./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-oki-semi-pch_gbe-pch_gbe.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd6609-9d70-43f7-931e-c4f5ba2fee75/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd6609-9d70-43f7-931e-c4f5ba2fee75/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd6609-9d70-43f7-931e-c4f5ba2fee75/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd6609-9d70-43f7-931e-c4f5ba2fee75/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd6609-9d70-43f7-931e-c4f5ba2fee75/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd6609-9d70-43f7-931e-c4f5ba2fee75/bin/utaipan-TEXQjIfE4P --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 bc38af6d85a1ea18be4ba0c188eed765e9a84460b9b23510e792660c4b3625d7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:28:48,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:28:48,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:28:49,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:28:49,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:28:49,020 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:28:49,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:28:49,027 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:28:49,030 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:28:49,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:28:49,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:28:49,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:28:49,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:28:49,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:28:49,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:28:49,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:28:49,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:28:49,054 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:28:49,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:28:49,059 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:28:49,061 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:28:49,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:28:49,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:28:49,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:28:49,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:28:49,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:28:49,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:28:49,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:28:49,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:28:49,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:28:49,087 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:28:49,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:28:49,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:28:49,090 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:28:49,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:28:49,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:28:49,092 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:28:49,092 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:28:49,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:28:49,093 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:28:49,094 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:28:49,095 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd6609-9d70-43f7-931e-c4f5ba2fee75/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 00:28:49,123 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:28:49,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:28:49,123 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:28:49,123 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:28:49,124 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:28:49,124 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:28:49,124 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:28:49,125 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:28:49,125 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:28:49,125 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:28:49,125 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:28:49,125 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:28:49,126 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:28:49,126 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:28:49,126 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:28:49,126 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:28:49,126 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:28:49,127 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:28:49,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:28:49,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:28:49,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:28:49,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:28:49,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:28:49,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:28:49,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:28:49,129 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:28:49,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:28:49,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:28:49,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:28:49,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:28:49,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:28:49,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:28:49,130 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:28:49,130 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:28:49,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:28:49,131 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:28:49,131 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:28:49,131 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:28:49,131 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_87dd6609-9d70-43f7-931e-c4f5ba2fee75/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd6609-9d70-43f7-931e-c4f5ba2fee75/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc38af6d85a1ea18be4ba0c188eed765e9a84460b9b23510e792660c4b3625d7 [2021-11-21 00:28:49,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:28:49,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:28:49,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:28:49,438 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:28:49,439 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:28:49,440 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd6609-9d70-43f7-931e-c4f5ba2fee75/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i [2021-11-21 00:28:49,524 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd6609-9d70-43f7-931e-c4f5ba2fee75/bin/utaipan-TEXQjIfE4P/data/d319184ae/23f93db463af4b5fb5a6820498d3e380/FLAG16a94c162 [2021-11-21 00:28:50,664 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:28:50,665 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd6609-9d70-43f7-931e-c4f5ba2fee75/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i [2021-11-21 00:28:50,751 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd6609-9d70-43f7-931e-c4f5ba2fee75/bin/utaipan-TEXQjIfE4P/data/d319184ae/23f93db463af4b5fb5a6820498d3e380/FLAG16a94c162 [2021-11-21 00:28:50,872 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd6609-9d70-43f7-931e-c4f5ba2fee75/bin/utaipan-TEXQjIfE4P/data/d319184ae/23f93db463af4b5fb5a6820498d3e380 [2021-11-21 00:28:50,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:28:50,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:28:50,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:28:50,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:28:50,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:28:50,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:28:50" (1/1) ... [2021-11-21 00:28:50,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7380e36d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:50, skipping insertion in model container [2021-11-21 00:28:50,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:28:50" (1/1) ... [2021-11-21 00:28:50,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:28:51,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:28:57,240 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_87dd6609-9d70-43f7-931e-c4f5ba2fee75/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i[552482,552495] [2021-11-21 00:28:57,243 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_87dd6609-9d70-43f7-931e-c4f5ba2fee75/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i[552651,552664] [2021-11-21 00:28:57,244 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_87dd6609-9d70-43f7-931e-c4f5ba2fee75/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i[552818,552831] [2021-11-21 00:28:57,244 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_87dd6609-9d70-43f7-931e-c4f5ba2fee75/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i[552986,552999] [2021-11-21 00:28:57,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:28:57,425 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:28:58,122 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_87dd6609-9d70-43f7-931e-c4f5ba2fee75/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i[552482,552495] [2021-11-21 00:28:58,123 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_87dd6609-9d70-43f7-931e-c4f5ba2fee75/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i[552651,552664] [2021-11-21 00:28:58,124 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_87dd6609-9d70-43f7-931e-c4f5ba2fee75/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i[552818,552831] [2021-11-21 00:28:58,124 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_87dd6609-9d70-43f7-931e-c4f5ba2fee75/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i[552986,552999] [2021-11-21 00:28:58,139 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:28:58,523 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:28:58,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:58 WrapperNode [2021-11-21 00:28:58,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:28:58,525 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:28:58,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:28:58,525 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:28:58,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:58" (1/1) ... [2021-11-21 00:28:58,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:58" (1/1) ... [2021-11-21 00:28:59,231 INFO L137 Inliner]: procedures = 703, calls = 5887, calls flagged for inlining = 364, calls inlined = 322, statements flattened = 10884 [2021-11-21 00:28:59,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:28:59,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:28:59,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:28:59,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:28:59,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:58" (1/1) ... [2021-11-21 00:28:59,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:58" (1/1) ... [2021-11-21 00:28:59,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:58" (1/1) ... [2021-11-21 00:28:59,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:58" (1/1) ... [2021-11-21 00:28:59,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:58" (1/1) ... [2021-11-21 00:28:59,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:58" (1/1) ... [2021-11-21 00:28:59,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:58" (1/1) ... [2021-11-21 00:28:59,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:28:59,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:28:59,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:28:59,763 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:28:59,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:58" (1/1) ... [2021-11-21 00:28:59,772 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:28:59,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd6609-9d70-43f7-931e-c4f5ba2fee75/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:28:59,804 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd6609-9d70-43f7-931e-c4f5ba2fee75/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:28:59,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd6609-9d70-43f7-931e-c4f5ba2fee75/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:28:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_93 [2021-11-21 00:28:59,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_93 [2021-11-21 00:28:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-21 00:28:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-21 00:28:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_irq_disable [2021-11-21 00:28:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_irq_disable [2021-11-21 00:28:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 00:28:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 00:28:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-21 00:28:59,861 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-21 00:28:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_80 [2021-11-21 00:28:59,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_80 [2021-11-21 00:28:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_intr [2021-11-21 00:28:59,861 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_intr [2021-11-21 00:28:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-21 00:28:59,862 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-21 00:28:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 00:28:59,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 00:28:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_minnow_platform_init [2021-11-21 00:28:59,862 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_minnow_platform_init [2021-11-21 00:28:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_open [2021-11-21 00:28:59,863 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_open [2021-11-21 00:28:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2021-11-21 00:28:59,863 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2021-11-21 00:28:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-21 00:28:59,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-21 00:28:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_reinit_locked [2021-11-21 00:28:59,864 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_reinit_locked [2021-11-21 00:28:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_hal_power_up_phy [2021-11-21 00:28:59,865 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_hal_power_up_phy [2021-11-21 00:28:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_setup_tx_resources [2021-11-21 00:28:59,865 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_setup_tx_resources [2021-11-21 00:28:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-21 00:28:59,865 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-21 00:28:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-21 00:28:59,866 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-21 00:28:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-21 00:28:59,866 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-21 00:28:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_netpoll [2021-11-21 00:28:59,867 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_netpoll [2021-11-21 00:28:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_plat_init_hw [2021-11-21 00:28:59,867 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_plat_init_hw [2021-11-21 00:28:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_free_rx_resources [2021-11-21 00:28:59,868 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_free_rx_resources [2021-11-21 00:28:59,869 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_free_tx_resources [2021-11-21 00:28:59,869 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_free_tx_resources [2021-11-21 00:28:59,869 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-21 00:28:59,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-21 00:28:59,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pch_gbe_exit_module_17_2 [2021-11-21 00:28:59,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pch_gbe_exit_module_17_2 [2021-11-21 00:28:59,870 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-21 00:28:59,870 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-21 00:28:59,870 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-21 00:28:59,870 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-21 00:28:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2021-11-21 00:28:59,871 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2021-11-21 00:28:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure pch_set_station_address [2021-11-21 00:28:59,872 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_set_station_address [2021-11-21 00:28:59,872 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-21 00:28:59,872 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-21 00:28:59,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 00:28:59,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 00:28:59,873 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mdio_write [2021-11-21 00:28:59,873 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mdio_write [2021-11-21 00:28:59,873 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-21 00:28:59,873 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-21 00:28:59,873 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-21 00:28:59,874 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-21 00:28:59,874 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-21 00:28:59,874 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-21 00:28:59,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 00:28:59,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 00:28:59,875 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-21 00:28:59,875 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-21 00:28:59,875 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-21 00:28:59,875 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-21 00:28:59,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:28:59,876 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_power_up [2021-11-21 00:28:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_power_up [2021-11-21 00:28:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-21 00:28:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-21 00:28:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_resume [2021-11-21 00:28:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_resume [2021-11-21 00:28:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-21 00:28:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-21 00:28:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure pch_ch_event_write [2021-11-21 00:28:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_ch_event_write [2021-11-21 00:28:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-11-21 00:28:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-11-21 00:28:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 00:28:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-21 00:28:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-21 00:28:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-21 00:28:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-21 00:28:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-21 00:28:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-21 00:28:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-21 00:28:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-21 00:28:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_enable_dma_rx [2021-11-21 00:28:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_enable_dma_rx [2021-11-21 00:28:59,882 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_configure_rx [2021-11-21 00:28:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_configure_rx [2021-11-21 00:28:59,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 00:28:59,882 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_wait_clr_bit [2021-11-21 00:28:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_wait_clr_bit [2021-11-21 00:28:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 00:28:59,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 00:28:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:28:59,887 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-21 00:28:59,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-21 00:28:59,887 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2021-11-21 00:28:59,888 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2021-11-21 00:28:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 00:28:59,888 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 00:28:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_remove [2021-11-21 00:28:59,895 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_remove [2021-11-21 00:28:59,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-21 00:28:59,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-21 00:28:59,896 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-21 00:28:59,896 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-21 00:28:59,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-21 00:28:59,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-21 00:28:59,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-21 00:28:59,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-21 00:28:59,897 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-21 00:28:59,897 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-21 00:28:59,897 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_force_mac_fc [2021-11-21 00:28:59,897 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_force_mac_fc [2021-11-21 00:28:59,897 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_suspend [2021-11-21 00:28:59,898 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_suspend [2021-11-21 00:28:59,898 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-21 00:28:59,898 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-21 00:28:59,898 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-21 00:28:59,898 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-21 00:28:59,898 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-21 00:28:59,898 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-21 00:28:59,899 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2021-11-21 00:28:59,899 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2021-11-21 00:28:59,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-21 00:28:59,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-21 00:28:59,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:28:59,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-21 00:28:59,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-21 00:28:59,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-21 00:28:59,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-21 00:28:59,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-21 00:28:59,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-21 00:28:59,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2021-11-21 00:28:59,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2021-11-21 00:28:59,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-21 00:28:59,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-21 00:28:59,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-21 00:28:59,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-21 00:28:59,901 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-21 00:28:59,901 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-21 00:28:59,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:28:59,901 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-21 00:28:59,901 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-21 00:28:59,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 00:28:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 00:28:59,902 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-21 00:28:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-21 00:28:59,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:28:59,903 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 00:28:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 00:28:59,903 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-21 00:28:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-21 00:28:59,903 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-21 00:28:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-21 00:28:59,904 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-21 00:28:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-21 00:28:59,904 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2021-11-21 00:28:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2021-11-21 00:28:59,904 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-21 00:28:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-21 00:28:59,904 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_set_wol_event [2021-11-21 00:28:59,905 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_set_wol_event [2021-11-21 00:28:59,905 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-21 00:28:59,905 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-21 00:28:59,905 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_ctrl_miim [2021-11-21 00:28:59,905 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_ctrl_miim [2021-11-21 00:28:59,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-21 00:28:59,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-21 00:28:59,906 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_get_regs_len [2021-11-21 00:28:59,906 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_get_regs_len [2021-11-21 00:28:59,906 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-21 00:28:59,906 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-21 00:28:59,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:28:59,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:28:59,906 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_alloc_rx_buffers [2021-11-21 00:28:59,907 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_alloc_rx_buffers [2021-11-21 00:28:59,907 INFO L130 BoogieDeclarations]: Found specification of procedure __pch_gbe_suspend [2021-11-21 00:28:59,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __pch_gbe_suspend [2021-11-21 00:28:59,907 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-21 00:28:59,907 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-21 00:28:59,907 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_plat_get_bus_info [2021-11-21 00:28:59,907 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_plat_get_bus_info [2021-11-21 00:28:59,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-21 00:28:59,908 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-21 00:28:59,908 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_power_down [2021-11-21 00:28:59,908 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_power_down [2021-11-21 00:28:59,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 00:28:59,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 00:28:59,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 00:28:59,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 00:28:59,909 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2021-11-21 00:28:59,909 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2021-11-21 00:28:59,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-21 00:28:59,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-21 00:28:59,909 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_update_stats [2021-11-21 00:28:59,909 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_update_stats [2021-11-21 00:28:59,910 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-21 00:28:59,910 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-21 00:28:59,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2021-11-21 00:28:59,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2021-11-21 00:28:59,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-21 00:28:59,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-21 00:28:59,910 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum [2021-11-21 00:28:59,911 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum [2021-11-21 00:28:59,911 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mdio_read [2021-11-21 00:28:59,911 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mdio_read [2021-11-21 00:28:59,911 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_clean_rx_ring [2021-11-21 00:28:59,911 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_clean_rx_ring [2021-11-21 00:28:59,911 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-21 00:28:59,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-21 00:28:59,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_pch_gbe_tx_ring [2021-11-21 00:28:59,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_pch_gbe_tx_ring [2021-11-21 00:28:59,912 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_up [2021-11-21 00:28:59,912 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_up [2021-11-21 00:28:59,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 00:28:59,912 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 00:28:59,912 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-21 00:28:59,913 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-21 00:28:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-21 00:28:59,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-21 00:28:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2021-11-21 00:28:59,918 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2021-11-21 00:28:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_clean_tx_ring [2021-11-21 00:28:59,918 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_clean_tx_ring [2021-11-21 00:28:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_reset [2021-11-21 00:28:59,918 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_reset [2021-11-21 00:28:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-21 00:28:59,920 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-21 00:28:59,920 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2021-11-21 00:28:59,920 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2021-11-21 00:28:59,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_stop_14_2 [2021-11-21 00:28:59,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_stop_14_2 [2021-11-21 00:28:59,921 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_stop [2021-11-21 00:28:59,921 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_stop [2021-11-21 00:28:59,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:28:59,921 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_ktime [2021-11-21 00:28:59,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_ktime [2021-11-21 00:28:59,921 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-21 00:28:59,921 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-21 00:28:59,922 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-21 00:28:59,922 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-21 00:28:59,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:28:59,922 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_io_resume [2021-11-21 00:28:59,922 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_io_resume [2021-11-21 00:28:59,922 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-21 00:28:59,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-21 00:28:59,923 INFO L130 BoogieDeclarations]: Found specification of procedure pch_ch_event_read [2021-11-21 00:28:59,923 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_ch_event_read [2021-11-21 00:28:59,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 00:28:59,923 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-21 00:28:59,923 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-21 00:28:59,923 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-21 00:28:59,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-21 00:28:59,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-21 00:28:59,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-21 00:28:59,924 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_nway_reset [2021-11-21 00:28:59,924 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_nway_reset [2021-11-21 00:28:59,924 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-21 00:28:59,924 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-21 00:28:59,924 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-21 00:28:59,924 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-21 00:28:59,925 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_irq_enable [2021-11-21 00:28:59,925 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_irq_enable [2021-11-21 00:28:59,925 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-21 00:28:59,925 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-21 00:28:59,925 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_hw_reset [2021-11-21 00:28:59,925 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_hw_reset [2021-11-21 00:28:59,925 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_tx_timeout [2021-11-21 00:28:59,926 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_tx_timeout [2021-11-21 00:28:59,926 INFO L130 BoogieDeclarations]: Found specification of procedure mii_link_ok [2021-11-21 00:28:59,926 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_link_ok [2021-11-21 00:28:59,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 00:28:59,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 00:28:59,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-21 00:28:59,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-21 00:28:59,927 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_sset [2021-11-21 00:28:59,927 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_sset [2021-11-21 00:28:59,927 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_hal_power_down_phy [2021-11-21 00:28:59,927 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_hal_power_down_phy [2021-11-21 00:28:59,927 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-21 00:28:59,927 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-21 00:28:59,927 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_set_mode [2021-11-21 00:28:59,927 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_set_mode [2021-11-21 00:28:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-21 00:28:59,928 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-21 00:28:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-21 00:28:59,928 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-21 00:28:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_setup_rx_resources [2021-11-21 00:28:59,928 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_setup_rx_resources [2021-11-21 00:28:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-21 00:28:59,929 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-21 00:28:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 00:28:59,929 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 00:28:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_validate_option [2021-11-21 00:28:59,929 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_validate_option [2021-11-21 00:28:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_reset_hw [2021-11-21 00:28:59,929 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_reset_hw [2021-11-21 00:28:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure udp_hdr [2021-11-21 00:28:59,930 INFO L138 BoogieDeclarations]: Found implementation of procedure udp_hdr [2021-11-21 00:28:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:28:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_setup_rctl [2021-11-21 00:28:59,930 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_setup_rctl [2021-11-21 00:28:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_sw_reset [2021-11-21 00:28:59,930 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_sw_reset [2021-11-21 00:28:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 00:28:59,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 00:28:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_hal_phy_hw_reset [2021-11-21 00:28:59,931 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_hal_phy_hw_reset [2021-11-21 00:28:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_write_reg_miic [2021-11-21 00:28:59,931 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_write_reg_miic [2021-11-21 00:28:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-21 00:28:59,931 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-21 00:28:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-21 00:28:59,932 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-21 00:28:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure pch_ch_control_write [2021-11-21 00:28:59,932 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_ch_control_write [2021-11-21 00:28:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_set_multi [2021-11-21 00:28:59,932 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_set_multi [2021-11-21 00:28:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_shutdown [2021-11-21 00:28:59,932 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_shutdown [2021-11-21 00:28:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-21 00:28:59,933 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-21 00:28:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-21 00:28:59,933 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-21 00:28:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_read_reg_miic [2021-11-21 00:28:59,933 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_read_reg_miic [2021-11-21 00:28:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_95 [2021-11-21 00:28:59,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_95 [2021-11-21 00:28:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 00:28:59,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 00:28:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_read_mac_addr [2021-11-21 00:28:59,934 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_read_mac_addr [2021-11-21 00:28:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_set_rgmii_ctrl [2021-11-21 00:28:59,934 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_set_rgmii_ctrl [2021-11-21 00:28:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2021-11-21 00:28:59,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2021-11-21 00:28:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_down [2021-11-21 00:28:59,935 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_down [2021-11-21 00:28:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_free_irq [2021-11-21 00:28:59,935 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_free_irq [2021-11-21 00:28:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:28:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_mar_set [2021-11-21 00:28:59,936 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_mar_set [2021-11-21 00:28:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-21 00:28:59,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-21 00:29:01,459 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:29:01,465 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:29:01,927 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 00:29:20,874 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-21 00:29:21,510 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:29:23,762 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:29:23,762 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-21 00:29:23,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:29:23 BoogieIcfgContainer [2021-11-21 00:29:23,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:29:23,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:29:23,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:29:23,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:29:23,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:28:50" (1/3) ... [2021-11-21 00:29:23,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3469fcd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:29:23, skipping insertion in model container [2021-11-21 00:29:23,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:58" (2/3) ... [2021-11-21 00:29:23,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3469fcd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:29:23, skipping insertion in model container [2021-11-21 00:29:23,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:29:23" (3/3) ... [2021-11-21 00:29:23,781 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i [2021-11-21 00:29:23,788 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:29:23,788 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-21 00:29:23,875 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:29:23,886 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 [2021-11-21 00:29:23,887 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-21 00:29:23,974 INFO L276 IsEmpty]: Start isEmpty. Operand has 2555 states, 1511 states have (on average 1.2911978821972203) internal successors, (1951), 1555 states have internal predecessors, (1951), 870 states have call successors, (870), 172 states have call predecessors, (870), 171 states have return successors, (860), 844 states have call predecessors, (860), 860 states have call successors, (860) [2021-11-21 00:29:24,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-11-21 00:29:24,000 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:29:24,001 INFO L514 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 21, 21, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:29:24,001 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-21 00:29:24,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:29:24,007 INFO L85 PathProgramCache]: Analyzing trace with hash -277768957, now seen corresponding path program 1 times [2021-11-21 00:29:24,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:29:24,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127249667] [2021-11-21 00:29:24,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:24,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:29:24,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:29:25,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1725 trivial. 0 not checked. [2021-11-21 00:29:25,186 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:29:25,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127249667] [2021-11-21 00:29:25,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127249667] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:29:25,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:29:25,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:29:25,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553312976] [2021-11-21 00:29:25,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:29:25,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:29:25,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:29:25,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:29:25,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:29:25,273 INFO L87 Difference]: Start difference. First operand has 2555 states, 1511 states have (on average 1.2911978821972203) internal successors, (1951), 1555 states have internal predecessors, (1951), 870 states have call successors, (870), 172 states have call predecessors, (870), 171 states have return successors, (860), 844 states have call predecessors, (860), 860 states have call successors, (860) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-21 00:29:30,189 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:33,113 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:36,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:29:36,827 INFO L93 Difference]: Finished difference Result 7345 states and 10866 transitions. [2021-11-21 00:29:36,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:29:36,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 235 [2021-11-21 00:29:36,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:29:36,914 INFO L225 Difference]: With dead ends: 7345 [2021-11-21 00:29:36,915 INFO L226 Difference]: Without dead ends: 4819 [2021-11-21 00:29:36,949 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 [2021-11-21 00:29:36,953 INFO L933 BasicCegarLoop]: 3873 mSDtfsCounter, 3292 mSDsluCounter, 3609 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3292 SdHoareTripleChecker+Valid, 6948 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:29:36,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3292 Valid, 6948 Invalid, 1127 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1116 Invalid, 2 Unknown, 0 Unchecked, 10.9s Time] [2021-11-21 00:29:36,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4819 states. [2021-11-21 00:29:37,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4819 to 4812. [2021-11-21 00:29:37,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4812 states, 2860 states have (on average 1.2828671328671328) internal successors, (3669), 2943 states have internal predecessors, (3669), 1611 states have call successors, (1611), 338 states have call predecessors, (1611), 337 states have return successors, (1607), 1575 states have call predecessors, (1607), 1607 states have call successors, (1607) [2021-11-21 00:29:37,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4812 states to 4812 states and 6887 transitions. [2021-11-21 00:29:37,529 INFO L78 Accepts]: Start accepts. Automaton has 4812 states and 6887 transitions. Word has length 235 [2021-11-21 00:29:37,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:29:37,534 INFO L470 AbstractCegarLoop]: Abstraction has 4812 states and 6887 transitions. [2021-11-21 00:29:37,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-21 00:29:37,536 INFO L276 IsEmpty]: Start isEmpty. Operand 4812 states and 6887 transitions. [2021-11-21 00:29:37,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-11-21 00:29:37,552 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:29:37,553 INFO L514 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:29:37,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:29:37,554 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-21 00:29:37,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:29:37,555 INFO L85 PathProgramCache]: Analyzing trace with hash 143152162, now seen corresponding path program 1 times [2021-11-21 00:29:37,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:29:37,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665992925] [2021-11-21 00:29:37,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:37,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:29:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:29:38,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2021-11-21 00:29:38,150 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:29:38,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665992925] [2021-11-21 00:29:38,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665992925] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:29:38,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:29:38,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:29:38,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044942837] [2021-11-21 00:29:38,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:29:38,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:29:38,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:29:38,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:29:38,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:29:38,157 INFO L87 Difference]: Start difference. First operand 4812 states and 6887 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-21 00:29:44,143 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:47,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:29:47,402 INFO L93 Difference]: Finished difference Result 11845 states and 16922 transitions. [2021-11-21 00:29:47,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:29:47,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 239 [2021-11-21 00:29:47,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:29:47,475 INFO L225 Difference]: With dead ends: 11845 [2021-11-21 00:29:47,475 INFO L226 Difference]: Without dead ends: 7076 [2021-11-21 00:29:47,507 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 [2021-11-21 00:29:47,509 INFO L933 BasicCegarLoop]: 3907 mSDtfsCounter, 3263 mSDsluCounter, 3592 mSDsCounter, 0 mSdLazyCounter, 1132 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3263 SdHoareTripleChecker+Valid, 6968 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1132 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:29:47,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3263 Valid, 6968 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1132 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2021-11-21 00:29:47,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7076 states. [2021-11-21 00:29:48,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7076 to 7041. [2021-11-21 00:29:48,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7041 states, 4176 states have (on average 1.2777777777777777) internal successors, (5336), 4302 states have internal predecessors, (5336), 2355 states have call successors, (2355), 507 states have call predecessors, (2355), 506 states have return successors, (2351), 2298 states have call predecessors, (2351), 2351 states have call successors, (2351) [2021-11-21 00:29:48,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7041 states to 7041 states and 10042 transitions. [2021-11-21 00:29:48,159 INFO L78 Accepts]: Start accepts. Automaton has 7041 states and 10042 transitions. Word has length 239 [2021-11-21 00:29:48,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:29:48,161 INFO L470 AbstractCegarLoop]: Abstraction has 7041 states and 10042 transitions. [2021-11-21 00:29:48,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-21 00:29:48,163 INFO L276 IsEmpty]: Start isEmpty. Operand 7041 states and 10042 transitions. [2021-11-21 00:29:48,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-11-21 00:29:48,170 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:29:48,170 INFO L514 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:29:48,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:29:48,171 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-21 00:29:48,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:29:48,172 INFO L85 PathProgramCache]: Analyzing trace with hash 2120971942, now seen corresponding path program 1 times [2021-11-21 00:29:48,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:29:48,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399666694] [2021-11-21 00:29:48,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:48,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:29:48,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:29:48,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2021-11-21 00:29:48,648 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:29:48,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399666694] [2021-11-21 00:29:48,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399666694] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:29:48,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:29:48,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:29:48,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115962364] [2021-11-21 00:29:48,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:29:48,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:29:48,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:29:48,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:29:48,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:29:48,653 INFO L87 Difference]: Start difference. First operand 7041 states and 10042 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-21 00:29:52,918 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:57,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:29:57,760 INFO L93 Difference]: Finished difference Result 18493 states and 26353 transitions. [2021-11-21 00:29:57,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:29:57,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 240 [2021-11-21 00:29:57,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:29:57,877 INFO L225 Difference]: With dead ends: 18493 [2021-11-21 00:29:57,877 INFO L226 Difference]: Without dead ends: 11495 [2021-11-21 00:29:57,932 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 [2021-11-21 00:29:57,933 INFO L933 BasicCegarLoop]: 3860 mSDtfsCounter, 3259 mSDsluCounter, 3628 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3259 SdHoareTripleChecker+Valid, 6945 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:29:57,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3259 Valid, 6945 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1095 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2021-11-21 00:29:57,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11495 states. [2021-11-21 00:29:58,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11495 to 11462. [2021-11-21 00:29:58,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11462 states, 6813 states have (on average 1.2794657272860708) internal successors, (8717), 7014 states have internal predecessors, (8717), 3807 states have call successors, (3807), 839 states have call predecessors, (3807), 838 states have return successors, (3803), 3713 states have call predecessors, (3803), 3803 states have call successors, (3803) [2021-11-21 00:29:58,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11462 states to 11462 states and 16327 transitions. [2021-11-21 00:29:58,868 INFO L78 Accepts]: Start accepts. Automaton has 11462 states and 16327 transitions. Word has length 240 [2021-11-21 00:29:58,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:29:58,870 INFO L470 AbstractCegarLoop]: Abstraction has 11462 states and 16327 transitions. [2021-11-21 00:29:58,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-21 00:29:58,870 INFO L276 IsEmpty]: Start isEmpty. Operand 11462 states and 16327 transitions. [2021-11-21 00:29:58,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-21 00:29:58,878 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:29:58,878 INFO L514 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:29:58,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 00:29:58,879 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-21 00:29:58,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:29:58,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1140226960, now seen corresponding path program 1 times [2021-11-21 00:29:58,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:29:58,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767457446] [2021-11-21 00:29:58,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:58,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:29:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:29:59,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2021-11-21 00:29:59,327 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:29:59,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767457446] [2021-11-21 00:29:59,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767457446] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:29:59,328 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:29:59,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:29:59,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849412053] [2021-11-21 00:29:59,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:29:59,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:29:59,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:29:59,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:29:59,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:29:59,331 INFO L87 Difference]: Start difference. First operand 11462 states and 16327 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-21 00:30:02,924 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:30:07,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:30:07,974 INFO L93 Difference]: Finished difference Result 29546 states and 42098 transitions. [2021-11-21 00:30:07,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:30:07,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 243 [2021-11-21 00:30:07,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:30:08,114 INFO L225 Difference]: With dead ends: 29546 [2021-11-21 00:30:08,114 INFO L226 Difference]: Without dead ends: 18127 [2021-11-21 00:30:08,180 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 [2021-11-21 00:30:08,181 INFO L933 BasicCegarLoop]: 3819 mSDtfsCounter, 2723 mSDsluCounter, 3533 mSDsCounter, 0 mSdLazyCounter, 1155 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2723 SdHoareTripleChecker+Valid, 6846 SdHoareTripleChecker+Invalid, 1163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1155 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:30:08,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2723 Valid, 6846 Invalid, 1163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1155 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2021-11-21 00:30:08,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18127 states. [2021-11-21 00:30:09,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18127 to 18091. [2021-11-21 00:30:09,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18091 states, 10716 states have (on average 1.2683837252706234) internal successors, (13592), 11033 states have internal predecessors, (13592), 5988 states have call successors, (5988), 1396 states have call predecessors, (5988), 1383 states have return successors, (6181), 5810 states have call predecessors, (6181), 5984 states have call successors, (6181) [2021-11-21 00:30:09,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18091 states to 18091 states and 25761 transitions. [2021-11-21 00:30:09,502 INFO L78 Accepts]: Start accepts. Automaton has 18091 states and 25761 transitions. Word has length 243 [2021-11-21 00:30:09,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:30:09,508 INFO L470 AbstractCegarLoop]: Abstraction has 18091 states and 25761 transitions. [2021-11-21 00:30:09,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-21 00:30:09,508 INFO L276 IsEmpty]: Start isEmpty. Operand 18091 states and 25761 transitions. [2021-11-21 00:30:09,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-11-21 00:30:09,519 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:30:09,520 INFO L514 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:30:09,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 00:30:09,520 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-21 00:30:09,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:30:09,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1596022519, now seen corresponding path program 1 times [2021-11-21 00:30:09,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:30:09,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625360239] [2021-11-21 00:30:09,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:30:09,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:30:09,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:30:09,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2021-11-21 00:30:09,939 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:30:09,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625360239] [2021-11-21 00:30:09,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625360239] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:30:09,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:30:09,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:30:09,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612783887] [2021-11-21 00:30:09,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:30:09,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:30:09,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:30:09,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:30:09,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:30:09,942 INFO L87 Difference]: Start difference. First operand 18091 states and 25761 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-21 00:30:15,430 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:30:19,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:30:19,268 INFO L93 Difference]: Finished difference Result 53098 states and 75443 transitions. [2021-11-21 00:30:19,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:30:19,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 245 [2021-11-21 00:30:19,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:30:19,463 INFO L225 Difference]: With dead ends: 53098 [2021-11-21 00:30:19,463 INFO L226 Difference]: Without dead ends: 35050 [2021-11-21 00:30:19,537 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 [2021-11-21 00:30:19,538 INFO L933 BasicCegarLoop]: 4135 mSDtfsCounter, 3351 mSDsluCounter, 3547 mSDsCounter, 0 mSdLazyCounter, 1233 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3351 SdHoareTripleChecker+Valid, 7163 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1233 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:30:19,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3351 Valid, 7163 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1233 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2021-11-21 00:30:19,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35050 states. [2021-11-21 00:30:21,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35050 to 35000. [2021-11-21 00:30:21,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35000 states, 20647 states have (on average 1.2567443212088922) internal successors, (25948), 21296 states have internal predecessors, (25948), 11593 states have call successors, (11593), 2781 states have call predecessors, (11593), 2756 states have return successors, (11891), 11220 states have call predecessors, (11891), 11589 states have call successors, (11891) [2021-11-21 00:30:21,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35000 states to 35000 states and 49432 transitions. [2021-11-21 00:30:21,908 INFO L78 Accepts]: Start accepts. Automaton has 35000 states and 49432 transitions. Word has length 245 [2021-11-21 00:30:21,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:30:21,909 INFO L470 AbstractCegarLoop]: Abstraction has 35000 states and 49432 transitions. [2021-11-21 00:30:21,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-21 00:30:21,910 INFO L276 IsEmpty]: Start isEmpty. Operand 35000 states and 49432 transitions. [2021-11-21 00:30:21,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-11-21 00:30:21,923 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:30:21,923 INFO L514 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:30:21,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 00:30:21,924 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-21 00:30:21,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:30:21,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1563822599, now seen corresponding path program 1 times [2021-11-21 00:30:21,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:30:21,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311711221] [2021-11-21 00:30:21,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:30:21,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:30:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:30:22,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2021-11-21 00:30:22,334 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:30:22,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311711221] [2021-11-21 00:30:22,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311711221] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:30:22,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:30:22,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:30:22,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079344910] [2021-11-21 00:30:22,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:30:22,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:30:22,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:30:22,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:30:22,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:30:22,337 INFO L87 Difference]: Start difference. First operand 35000 states and 49432 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-21 00:30:26,825 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:30:33,285 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:30:33,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:30:33,967 INFO L93 Difference]: Finished difference Result 96657 states and 136148 transitions. [2021-11-21 00:30:33,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:30:33,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 270 [2021-11-21 00:30:33,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:30:34,629 INFO L225 Difference]: With dead ends: 96657 [2021-11-21 00:30:34,629 INFO L226 Difference]: Without dead ends: 61700 [2021-11-21 00:30:34,764 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 [2021-11-21 00:30:34,765 INFO L933 BasicCegarLoop]: 4194 mSDtfsCounter, 2932 mSDsluCounter, 3568 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 19 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2932 SdHoareTripleChecker+Valid, 7234 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2021-11-21 00:30:34,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2932 Valid, 7234 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1267 Invalid, 2 Unknown, 0 Unchecked, 9.8s Time] [2021-11-21 00:30:34,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61700 states. [2021-11-21 00:30:37,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61700 to 61638. [2021-11-21 00:30:37,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61638 states, 36459 states have (on average 1.2498971447379248) internal successors, (45570), 37628 states have internal predecessors, (45570), 20157 states have call successors, (20157), 5083 states have call predecessors, (20157), 5018 states have return successors, (20691), 19452 states have call predecessors, (20691), 20153 states have call successors, (20691) [2021-11-21 00:30:38,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61638 states to 61638 states and 86418 transitions. [2021-11-21 00:30:38,461 INFO L78 Accepts]: Start accepts. Automaton has 61638 states and 86418 transitions. Word has length 270 [2021-11-21 00:30:38,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:30:38,463 INFO L470 AbstractCegarLoop]: Abstraction has 61638 states and 86418 transitions. [2021-11-21 00:30:38,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-21 00:30:38,464 INFO L276 IsEmpty]: Start isEmpty. Operand 61638 states and 86418 transitions. [2021-11-21 00:30:38,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-11-21 00:30:38,473 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:30:38,473 INFO L514 BasicCegarLoop]: trace histogram [23, 21, 21, 21, 21, 21, 21, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:30:38,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 00:30:38,473 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-21 00:30:38,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:30:38,474 INFO L85 PathProgramCache]: Analyzing trace with hash 846165166, now seen corresponding path program 1 times [2021-11-21 00:30:38,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:30:38,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241033267] [2021-11-21 00:30:38,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:30:38,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:30:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:30:38,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1773 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1766 trivial. 0 not checked. [2021-11-21 00:30:38,870 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:30:38,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241033267] [2021-11-21 00:30:38,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241033267] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:30:38,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:30:38,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:30:38,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296550276] [2021-11-21 00:30:38,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:30:38,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:30:38,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:30:38,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:30:38,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:30:38,874 INFO L87 Difference]: Start difference. First operand 61638 states and 86418 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-21 00:30:43,428 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:30:49,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:30:49,356 INFO L93 Difference]: Finished difference Result 172720 states and 242395 transitions. [2021-11-21 00:30:49,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:30:49,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 265 [2021-11-21 00:30:49,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:30:49,943 INFO L225 Difference]: With dead ends: 172720 [2021-11-21 00:30:49,943 INFO L226 Difference]: Without dead ends: 111125 [2021-11-21 00:30:50,443 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 [2021-11-21 00:30:50,444 INFO L933 BasicCegarLoop]: 4569 mSDtfsCounter, 3270 mSDsluCounter, 3596 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3270 SdHoareTripleChecker+Valid, 7631 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:30:50,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3270 Valid, 7631 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1344 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2021-11-21 00:30:50,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111125 states. [2021-11-21 00:30:54,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111125 to 111027. [2021-11-21 00:30:54,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111027 states, 65946 states have (on average 1.2495829921450885) internal successors, (82405), 68083 states have internal predecessors, (82405), 36111 states have call successors, (36111), 9083 states have call predecessors, (36111), 8966 states have return successors, (37085), 34818 states have call predecessors, (37085), 36107 states have call successors, (37085) [2021-11-21 00:30:55,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111027 states to 111027 states and 155601 transitions. [2021-11-21 00:30:55,625 INFO L78 Accepts]: Start accepts. Automaton has 111027 states and 155601 transitions. Word has length 265 [2021-11-21 00:30:55,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:30:55,626 INFO L470 AbstractCegarLoop]: Abstraction has 111027 states and 155601 transitions. [2021-11-21 00:30:55,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-21 00:30:55,627 INFO L276 IsEmpty]: Start isEmpty. Operand 111027 states and 155601 transitions. [2021-11-21 00:30:55,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-11-21 00:30:55,634 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:30:55,634 INFO L514 BasicCegarLoop]: trace histogram [25, 21, 21, 21, 21, 21, 21, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:30:55,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 00:30:55,635 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-21 00:30:55,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:30:55,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1211452170, now seen corresponding path program 1 times [2021-11-21 00:30:55,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:30:55,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182117025] [2021-11-21 00:30:55,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:30:55,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:30:55,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:30:56,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1894 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1894 trivial. 0 not checked. [2021-11-21 00:30:56,725 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:30:56,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182117025] [2021-11-21 00:30:56,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182117025] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:30:56,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:30:56,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:30:56,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352896757] [2021-11-21 00:30:56,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:30:56,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:30:56,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:30:56,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:30:56,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:30:56,728 INFO L87 Difference]: Start difference. First operand 111027 states and 155601 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-21 00:31:01,753 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:31:09,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:31:09,978 INFO L93 Difference]: Finished difference Result 133681 states and 186662 transitions. [2021-11-21 00:31:09,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:31:09,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 278 [2021-11-21 00:31:09,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:31:10,591 INFO L225 Difference]: With dead ends: 133681 [2021-11-21 00:31:10,591 INFO L226 Difference]: Without dead ends: 133679 [2021-11-21 00:31:10,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:31:10,676 INFO L933 BasicCegarLoop]: 3677 mSDtfsCounter, 2503 mSDsluCounter, 11997 mSDsCounter, 0 mSdLazyCounter, 2207 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2519 SdHoareTripleChecker+Valid, 14038 SdHoareTripleChecker+Invalid, 2210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2207 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:31:10,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2519 Valid, 14038 Invalid, 2210 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2207 Invalid, 1 Unknown, 0 Unchecked, 10.1s Time] [2021-11-21 00:31:10,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133679 states. [2021-11-21 00:31:15,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133679 to 133671. [2021-11-21 00:31:15,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133671 states, 79345 states have (on average 1.246442750015754) internal successors, (98899), 81904 states have internal predecessors, (98899), 43393 states have call successors, (43393), 11055 states have call predecessors, (43393), 10929 states have return successors, (44363), 41825 states have call predecessors, (44363), 43385 states have call successors, (44363) [2021-11-21 00:31:16,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133671 states to 133671 states and 186655 transitions. [2021-11-21 00:31:16,964 INFO L78 Accepts]: Start accepts. Automaton has 133671 states and 186655 transitions. Word has length 278 [2021-11-21 00:31:16,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:31:16,965 INFO L470 AbstractCegarLoop]: Abstraction has 133671 states and 186655 transitions. [2021-11-21 00:31:16,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-21 00:31:16,966 INFO L276 IsEmpty]: Start isEmpty. Operand 133671 states and 186655 transitions. [2021-11-21 00:31:16,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-11-21 00:31:16,970 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:31:16,970 INFO L514 BasicCegarLoop]: trace histogram [25, 21, 21, 21, 21, 21, 21, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:31:16,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 00:31:16,971 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-21 00:31:16,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:31:16,972 INFO L85 PathProgramCache]: Analyzing trace with hash 198616236, now seen corresponding path program 1 times [2021-11-21 00:31:16,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:31:16,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610535242] [2021-11-21 00:31:16,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:31:16,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:31:17,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:31:17,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1889 trivial. 0 not checked. [2021-11-21 00:31:17,438 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:31:17,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610535242] [2021-11-21 00:31:17,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610535242] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:31:17,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:31:17,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:31:17,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553459693] [2021-11-21 00:31:17,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:31:17,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:31:17,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:31:17,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:31:17,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:31:17,441 INFO L87 Difference]: Start difference. First operand 133671 states and 186655 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-21 00:31:22,377 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:31:30,877 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:31:32,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:31:32,647 INFO L93 Difference]: Finished difference Result 133685 states and 186665 transitions. [2021-11-21 00:31:32,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:31:32,647 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 282 [2021-11-21 00:31:32,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:31:33,391 INFO L225 Difference]: With dead ends: 133685 [2021-11-21 00:31:33,391 INFO L226 Difference]: Without dead ends: 133683 [2021-11-21 00:31:33,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:31:33,451 INFO L933 BasicCegarLoop]: 3680 mSDtfsCounter, 2499 mSDsluCounter, 11994 mSDsCounter, 0 mSdLazyCounter, 2203 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2514 SdHoareTripleChecker+Valid, 14041 SdHoareTripleChecker+Invalid, 2207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2203 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:31:33,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2514 Valid, 14041 Invalid, 2207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2203 Invalid, 2 Unknown, 0 Unchecked, 12.2s Time] [2021-11-21 00:31:33,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133683 states. [2021-11-21 00:31:38,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133683 to 133675. [2021-11-21 00:31:38,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133675 states, 79348 states have (on average 1.2464334324746686) internal successors, (98902), 81907 states have internal predecessors, (98902), 43393 states have call successors, (43393), 11056 states have call predecessors, (43393), 10930 states have return successors, (44363), 41825 states have call predecessors, (44363), 43385 states have call successors, (44363) [2021-11-21 00:31:39,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133675 states to 133675 states and 186658 transitions. [2021-11-21 00:31:39,751 INFO L78 Accepts]: Start accepts. Automaton has 133675 states and 186658 transitions. Word has length 282 [2021-11-21 00:31:39,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:31:39,752 INFO L470 AbstractCegarLoop]: Abstraction has 133675 states and 186658 transitions. [2021-11-21 00:31:39,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-21 00:31:39,752 INFO L276 IsEmpty]: Start isEmpty. Operand 133675 states and 186658 transitions. [2021-11-21 00:31:39,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2021-11-21 00:31:39,757 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:31:39,757 INFO L514 BasicCegarLoop]: trace histogram [25, 21, 21, 21, 21, 21, 21, 5, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:31:39,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 00:31:39,757 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-21 00:31:39,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:31:39,758 INFO L85 PathProgramCache]: Analyzing trace with hash -2012109386, now seen corresponding path program 1 times [2021-11-21 00:31:39,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:31:39,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520321698] [2021-11-21 00:31:39,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:31:39,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:31:39,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:31:40,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1902 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1898 trivial. 0 not checked. [2021-11-21 00:31:40,189 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:31:40,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520321698] [2021-11-21 00:31:40,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520321698] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:31:40,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:31:40,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:31:40,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430066331] [2021-11-21 00:31:40,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:31:40,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:31:40,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:31:40,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:31:40,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:31:40,193 INFO L87 Difference]: Start difference. First operand 133675 states and 186658 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34)