations]: Found specification of procedure autoconf_media [2021-11-25 18:13:50,000 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconf_media [2021-11-25 18:13:50,000 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_autoconf [2021-11-25 18:13:50,000 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_autoconf [2021-11-25 18:13:50,000 INFO L130 BoogieDeclarations]: Found specification of procedure mii_rd [2021-11-25 18:13:50,000 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_rd [2021-11-25 18:13:50,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:13:50,001 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ast [2021-11-25 18:13:50,001 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ast [2021-11-25 18:13:50,001 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2021-11-25 18:13:50,001 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2021-11-25 18:13:50,001 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2021-11-25 18:13:50,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2021-11-25 18:13:50,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 18:13:50,002 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-25 18:13:50,002 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-25 18:13:50,002 INFO L130 BoogieDeclarations]: Found specification of procedure is_10_up [2021-11-25 18:13:50,002 INFO L138 BoogieDeclarations]: Found implementation of procedure is_10_up [2021-11-25 18:13:50,003 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 18:13:50,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 18:13:50,003 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-25 18:13:50,008 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-25 18:13:50,008 INFO L130 BoogieDeclarations]: Found specification of procedure is_anc_capable [2021-11-25 18:13:50,008 INFO L138 BoogieDeclarations]: Found implementation of procedure is_anc_capable [2021-11-25 18:13:50,008 INFO L130 BoogieDeclarations]: Found specification of procedure type1_infoblock [2021-11-25 18:13:50,008 INFO L138 BoogieDeclarations]: Found implementation of procedure type1_infoblock [2021-11-25 18:13:50,008 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 18:13:50,009 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 18:13:50,009 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-25 18:13:50,009 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-25 18:13:50,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-25 18:13:50,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-25 18:13:50,009 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140_infoleaf [2021-11-25 18:13:50,009 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140_infoleaf [2021-11-25 18:13:50,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 18:13:50,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 18:13:50,009 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-11-25 18:13:50,010 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-11-25 18:13:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_queue_pkt [2021-11-25 18:13:50,010 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_queue_pkt [2021-11-25 18:13:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure test_media [2021-11-25 18:13:50,010 INFO L138 BoogieDeclarations]: Found implementation of procedure test_media [2021-11-25 18:13:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buffs [2021-11-25 18:13:50,010 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buffs [2021-11-25 18:13:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2021-11-25 18:13:50,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2021-11-25 18:13:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-25 18:13:50,011 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-25 18:13:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-25 18:13:50,011 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-25 18:13:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 18:13:50,011 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 18:13:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init [2021-11-25 18:13:50,011 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init [2021-11-25 18:13:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-25 18:13:50,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-25 18:13:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_73 [2021-11-25 18:13:50,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_73 [2021-11-25 18:13:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_infoleaf [2021-11-25 18:13:50,012 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_infoleaf [2021-11-25 18:13:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:13:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure srom_exec [2021-11-25 18:13:50,012 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_exec [2021-11-25 18:13:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 18:13:50,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 18:13:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure gep_wr [2021-11-25 18:13:50,013 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_wr [2021-11-25 18:13:50,013 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-25 18:13:50,013 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-25 18:13:50,013 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_srom [2021-11-25 18:13:50,013 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_srom [2021-11-25 18:13:50,013 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-25 18:13:50,013 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-25 18:13:50,013 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_cache [2021-11-25 18:13:50,013 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_cache [2021-11-25 18:13:50,013 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_suspect_state [2021-11-25 18:13:50,014 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_suspect_state [2021-11-25 18:13:50,014 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_mii [2021-11-25 18:13:50,014 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_mii [2021-11-25 18:13:50,014 INFO L130 BoogieDeclarations]: Found specification of procedure compact_infoblock [2021-11-25 18:13:50,014 INFO L138 BoogieDeclarations]: Found implementation of procedure compact_infoblock [2021-11-25 18:13:50,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 18:13:50,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 18:13:50,014 INFO L130 BoogieDeclarations]: Found specification of procedure gep_rd [2021-11-25 18:13:50,014 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_rd [2021-11-25 18:13:50,014 INFO L130 BoogieDeclarations]: Found specification of procedure mii_address [2021-11-25 18:13:50,014 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_address [2021-11-25 18:13:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buff [2021-11-25 18:13:50,015 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buff [2021-11-25 18:13:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_setup_intr [2021-11-25 18:13:50,015 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_setup_intr [2021-11-25 18:13:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_save_skbs [2021-11-25 18:13:50,015 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_save_skbs [2021-11-25 18:13:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure dc2114x_autoconf [2021-11-25 18:13:50,015 INFO L138 BoogieDeclarations]: Found implementation of procedure dc2114x_autoconf [2021-11-25 18:13:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-25 18:13:50,015 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-25 18:13:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure srom_map_media [2021-11-25 18:13:50,016 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_map_media [2021-11-25 18:13:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_strncmp [2021-11-25 18:13:50,016 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_strncmp [2021-11-25 18:13:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-11-25 18:13:50,016 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-11-25 18:13:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_close [2021-11-25 18:13:50,016 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_close [2021-11-25 18:13:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure yawn [2021-11-25 18:13:50,017 INFO L138 BoogieDeclarations]: Found implementation of procedure yawn [2021-11-25 18:13:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wdata [2021-11-25 18:13:50,017 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wdata [2021-11-25 18:13:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:13:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 18:13:50,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 18:13:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-25 18:13:51,482 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:13:51,490 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:13:52,041 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 18:14:09,485 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 18:14:09,853 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:14:14,141 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:14:14,142 INFO L301 CfgBuilder]: Removed 17 assume(true) statements. [2021-11-25 18:14:14,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:14:14 BoogieIcfgContainer [2021-11-25 18:14:14,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:14:14,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:14:14,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:14:14,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:14:14,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:13:41" (1/3) ... [2021-11-25 18:14:14,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236442c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:14:14, skipping insertion in model container [2021-11-25 18:14:14,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:48" (2/3) ... [2021-11-25 18:14:14,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236442c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:14:14, skipping insertion in model container [2021-11-25 18:14:14,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:14:14" (3/3) ... [2021-11-25 18:14:14,164 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-25 18:14:14,179 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:14:14,181 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-25 18:14:14,277 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:14:14,299 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:14:14,302 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-25 18:14:14,416 INFO L276 IsEmpty]: Start isEmpty. Operand has 3050 states, 1915 states have (on average 1.348302872062663) internal successors, (2582), 1977 states have internal predecessors, (2582), 996 states have call successors, (996), 153 states have call predecessors, (996), 152 states have return successors, (989), 975 states have call predecessors, (989), 989 states have call successors, (989) [2021-11-25 18:14:14,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-25 18:14:14,446 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:14:14,447 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:14:14,448 INFO L402 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)] === [2021-11-25 18:14:14,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:14:14,455 INFO L85 PathProgramCache]: Analyzing trace with hash -69639802, now seen corresponding path program 1 times [2021-11-25 18:14:14,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:14:14,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037386922] [2021-11-25 18:14:14,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:14:14,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:14:15,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:14:15,413 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2021-11-25 18:14:15,414 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:14:15,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037386922] [2021-11-25 18:14:15,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037386922] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:14:15,415 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:14:15,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:14:15,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789517677] [2021-11-25 18:14:15,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:14:15,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:14:15,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:14:15,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:14:15,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:14:15,474 INFO L87 Difference]: Start difference. First operand has 3050 states, 1915 states have (on average 1.348302872062663) internal successors, (2582), 1977 states have internal predecessors, (2582), 996 states have call successors, (996), 153 states have call predecessors, (996), 152 states have return successors, (989), 975 states have call predecessors, (989), 989 states have call successors, (989) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-25 18:14:17,563 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:14:25,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:14:25,195 INFO L93 Difference]: Finished difference Result 8932 states and 13716 transitions. [2021-11-25 18:14:25,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:14:25,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 167 [2021-11-25 18:14:25,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:14:25,313 INFO L225 Difference]: With dead ends: 8932 [2021-11-25 18:14:25,313 INFO L226 Difference]: Without dead ends: 5899 [2021-11-25 18:14:25,372 INFO L932 BasicCegarLoop]: 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 [2021-11-25 18:14:25,377 INFO L933 BasicCegarLoop]: 4868 mSDtfsCounter, 4360 mSDsluCounter, 4431 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4360 SdHoareTripleChecker+Valid, 8768 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:14:25,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4360 Valid, 8768 Invalid, 1084 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1080 Invalid, 1 Unknown, 0 Unchecked, 9.0s Time] [2021-11-25 18:14:25,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5899 states. [2021-11-25 18:14:26,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5899 to 5895. [2021-11-25 18:14:26,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5895 states, 3686 states have (on average 1.3464460119370592) internal successors, (4963), 3778 states have internal predecessors, (4963), 1905 states have call successors, (1905), 302 states have call predecessors, (1905), 301 states have return successors, (1902), 1874 states have call predecessors, (1902), 1902 states have call successors, (1902) [2021-11-25 18:14:26,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5895 states to 5895 states and 8770 transitions. [2021-11-25 18:14:26,277 INFO L78 Accepts]: Start accepts. Automaton has 5895 states and 8770 transitions. Word has length 167 [2021-11-25 18:14:26,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:14:26,279 INFO L470 AbstractCegarLoop]: Abstraction has 5895 states and 8770 transitions. [2021-11-25 18:14:26,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-25 18:14:26,280 INFO L276 IsEmpty]: Start isEmpty. Operand 5895 states and 8770 transitions. [2021-11-25 18:14:26,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-25 18:14:26,301 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:14:26,301 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:14:26,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:14:26,303 INFO L402 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)] === [2021-11-25 18:14:26,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:14:26,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1259785515, now seen corresponding path program 1 times [2021-11-25 18:14:26,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:14:26,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052908605] [2021-11-25 18:14:26,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:14:26,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:14:26,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:14:26,805 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2021-11-25 18:14:26,806 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:14:26,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052908605] [2021-11-25 18:14:26,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052908605] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:14:26,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:14:26,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:14:26,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756570268] [2021-11-25 18:14:26,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:14:26,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:14:26,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:14:26,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:14:26,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:14:26,814 INFO L87 Difference]: Start difference. First operand 5895 states and 8770 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-25 18:14:28,868 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:14:36,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:14:36,661 INFO L93 Difference]: Finished difference Result 17335 states and 26106 transitions. [2021-11-25 18:14:36,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:14:36,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 173 [2021-11-25 18:14:36,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:14:36,810 INFO L225 Difference]: With dead ends: 17335 [2021-11-25 18:14:36,810 INFO L226 Difference]: Without dead ends: 11471 [2021-11-25 18:14:36,875 INFO L932 BasicCegarLoop]: 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 [2021-11-25 18:14:36,877 INFO L933 BasicCegarLoop]: 4928 mSDtfsCounter, 4287 mSDsluCounter, 4475 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4287 SdHoareTripleChecker+Valid, 8879 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:14:36,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4287 Valid, 8879 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1075 Invalid, 1 Unknown, 0 Unchecked, 9.0s Time] [2021-11-25 18:14:36,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11471 states. [2021-11-25 18:14:37,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11471 to 11441. [2021-11-25 18:14:37,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11441 states, 7159 states have (on average 1.3476742561810309) internal successors, (9648), 7347 states have internal predecessors, (9648), 3684 states have call successors, (3684), 600 states have call predecessors, (3684), 595 states have return successors, (4005), 3613 states have call predecessors, (4005), 3681 states have call successors, (4005) [2021-11-25 18:14:37,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11441 states to 11441 states and 17337 transitions. [2021-11-25 18:14:37,969 INFO L78 Accepts]: Start accepts. Automaton has 11441 states and 17337 transitions. Word has length 173 [2021-11-25 18:14:37,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:14:37,973 INFO L470 AbstractCegarLoop]: Abstraction has 11441 states and 17337 transitions. [2021-11-25 18:14:37,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-25 18:14:37,976 INFO L276 IsEmpty]: Start isEmpty. Operand 11441 states and 17337 transitions. [2021-11-25 18:14:37,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-25 18:14:37,985 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:14:37,985 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:14:37,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:14:37,986 INFO L402 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)] === [2021-11-25 18:14:37,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:14:37,987 INFO L85 PathProgramCache]: Analyzing trace with hash -752069096, now seen corresponding path program 1 times [2021-11-25 18:14:37,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:14:37,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981032168] [2021-11-25 18:14:37,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:14:37,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:14:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:14:38,410 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2021-11-25 18:14:38,410 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:14:38,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981032168] [2021-11-25 18:14:38,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981032168] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:14:38,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:14:38,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:14:38,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910074079] [2021-11-25 18:14:38,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:14:38,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:14:38,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:14:38,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:14:38,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:14:38,416 INFO L87 Difference]: Start difference. First operand 11441 states and 17337 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2021-11-25 18:14:40,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:14:48,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:14:48,690 INFO L93 Difference]: Finished difference Result 34153 states and 51755 transitions. [2021-11-25 18:14:48,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:14:48,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 181 [2021-11-25 18:14:48,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:14:48,932 INFO L225 Difference]: With dead ends: 34153 [2021-11-25 18:14:48,933 INFO L226 Difference]: Without dead ends: 22743 [2021-11-25 18:14:49,028 INFO L932 BasicCegarLoop]: 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 [2021-11-25 18:14:49,030 INFO L933 BasicCegarLoop]: 4860 mSDtfsCounter, 4341 mSDsluCounter, 4406 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4341 SdHoareTripleChecker+Valid, 8747 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:14:49,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4341 Valid, 8747 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1098 Invalid, 1 Unknown, 0 Unchecked, 9.4s Time] [2021-11-25 18:14:49,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22743 states. [2021-11-25 18:14:50,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22743 to 22717. [2021-11-25 18:14:50,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22717 states, 14227 states have (on average 1.3464539256343573) internal successors, (19156), 14601 states have internal predecessors, (19156), 7298 states have call successors, (7298), 1198 states have call predecessors, (7298), 1189 states have return successors, (7955), 7157 states have call predecessors, (7955), 7295 states have call successors, (7955) [2021-11-25 18:14:50,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22717 states to 22717 states and 34409 transitions. [2021-11-25 18:14:50,938 INFO L78 Accepts]: Start accepts. Automaton has 22717 states and 34409 transitions. Word has length 181 [2021-11-25 18:14:50,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:14:50,939 INFO L470 AbstractCegarLoop]: Abstraction has 22717 states and 34409 transitions. [2021-11-25 18:14:50,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2021-11-25 18:14:50,939 INFO L276 IsEmpty]: Start isEmpty. Operand 22717 states and 34409 transitions. [2021-11-25 18:14:50,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-25 18:14:50,945 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:14:50,946 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:14:50,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 18:14:50,947 INFO L402 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)] === [2021-11-25 18:14:50,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:14:50,947 INFO L85 PathProgramCache]: Analyzing trace with hash 748037061, now seen corresponding path program 1 times [2021-11-25 18:14:50,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:14:50,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895540066] [2021-11-25 18:14:50,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:14:50,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:14:51,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:14:51,235 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2021-11-25 18:14:51,235 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:14:51,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895540066] [2021-11-25 18:14:51,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895540066] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:14:51,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:14:51,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:14:51,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671515067] [2021-11-25 18:14:51,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:14:51,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:14:51,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:14:51,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:14:51,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:14:51,239 INFO L87 Difference]: Start difference. First operand 22717 states and 34409 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2021-11-25 18:14:53,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:14:59,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:14:59,900 INFO L93 Difference]: Finished difference Result 67873 states and 102799 transitions. [2021-11-25 18:14:59,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:14:59,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 183 [2021-11-25 18:14:59,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:15:00,256 INFO L225 Difference]: With dead ends: 67873 [2021-11-25 18:15:00,256 INFO L226 Difference]: Without dead ends: 45187 [2021-11-25 18:15:00,636 INFO L932 BasicCegarLoop]: 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 [2021-11-25 18:15:00,639 INFO L933 BasicCegarLoop]: 4859 mSDtfsCounter, 4339 mSDsluCounter, 4406 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4339 SdHoareTripleChecker+Valid, 8746 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:15:00,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4339 Valid, 8746 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1098 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2021-11-25 18:15:00,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45187 states. [2021-11-25 18:15:03,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45187 to 45161. [2021-11-25 18:15:03,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45161 states, 28295 states have (on average 1.3449726100017672) internal successors, (38056), 29041 states have internal predecessors, (38056), 14486 states have call successors, (14486), 2394 states have call predecessors, (14486), 2377 states have return successors, (15819), 14205 states have call predecessors, (15819), 14483 states have call successors, (15819) [2021-11-25 18:15:04,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45161 states to 45161 states and 68361 transitions. [2021-11-25 18:15:04,343 INFO L78 Accepts]: Start accepts. Automaton has 45161 states and 68361 transitions. Word has length 183 [2021-11-25 18:15:04,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:15:04,345 INFO L470 AbstractCegarLoop]: Abstraction has 45161 states and 68361 transitions. [2021-11-25 18:15:04,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2021-11-25 18:15:04,345 INFO L276 IsEmpty]: Start isEmpty. Operand 45161 states and 68361 transitions. [2021-11-25 18:15:04,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-25 18:15:04,351 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:15:04,352 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:15:04,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 18:15:04,352 INFO L402 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)] === [2021-11-25 18:15:04,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:15:04,353 INFO L85 PathProgramCache]: Analyzing trace with hash 2059079839, now seen corresponding path program 1 times [2021-11-25 18:15:04,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:15:04,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690899143] [2021-11-25 18:15:04,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:15:04,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:15:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:15:04,642 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2021-11-25 18:15:04,642 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:15:04,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690899143] [2021-11-25 18:15:04,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690899143] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:15:04,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:15:04,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:15:04,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699250622] [2021-11-25 18:15:04,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:15:04,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:15:04,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:15:04,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:15:04,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:15:04,646 INFO L87 Difference]: Start difference. First operand 45161 states and 68361 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (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) [2021-11-25 18:15:06,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:15:15,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:15:15,508 INFO L93 Difference]: Finished difference Result 134989 states and 204319 transitions. [2021-11-25 18:15:15,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:15:15,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (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 182 [2021-11-25 18:15:15,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:15:16,090 INFO L225 Difference]: With dead ends: 134989 [2021-11-25 18:15:16,091 INFO L226 Difference]: Without dead ends: 89859 [2021-11-25 18:15:16,725 INFO L932 BasicCegarLoop]: 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 [2021-11-25 18:15:16,725 INFO L933 BasicCegarLoop]: 4859 mSDtfsCounter, 4340 mSDsluCounter, 4406 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4340 SdHoareTripleChecker+Valid, 8746 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:15:16,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4340 Valid, 8746 Invalid, 1106 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7 Valid, 1098 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2021-11-25 18:15:16,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89859 states. [2021-11-25 18:15:21,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89859 to 89833. [2021-11-25 18:15:21,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89833 states, 56295 states have (on average 1.3433519850786038) internal successors, (75624), 57785 states have internal predecessors, (75624), 28782 states have call successors, (28782), 4786 states have call predecessors, (28782), 4753 states have return successors, (31483), 28221 states have call predecessors, (31483), 28779 states have call successors, (31483) [2021-11-25 18:15:23,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89833 states to 89833 states and 135889 transitions. [2021-11-25 18:15:23,187 INFO L78 Accepts]: Start accepts. Automaton has 89833 states and 135889 transitions. Word has length 182 [2021-11-25 18:15:23,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:15:23,189 INFO L470 AbstractCegarLoop]: Abstraction has 89833 states and 135889 transitions. [2021-11-25 18:15:23,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (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) [2021-11-25 18:15:23,189 INFO L276 IsEmpty]: Start isEmpty. Operand 89833 states and 135889 transitions. [2021-11-25 18:15:23,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-25 18:15:23,195 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:15:23,196 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:15:23,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 18:15:23,196 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 18:15:23,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:15:23,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1050221668, now seen corresponding path program 1 times [2021-11-25 18:15:23,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:15:23,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825969889] [2021-11-25 18:15:23,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:15:23,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:15:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:15:23,488 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2021-11-25 18:15:23,489 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:15:23,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825969889] [2021-11-25 18:15:23,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825969889] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:15:23,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:15:23,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:15:23,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938155178] [2021-11-25 18:15:23,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:15:23,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:15:23,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:15:23,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:15:23,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:15:23,492 INFO L87 Difference]: Start difference. First operand 89833 states and 135889 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2021-11-25 18:15:25,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:15:38,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:15:38,135 INFO L93 Difference]: Finished difference Result 267757 states and 405019 transitions. [2021-11-25 18:15:38,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:15:38,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 184 [2021-11-25 18:15:38,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:15:39,357 INFO L225 Difference]: With dead ends: 267757 [2021-11-25 18:15:39,357 INFO L226 Difference]: Without dead ends: 177955 [2021-11-25 18:15:40,246 INFO L932 BasicCegarLoop]: 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 [2021-11-25 18:15:40,247 INFO L933 BasicCegarLoop]: 4859 mSDtfsCounter, 4338 mSDsluCounter, 4406 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4338 SdHoareTripleChecker+Valid, 8746 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:15:40,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4338 Valid, 8746 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1098 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2021-11-25 18:15:40,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177955 states. [2021-11-25 18:15:49,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177955 to 177881. [2021-11-25 18:15:49,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177881 states, 111491 states have (on average 1.341812343597241) internal successors, (149600), 114449 states have internal predecessors, (149600), 56936 states have call successors, (56936), 9518 states have call predecessors, (56936), 9451 states have return successors, (62397), 55819 states have call predecessors, (62397), 56933 states have call successors, (62397) [2021-11-25 18:15:52,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177881 states to 177881 states and 268933 transitions. [2021-11-25 18:15:52,489 INFO L78 Accepts]: Start accepts. Automaton has 177881 states and 268933 transitions. Word has length 184 [2021-11-25 18:15:52,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:15:52,490 INFO L470 AbstractCegarLoop]: Abstraction has 177881 states and 268933 transitions. [2021-11-25 18:15:52,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2021-11-25 18:15:52,491 INFO L276 IsEmpty]: Start isEmpty. Operand 177881 states and 268933 transitions. [2021-11-25 18:15:52,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-11-25 18:15:52,505 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:15:52,505 INFO L514 BasicCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:15:52,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 18:15:52,506 INFO L402 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)] === [2021-11-25 18:15:52,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:15:52,506 INFO L85 PathProgramCache]: Analyzing trace with hash 180677276, now seen corresponding path program 1 times [2021-11-25 18:15:52,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:15:52,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196759589] [2021-11-25 18:15:52,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:15:52,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:15:52,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:15:52,927 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 995 trivial. 0 not checked. [2021-11-25 18:15:52,927 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:15:52,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196759589] [2021-11-25 18:15:52,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196759589] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:15:52,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:15:52,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:15:52,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78384873] [2021-11-25 18:15:52,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:15:52,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:15:52,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:15:52,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:15:52,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:15:52,931 INFO L87 Difference]: Start difference. First operand 177881 states and 268933 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, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-25 18:15:54,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []