./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775217f0-b0e6-44a2-aecb-a83319ea9ec6/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775217f0-b0e6-44a2-aecb-a83319ea9ec6/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775217f0-b0e6-44a2-aecb-a83319ea9ec6/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775217f0-b0e6-44a2-aecb-a83319ea9ec6/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775217f0-b0e6-44a2-aecb-a83319ea9ec6/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775217f0-b0e6-44a2-aecb-a83319ea9ec6/bin/utaipan-g80aRyZoba --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 2bf48d35d7133b2e8327bc0634357c212875c286543fcf18078150bbf7eff020 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 00:17:28,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:17:28,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:17:28,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:17:28,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:17:28,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:17:28,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:17:28,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:17:28,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:17:28,120 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:17:28,121 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:17:28,123 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:17:28,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:17:28,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:17:28,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:17:28,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:17:28,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:17:28,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:17:28,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:17:28,132 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:17:28,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:17:28,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:17:28,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:17:28,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:17:28,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:17:28,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:17:28,154 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:17:28,155 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:17:28,155 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:17:28,156 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:17:28,157 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:17:28,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:17:28,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:17:28,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:17:28,166 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:17:28,166 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:17:28,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:17:28,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:17:28,167 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:17:28,168 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:17:28,170 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:17:28,172 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775217f0-b0e6-44a2-aecb-a83319ea9ec6/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 00:17:28,209 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:17:28,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:17:28,213 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:17:28,214 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:17:28,214 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:17:28,215 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:17:28,215 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:17:28,215 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:17:28,215 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:17:28,216 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:17:28,217 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:17:28,217 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:17:28,217 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:17:28,217 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:17:28,218 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:17:28,218 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:17:28,218 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:17:28,218 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:17:28,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:17:28,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:17:28,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:17:28,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:17:28,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:17:28,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:17:28,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:17:28,221 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:17:28,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:17:28,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:17:28,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:17:28,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:17:28,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:17:28,222 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:17:28,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:17:28,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:17:28,223 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:17:28,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:17:28,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:17:28,223 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:17:28,224 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775217f0-b0e6-44a2-aecb-a83319ea9ec6/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775217f0-b0e6-44a2-aecb-a83319ea9ec6/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2bf48d35d7133b2e8327bc0634357c212875c286543fcf18078150bbf7eff020 [2022-11-22 00:17:28,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:17:28,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:17:28,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:17:28,606 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:17:28,606 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:17:28,608 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775217f0-b0e6-44a2-aecb-a83319ea9ec6/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i [2022-11-22 00:17:31,982 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:17:33,135 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:17:33,136 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775217f0-b0e6-44a2-aecb-a83319ea9ec6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i [2022-11-22 00:17:33,204 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775217f0-b0e6-44a2-aecb-a83319ea9ec6/bin/utaipan-g80aRyZoba/data/f28471647/7864262ad74645cc9892f42cc01534ec/FLAG88a24e1c5 [2022-11-22 00:17:33,224 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775217f0-b0e6-44a2-aecb-a83319ea9ec6/bin/utaipan-g80aRyZoba/data/f28471647/7864262ad74645cc9892f42cc01534ec [2022-11-22 00:17:33,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:17:33,229 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:17:33,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:17:33,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:17:33,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:17:33,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:17:33" (1/1) ... [2022-11-22 00:17:33,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49913176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:33, skipping insertion in model container [2022-11-22 00:17:33,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:17:33" (1/1) ... [2022-11-22 00:17:33,250 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:17:33,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:17:38,593 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775217f0-b0e6-44a2-aecb-a83319ea9ec6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[469707,469720] [2022-11-22 00:17:38,601 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775217f0-b0e6-44a2-aecb-a83319ea9ec6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[469873,469886] [2022-11-22 00:17:38,601 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775217f0-b0e6-44a2-aecb-a83319ea9ec6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[470037,470050] [2022-11-22 00:17:38,602 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775217f0-b0e6-44a2-aecb-a83319ea9ec6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[470202,470215] [2022-11-22 00:17:38,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:17:38,792 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:17:39,457 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775217f0-b0e6-44a2-aecb-a83319ea9ec6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[469707,469720] [2022-11-22 00:17:39,458 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775217f0-b0e6-44a2-aecb-a83319ea9ec6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[469873,469886] [2022-11-22 00:17:39,459 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775217f0-b0e6-44a2-aecb-a83319ea9ec6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[470037,470050] [2022-11-22 00:17:39,460 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775217f0-b0e6-44a2-aecb-a83319ea9ec6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[470202,470215] [2022-11-22 00:17:39,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:17:39,783 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:17:39,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:39 WrapperNode [2022-11-22 00:17:39,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:17:39,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:17:39,786 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:17:39,786 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:17:39,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:39" (1/1) ... [2022-11-22 00:17:39,977 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:39" (1/1) ... [2022-11-22 00:17:40,343 INFO L138 Inliner]: procedures = 538, calls = 6342, calls flagged for inlining = 274, calls inlined = 248, statements flattened = 9020 [2022-11-22 00:17:40,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:17:40,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:17:40,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:17:40,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:17:40,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:39" (1/1) ... [2022-11-22 00:17:40,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:39" (1/1) ... [2022-11-22 00:17:40,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:39" (1/1) ... [2022-11-22 00:17:40,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:39" (1/1) ... [2022-11-22 00:17:40,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:39" (1/1) ... [2022-11-22 00:17:40,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:39" (1/1) ... [2022-11-22 00:17:40,742 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:39" (1/1) ... [2022-11-22 00:17:40,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:39" (1/1) ... [2022-11-22 00:17:40,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:17:40,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:17:40,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:17:40,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:17:40,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:39" (1/1) ... [2022-11-22 00:17:40,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:17:40,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775217f0-b0e6-44a2-aecb-a83319ea9ec6/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:17:40,920 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775217f0-b0e6-44a2-aecb-a83319ea9ec6/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:17:40,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775217f0-b0e6-44a2-aecb-a83319ea9ec6/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:17:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_or_killable_lock_of_islpci_acl [2022-11-22 00:17:40,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_or_killable_lock_of_islpci_acl [2022-11-22 00:17:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2022-11-22 00:17:40,970 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2022-11-22 00:17:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_eth_tx_timeout [2022-11-22 00:17:40,970 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_eth_tx_timeout [2022-11-22 00:17:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-22 00:17:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-22 00:17:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-22 00:17:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 00:17:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 00:17:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_trigger [2022-11-22 00:17:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_trigger [2022-11-22 00:17:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 00:17:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 00:17:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 00:17:40,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 00:17:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_mib_mode_helper [2022-11-22 00:17:40,973 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_mib_mode_helper [2022-11-22 00:17:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 00:17:40,974 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 00:17:40,974 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-22 00:17:40,975 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-22 00:17:40,975 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 00:17:40,975 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 00:17:40,975 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_request [2022-11-22 00:17:40,975 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_request [2022-11-22 00:17:40,975 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2022-11-22 00:17:40,976 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2022-11-22 00:17:40,976 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-22 00:17:40,977 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_get_state [2022-11-22 00:17:40,977 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_get_state [2022-11-22 00:17:40,977 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-22 00:17:40,977 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-22 00:17:40,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 00:17:40,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 00:17:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 00:17:40,978 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 00:17:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 00:17:40,978 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 00:17:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_release [2022-11-22 00:17:40,978 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_release [2022-11-22 00:17:40,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 00:17:40,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 00:17:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-22 00:17:40,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-22 00:17:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-22 00:17:40,980 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-22 00:17:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_try [2022-11-22 00:17:40,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_try [2022-11-22 00:17:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-22 00:17:40,981 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-22 00:17:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:17:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_wpa_lock_of_NOT_ARG_SIGN [2022-11-22 00:17:40,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_wpa_lock_of_NOT_ARG_SIGN [2022-11-22 00:17:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure send_simple_event [2022-11-22 00:17:40,981 INFO L138 BoogieDeclarations]: Found implementation of procedure send_simple_event [2022-11-22 00:17:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-22 00:17:40,982 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-22 00:17:40,982 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-22 00:17:40,982 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-22 00:17:40,982 INFO L130 BoogieDeclarations]: Found specification of procedure send_formatted_event [2022-11-22 00:17:40,982 INFO L138 BoogieDeclarations]: Found implementation of procedure send_formatted_event [2022-11-22 00:17:40,982 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set [2022-11-22 00:17:40,983 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set [2022-11-22 00:17:40,983 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 00:17:40,983 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 00:17:40,983 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-22 00:17:40,984 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-22 00:17:40,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 00:17:40,984 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_reset [2022-11-22 00:17:40,984 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_reset [2022-11-22 00:17:40,985 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 00:17:40,985 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 00:17:40,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-22 00:17:40,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-22 00:17:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-11-22 00:17:40,986 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-11-22 00:17:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 00:17:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 00:17:40,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 00:17:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:17:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 00:17:40,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 00:17:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 00:17:40,988 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 00:17:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 00:17:40,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 00:17:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 00:17:40,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 00:17:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_open [2022-11-22 00:17:40,989 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_open [2022-11-22 00:17:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_resume [2022-11-22 00:17:40,990 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_resume [2022-11-22 00:17:40,990 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 00:17:40,990 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 00:17:40,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 00:17:40,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 00:17:40,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 00:17:40,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 00:17:40,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 00:17:40,991 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2022-11-22 00:17:40,991 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2022-11-22 00:17:40,992 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-22 00:17:40,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-22 00:17:40,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:17:40,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 00:17:40,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 00:17:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 00:17:40,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 00:17:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 00:17:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-22 00:17:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 00:17:40,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 00:17:41,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_stats_lock_of_NOT_ARG_SIGN [2022-11-22 00:17:41,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_stats_lock_of_NOT_ARG_SIGN [2022-11-22 00:17:41,005 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-22 00:17:41,006 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-22 00:17:41,006 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-22 00:17:41,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-22 00:17:41,006 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 00:17:41,006 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 00:17:41,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_wpa_lock_of_NOT_ARG_SIGN [2022-11-22 00:17:41,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_wpa_lock_of_NOT_ARG_SIGN [2022-11-22 00:17:41,007 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-22 00:17:41,007 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-22 00:17:41,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 00:17:41,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 00:17:41,007 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-11-22 00:17:41,007 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-11-22 00:17:41,007 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-22 00:17:41,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-22 00:17:41,008 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-22 00:17:41,008 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-22 00:17:41,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_prism54_module_exit_12_2 [2022-11-22 00:17:41,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_prism54_module_exit_12_2 [2022-11-22 00:17:41,008 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-11-22 00:17:41,008 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-11-22 00:17:41,008 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-22 00:17:41,009 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-22 00:17:41,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:17:41,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:17:41,009 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2022-11-22 00:17:41,009 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2022-11-22 00:17:41,009 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-22 00:17:41,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-22 00:17:41,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-22 00:17:41,010 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-22 00:17:41,011 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_clear_mac [2022-11-22 00:17:41,011 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_clear_mac [2022-11-22 00:17:41,011 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_wpa_bss_ie_get [2022-11-22 00:17:41,011 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_wpa_bss_ie_get [2022-11-22 00:17:41,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 00:17:41,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 00:17:41,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 00:17:41,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 00:17:41,012 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-22 00:17:41,012 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-22 00:17:41,012 INFO L130 BoogieDeclarations]: Found specification of procedure handle_request [2022-11-22 00:17:41,012 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_request [2022-11-22 00:17:41,013 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_bring_down [2022-11-22 00:17:41,013 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_bring_down [2022-11-22 00:17:41,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2022-11-22 00:17:41,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2022-11-22 00:17:41,013 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-22 00:17:41,013 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-22 00:17:41,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 00:17:41,014 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 00:17:41,014 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 00:17:41,014 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 00:17:41,014 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-22 00:17:41,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-22 00:17:41,014 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-22 00:17:41,014 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-22 00:17:41,014 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-22 00:17:41,015 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-22 00:17:41,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:17:41,015 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 00:17:41,015 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 00:17:41,015 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_set_state [2022-11-22 00:17:41,015 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_set_state [2022-11-22 00:17:41,015 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2022-11-22 00:17:41,016 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2022-11-22 00:17:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 00:17:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_varlen [2022-11-22 00:17:41,016 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_varlen [2022-11-22 00:17:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-11-22 00:17:41,016 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-11-22 00:17:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2022-11-22 00:17:41,016 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2022-11-22 00:17:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 00:17:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_close [2022-11-22 00:17:41,017 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_close [2022-11-22 00:17:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-22 00:17:41,017 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-22 00:17:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_get_request [2022-11-22 00:17:41,017 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_get_request [2022-11-22 00:17:41,018 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-22 00:17:41,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-22 00:17:41,018 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-22 00:17:41,018 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-22 00:17:41,018 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-22 00:17:41,018 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-22 00:17:41,018 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 00:17:41,019 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 00:17:41,019 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_remove [2022-11-22 00:17:41,019 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_remove [2022-11-22 00:17:41,019 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_w32_flush [2022-11-22 00:17:41,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_w32_flush [2022-11-22 00:17:41,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 00:17:41,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 00:17:41,019 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-22 00:17:41,020 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-22 00:17:41,020 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-11-22 00:17:41,020 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-11-22 00:17:41,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-22 00:17:41,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-22 00:17:41,020 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-22 00:17:41,020 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-22 00:17:41,021 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit_list [2022-11-22 00:17:41,021 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit_list [2022-11-22 00:17:41,021 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-22 00:17:41,021 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-22 00:17:41,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 00:17:41,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 00:17:41,021 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-22 00:17:41,021 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-22 00:17:41,022 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 00:17:41,022 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 00:17:41,022 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgmt_rx_fill [2022-11-22 00:17:41,022 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgmt_rx_fill [2022-11-22 00:17:41,023 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_transaction [2022-11-22 00:17:41,027 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_transaction [2022-11-22 00:17:41,027 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 00:17:41,027 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 00:17:41,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 00:17:41,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 00:17:41,027 INFO L130 BoogieDeclarations]: Found specification of procedure channel_of_freq [2022-11-22 00:17:41,027 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_of_freq [2022-11-22 00:17:41,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:17:41,028 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-22 00:17:41,028 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-22 00:17:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-22 00:17:41,030 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-22 00:17:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 00:17:41,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 00:17:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_free_memory [2022-11-22 00:17:41,030 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_free_memory [2022-11-22 00:17:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_islpci_acl [2022-11-22 00:17:41,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_islpci_acl [2022-11-22 00:17:41,031 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit [2022-11-22 00:17:41,031 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit [2022-11-22 00:17:41,031 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-22 00:17:41,031 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-22 00:17:41,031 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32s [2022-11-22 00:17:41,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32s [2022-11-22 00:17:41,032 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-11-22 00:17:41,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-11-22 00:17:41,032 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-22 00:17:41,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-22 00:17:41,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 00:17:41,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 00:17:41,032 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-22 00:17:41,032 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-22 00:17:41,033 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-22 00:17:41,033 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-22 00:17:41,033 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_in_queue [2022-11-22 00:17:41,033 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_in_queue [2022-11-22 00:17:41,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_islpci_acl [2022-11-22 00:17:41,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_islpci_acl [2022-11-22 00:17:41,033 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-22 00:17:41,033 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-22 00:17:41,034 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-22 00:17:41,034 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-22 00:17:41,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:17:41,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 00:17:41,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 00:17:41,034 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-22 00:17:41,034 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-22 00:17:41,034 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_disable_interrupts [2022-11-22 00:17:41,035 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_disable_interrupts [2022-11-22 00:17:42,266 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:17:42,274 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:17:42,940 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 00:17:51,314 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 00:17:51,714 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:17:53,963 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:17:53,963 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-22 00:17:53,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:17:53 BoogieIcfgContainer [2022-11-22 00:17:53,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:17:53,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:17:53,973 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:17:53,977 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:17:53,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:17:33" (1/3) ... [2022-11-22 00:17:53,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fff9421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:17:53, skipping insertion in model container [2022-11-22 00:17:53,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:17:39" (2/3) ... [2022-11-22 00:17:53,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fff9421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:17:53, skipping insertion in model container [2022-11-22 00:17:53,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:17:53" (3/3) ... [2022-11-22 00:17:53,982 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i [2022-11-22 00:17:54,002 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:17:54,003 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-22 00:17:54,110 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:17:54,119 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@548a7388, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:17:54,120 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-22 00:17:54,133 INFO L276 IsEmpty]: Start isEmpty. Operand has 1848 states, 1096 states have (on average 1.311131386861314) internal successors, (1437), 1146 states have internal predecessors, (1437), 618 states have call successors, (618), 131 states have call predecessors, (618), 130 states have return successors, (612), 593 states have call predecessors, (612), 612 states have call successors, (612) [2022-11-22 00:17:54,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-22 00:17:54,161 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:17:54,162 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:17:54,163 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-22 00:17:54,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:17:54,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1773094722, now seen corresponding path program 1 times [2022-11-22 00:17:54,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:17:54,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484627681] [2022-11-22 00:17:54,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:17:54,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:17:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:17:55,791 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-11-22 00:17:55,791 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:17:55,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484627681] [2022-11-22 00:17:55,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484627681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:17:55,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:17:55,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:17:55,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297778163] [2022-11-22 00:17:55,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:17:55,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:17:55,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:17:55,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:17:55,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:17:55,854 INFO L87 Difference]: Start difference. First operand has 1848 states, 1096 states have (on average 1.311131386861314) internal successors, (1437), 1146 states have internal predecessors, (1437), 618 states have call successors, (618), 131 states have call predecessors, (618), 130 states have return successors, (612), 593 states have call predecessors, (612), 612 states have call successors, (612) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-22 00:18:01,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:18:01,224 INFO L93 Difference]: Finished difference Result 5449 states and 8044 transitions. [2022-11-22 00:18:01,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:18:01,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 81 [2022-11-22 00:18:01,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:18:01,286 INFO L225 Difference]: With dead ends: 5449 [2022-11-22 00:18:01,286 INFO L226 Difference]: Without dead ends: 3604 [2022-11-22 00:18:01,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:18:01,316 INFO L413 NwaCegarLoop]: 2896 mSDtfsCounter, 2566 mSDsluCounter, 2277 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2566 SdHoareTripleChecker+Valid, 5173 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:18:01,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2566 Valid, 5173 Invalid, 717 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-22 00:18:01,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3604 states. [2022-11-22 00:18:01,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3604 to 3598. [2022-11-22 00:18:01,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3598 states, 2147 states have (on average 1.3041453190498369) internal successors, (2800), 2245 states have internal predecessors, (2800), 1191 states have call successors, (1191), 257 states have call predecessors, (1191), 256 states have return successors, (1187), 1149 states have call predecessors, (1187), 1187 states have call successors, (1187) [2022-11-22 00:18:01,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3598 states to 3598 states and 5178 transitions. [2022-11-22 00:18:01,966 INFO L78 Accepts]: Start accepts. Automaton has 3598 states and 5178 transitions. Word has length 81 [2022-11-22 00:18:01,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:18:01,969 INFO L495 AbstractCegarLoop]: Abstraction has 3598 states and 5178 transitions. [2022-11-22 00:18:01,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-22 00:18:01,970 INFO L276 IsEmpty]: Start isEmpty. Operand 3598 states and 5178 transitions. [2022-11-22 00:18:01,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-22 00:18:01,982 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:18:01,982 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:18:01,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:18:01,983 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-22 00:18:01,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:18:01,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1078823123, now seen corresponding path program 1 times [2022-11-22 00:18:01,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:18:01,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737559098] [2022-11-22 00:18:01,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:18:01,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:18:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:18:03,091 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-11-22 00:18:03,091 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:18:03,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737559098] [2022-11-22 00:18:03,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737559098] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:18:03,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:18:03,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:18:03,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584688365] [2022-11-22 00:18:03,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:18:03,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:18:03,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:18:03,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:18:03,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:18:03,102 INFO L87 Difference]: Start difference. First operand 3598 states and 5178 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-22 00:18:08,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:18:08,885 INFO L93 Difference]: Finished difference Result 8958 states and 12889 transitions. [2022-11-22 00:18:08,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:18:08,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 81 [2022-11-22 00:18:08,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:18:08,931 INFO L225 Difference]: With dead ends: 8958 [2022-11-22 00:18:08,931 INFO L226 Difference]: Without dead ends: 5373 [2022-11-22 00:18:08,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:18:08,953 INFO L413 NwaCegarLoop]: 2898 mSDtfsCounter, 2567 mSDsluCounter, 2287 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2567 SdHoareTripleChecker+Valid, 5185 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:18:08,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2567 Valid, 5185 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-22 00:18:08,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5373 states. [2022-11-22 00:18:09,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5373 to 5351. [2022-11-22 00:18:09,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5351 states, 3190 states have (on average 1.3031347962382445) internal successors, (4157), 3339 states have internal predecessors, (4157), 1772 states have call successors, (1772), 386 states have call predecessors, (1772), 385 states have return successors, (1768), 1706 states have call predecessors, (1768), 1768 states have call successors, (1768) [2022-11-22 00:18:09,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5351 states to 5351 states and 7697 transitions. [2022-11-22 00:18:09,328 INFO L78 Accepts]: Start accepts. Automaton has 5351 states and 7697 transitions. Word has length 81 [2022-11-22 00:18:09,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:18:09,331 INFO L495 AbstractCegarLoop]: Abstraction has 5351 states and 7697 transitions. [2022-11-22 00:18:09,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-22 00:18:09,332 INFO L276 IsEmpty]: Start isEmpty. Operand 5351 states and 7697 transitions. [2022-11-22 00:18:09,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-22 00:18:09,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:18:09,335 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:18:09,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:18:09,335 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-22 00:18:09,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:18:09,348 INFO L85 PathProgramCache]: Analyzing trace with hash 776213406, now seen corresponding path program 1 times [2022-11-22 00:18:09,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:18:09,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553323714] [2022-11-22 00:18:09,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:18:09,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:18:09,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:18:12,010 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-11-22 00:18:12,011 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:18:12,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553323714] [2022-11-22 00:18:12,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553323714] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:18:12,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:18:12,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 00:18:12,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388960505] [2022-11-22 00:18:12,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:18:12,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 00:18:12,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:18:12,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 00:18:12,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:18:12,015 INFO L87 Difference]: Start difference. First operand 5351 states and 7697 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-22 00:18:25,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:18:30,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:18:30,870 INFO L93 Difference]: Finished difference Result 16156 states and 23117 transitions. [2022-11-22 00:18:30,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 00:18:30,872 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2022-11-22 00:18:30,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:18:30,961 INFO L225 Difference]: With dead ends: 16156 [2022-11-22 00:18:30,962 INFO L226 Difference]: Without dead ends: 10818 [2022-11-22 00:18:30,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:18:31,004 INFO L413 NwaCegarLoop]: 3303 mSDtfsCounter, 6096 mSDsluCounter, 5371 mSDsCounter, 0 mSdLazyCounter, 3441 mSolverCounterSat, 936 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6230 SdHoareTripleChecker+Valid, 8674 SdHoareTripleChecker+Invalid, 4377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 936 IncrementalHoareTripleChecker+Valid, 3441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2022-11-22 00:18:31,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6230 Valid, 8674 Invalid, 4377 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [936 Valid, 3441 Invalid, 0 Unknown, 0 Unchecked, 17.7s Time] [2022-11-22 00:18:31,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10818 states. [2022-11-22 00:18:31,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10818 to 10766. [2022-11-22 00:18:31,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10766 states, 6478 states have (on average 1.302562519296079) internal successors, (8438), 6806 states have internal predecessors, (8438), 3450 states have call successors, (3450), 839 states have call predecessors, (3450), 834 states have return successors, (3446), 3294 states have call predecessors, (3446), 3446 states have call successors, (3446) [2022-11-22 00:18:31,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10766 states to 10766 states and 15334 transitions. [2022-11-22 00:18:31,818 INFO L78 Accepts]: Start accepts. Automaton has 10766 states and 15334 transitions. Word has length 84 [2022-11-22 00:18:31,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:18:31,819 INFO L495 AbstractCegarLoop]: Abstraction has 10766 states and 15334 transitions. [2022-11-22 00:18:31,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-22 00:18:31,820 INFO L276 IsEmpty]: Start isEmpty. Operand 10766 states and 15334 transitions. [2022-11-22 00:18:31,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-22 00:18:31,826 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:18:31,826 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:18:31,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:18:31,827 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-22 00:18:31,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:18:31,828 INFO L85 PathProgramCache]: Analyzing trace with hash 210966089, now seen corresponding path program 1 times [2022-11-22 00:18:31,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:18:31,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767995340] [2022-11-22 00:18:31,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:18:31,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:18:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:18:32,673 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-11-22 00:18:32,673 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:18:32,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767995340] [2022-11-22 00:18:32,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767995340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:18:32,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:18:32,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:18:32,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990177537] [2022-11-22 00:18:32,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:18:32,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:18:32,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:18:32,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:18:32,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:18:32,678 INFO L87 Difference]: Start difference. First operand 10766 states and 15334 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-22 00:18:39,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:18:40,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:18:40,220 INFO L93 Difference]: Finished difference Result 26699 states and 37859 transitions. [2022-11-22 00:18:40,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:18:40,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 91 [2022-11-22 00:18:40,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:18:40,340 INFO L225 Difference]: With dead ends: 26699 [2022-11-22 00:18:40,340 INFO L226 Difference]: Without dead ends: 15946 [2022-11-22 00:18:40,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:18:40,402 INFO L413 NwaCegarLoop]: 2860 mSDtfsCounter, 2451 mSDsluCounter, 2230 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2451 SdHoareTripleChecker+Valid, 5090 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:18:40,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2451 Valid, 5090 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-11-22 00:18:40,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15946 states. [2022-11-22 00:18:41,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15946 to 15898. [2022-11-22 00:18:41,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15898 states, 9560 states have (on average 1.2940376569037657) internal successors, (12371), 10020 states have internal predecessors, (12371), 5044 states have call successors, (5044), 1307 states have call predecessors, (5044), 1290 states have return successors, (5044), 4816 states have call predecessors, (5044), 5040 states have call successors, (5044) [2022-11-22 00:18:41,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15898 states to 15898 states and 22459 transitions. [2022-11-22 00:18:41,533 INFO L78 Accepts]: Start accepts. Automaton has 15898 states and 22459 transitions. Word has length 91 [2022-11-22 00:18:41,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:18:41,534 INFO L495 AbstractCegarLoop]: Abstraction has 15898 states and 22459 transitions. [2022-11-22 00:18:41,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-22 00:18:41,534 INFO L276 IsEmpty]: Start isEmpty. Operand 15898 states and 22459 transitions. [2022-11-22 00:18:41,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-22 00:18:41,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:18:41,539 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:18:41,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 00:18:41,539 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-22 00:18:41,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:18:41,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1647145742, now seen corresponding path program 1 times [2022-11-22 00:18:41,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:18:41,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541961184] [2022-11-22 00:18:41,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:18:41,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:18:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:18:44,242 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-11-22 00:18:44,242 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:18:44,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541961184] [2022-11-22 00:18:44,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541961184] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:18:44,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:18:44,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:18:44,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888938053] [2022-11-22 00:18:44,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:18:44,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:18:44,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:18:44,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:18:44,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:18:44,247 INFO L87 Difference]: Start difference. First operand 15898 states and 22459 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-22 00:18:46,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:18:51,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:18:53,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:18:54,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:18:54,920 INFO L93 Difference]: Finished difference Result 15904 states and 22464 transitions. [2022-11-22 00:18:54,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:18:54,922 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 123 [2022-11-22 00:18:54,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:18:55,033 INFO L225 Difference]: With dead ends: 15904 [2022-11-22 00:18:55,033 INFO L226 Difference]: Without dead ends: 15902 [2022-11-22 00:18:55,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:18:55,054 INFO L413 NwaCegarLoop]: 2290 mSDtfsCounter, 2603 mSDsluCounter, 4572 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2609 SdHoareTripleChecker+Valid, 6862 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:18:55,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2609 Valid, 6862 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1051 Invalid, 1 Unknown, 0 Unchecked, 9.8s Time] [2022-11-22 00:18:55,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15902 states. [2022-11-22 00:18:56,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15902 to 15902. [2022-11-22 00:18:56,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15902 states, 9563 states have (on average 1.2939454146188434) internal successors, (12374), 10023 states have internal predecessors, (12374), 5044 states have call successors, (5044), 1308 states have call predecessors, (5044), 1291 states have return successors, (5044), 4816 states have call predecessors, (5044), 5040 states have call successors, (5044) [2022-11-22 00:18:56,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15902 states to 15902 states and 22462 transitions. [2022-11-22 00:18:56,447 INFO L78 Accepts]: Start accepts. Automaton has 15902 states and 22462 transitions. Word has length 123 [2022-11-22 00:18:56,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:18:56,448 INFO L495 AbstractCegarLoop]: Abstraction has 15902 states and 22462 transitions. [2022-11-22 00:18:56,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-22 00:18:56,448 INFO L276 IsEmpty]: Start isEmpty. Operand 15902 states and 22462 transitions. [2022-11-22 00:18:56,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-22 00:18:56,452 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:18:56,453 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2022-11-22 00:18:56,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 00:18:56,453 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-22 00:18:56,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:18:56,454 INFO L85 PathProgramCache]: Analyzing trace with hash -210931868, now seen corresponding path program 1 times [2022-11-22 00:18:56,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:18:56,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744124652] [2022-11-22 00:18:56,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:18:56,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:18:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:18:59,001 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2022-11-22 00:18:59,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:18:59,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744124652] [2022-11-22 00:18:59,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744124652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:18:59,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:18:59,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:18:59,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887909083] [2022-11-22 00:18:59,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:18:59,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:18:59,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:18:59,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:18:59,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:18:59,005 INFO L87 Difference]: Start difference. First operand 15902 states and 22462 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-22 00:19:06,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:19:06,141 INFO L93 Difference]: Finished difference Result 15908 states and 22467 transitions. [2022-11-22 00:19:06,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:19:06,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 131 [2022-11-22 00:19:06,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:19:06,240 INFO L225 Difference]: With dead ends: 15908 [2022-11-22 00:19:06,240 INFO L226 Difference]: Without dead ends: 15906 [2022-11-22 00:19:06,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:19:06,255 INFO L413 NwaCegarLoop]: 2293 mSDtfsCounter, 2597 mSDsluCounter, 4572 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2602 SdHoareTripleChecker+Valid, 6865 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:19:06,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2602 Valid, 6865 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-11-22 00:19:06,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15906 states. [2022-11-22 00:19:07,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15906 to 15906. [2022-11-22 00:19:07,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15906 states, 9566 states have (on average 1.2938532301902572) internal successors, (12377), 10026 states have internal predecessors, (12377), 5044 states have call successors, (5044), 1309 states have call predecessors, (5044), 1292 states have return successors, (5044), 4816 states have call predecessors, (5044), 5040 states have call successors, (5044) [2022-11-22 00:19:07,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15906 states to 15906 states and 22465 transitions. [2022-11-22 00:19:07,602 INFO L78 Accepts]: Start accepts. Automaton has 15906 states and 22465 transitions. Word has length 131 [2022-11-22 00:19:07,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:19:07,603 INFO L495 AbstractCegarLoop]: Abstraction has 15906 states and 22465 transitions. [2022-11-22 00:19:07,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-22 00:19:07,603 INFO L276 IsEmpty]: Start isEmpty. Operand 15906 states and 22465 transitions. [2022-11-22 00:19:07,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-22 00:19:07,609 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:19:07,609 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 5, 5, 3, 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] [2022-11-22 00:19:07,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 00:19:07,610 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-22 00:19:07,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:19:07,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1344893329, now seen corresponding path program 1 times [2022-11-22 00:19:07,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:19:07,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409824064] [2022-11-22 00:19:07,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:19:07,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:19:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:19:10,160 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2022-11-22 00:19:10,160 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:19:10,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409824064] [2022-11-22 00:19:10,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409824064] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:19:10,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:19:10,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:19:10,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52015698] [2022-11-22 00:19:10,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:19:10,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:19:10,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:19:10,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:19:10,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:19:10,164 INFO L87 Difference]: Start difference. First operand 15906 states and 22465 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-22 00:19:18,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:19:19,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:19:24,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:19:24,273 INFO L93 Difference]: Finished difference Result 30878 states and 43836 transitions. [2022-11-22 00:19:24,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:19:24,275 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 137 [2022-11-22 00:19:24,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:19:24,483 INFO L225 Difference]: With dead ends: 30878 [2022-11-22 00:19:24,483 INFO L226 Difference]: Without dead ends: 30876 [2022-11-22 00:19:24,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:19:24,512 INFO L413 NwaCegarLoop]: 3012 mSDtfsCounter, 2581 mSDsluCounter, 8244 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2585 SdHoareTripleChecker+Valid, 11256 SdHoareTripleChecker+Invalid, 1465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:19:24,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2585 Valid, 11256 Invalid, 1465 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1462 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2022-11-22 00:19:24,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30876 states. [2022-11-22 00:19:26,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30876 to 30834. [2022-11-22 00:19:26,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30834 states, 18535 states have (on average 1.2953871054761263) internal successors, (24010), 19461 states have internal predecessors, (24010), 9832 states have call successors, (9832), 2531 states have call predecessors, (9832), 2463 states have return successors, (9948), 9325 states have call predecessors, (9948), 9824 states have call successors, (9948) [2022-11-22 00:19:26,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30834 states to 30834 states and 43790 transitions. [2022-11-22 00:19:26,993 INFO L78 Accepts]: Start accepts. Automaton has 30834 states and 43790 transitions. Word has length 137 [2022-11-22 00:19:26,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:19:26,994 INFO L495 AbstractCegarLoop]: Abstraction has 30834 states and 43790 transitions. [2022-11-22 00:19:26,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-22 00:19:26,994 INFO L276 IsEmpty]: Start isEmpty. Operand 30834 states and 43790 transitions. [2022-11-22 00:19:26,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-22 00:19:27,000 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:19:27,000 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:19:27,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 00:19:27,001 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-22 00:19:27,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:19:27,002 INFO L85 PathProgramCache]: Analyzing trace with hash -305792136, now seen corresponding path program 1 times [2022-11-22 00:19:27,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:19:27,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530094452] [2022-11-22 00:19:27,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:19:27,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:19:27,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:19:29,524 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2022-11-22 00:19:29,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:19:29,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530094452] [2022-11-22 00:19:29,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530094452] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:19:29,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:19:29,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:19:29,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421975831] [2022-11-22 00:19:29,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:19:29,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:19:29,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:19:29,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:19:29,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:19:29,527 INFO L87 Difference]: Start difference. First operand 30834 states and 43790 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 00:19:43,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:19:43,477 INFO L93 Difference]: Finished difference Result 60150 states and 86594 transitions. [2022-11-22 00:19:43,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:19:43,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 142 [2022-11-22 00:19:43,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:19:43,875 INFO L225 Difference]: With dead ends: 60150 [2022-11-22 00:19:43,876 INFO L226 Difference]: Without dead ends: 60148 [2022-11-22 00:19:43,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:19:43,917 INFO L413 NwaCegarLoop]: 2964 mSDtfsCounter, 2551 mSDsluCounter, 8225 mSDsCounter, 0 mSdLazyCounter, 1438 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2554 SdHoareTripleChecker+Valid, 11189 SdHoareTripleChecker+Invalid, 1441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-11-22 00:19:43,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2554 Valid, 11189 Invalid, 1441 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1438 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2022-11-22 00:19:44,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60148 states. [2022-11-22 00:19:48,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60148 to 60120. [2022-11-22 00:19:48,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60120 states, 36094 states have (on average 1.2952568293899263) internal successors, (46751), 37914 states have internal predecessors, (46751), 19156 states have call successors, (19156), 5002 states have call predecessors, (19156), 4866 states have return successors, (20660), 18123 states have call predecessors, (20660), 19140 states have call successors, (20660) [2022-11-22 00:19:49,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60120 states to 60120 states and 86567 transitions. [2022-11-22 00:19:49,593 INFO L78 Accepts]: Start accepts. Automaton has 60120 states and 86567 transitions. Word has length 142 [2022-11-22 00:19:49,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:19:49,597 INFO L495 AbstractCegarLoop]: Abstraction has 60120 states and 86567 transitions. [2022-11-22 00:19:49,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 00:19:49,598 INFO L276 IsEmpty]: Start isEmpty. Operand 60120 states and 86567 transitions. [2022-11-22 00:19:49,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-22 00:19:49,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:19:49,603 INFO L195 NwaCegarLoop]: trace histogram [11, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:19:49,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 00:19:49,604 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-22 00:19:49,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:19:49,604 INFO L85 PathProgramCache]: Analyzing trace with hash 212827415, now seen corresponding path program 1 times [2022-11-22 00:19:49,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:19:49,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147334488] [2022-11-22 00:19:49,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:19:49,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:19:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:19:51,151 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-22 00:19:51,151 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:19:51,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147334488] [2022-11-22 00:19:51,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147334488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:19:51,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:19:51,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:19:51,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104286491] [2022-11-22 00:19:51,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:19:51,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:19:51,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:19:51,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:19:51,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:19:51,156 INFO L87 Difference]: Start difference. First operand 60120 states and 86567 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-22 00:20:02,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:20:04,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:20:06,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:20:10,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:20:12,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:20:24,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:20:24,884 INFO L93 Difference]: Finished difference Result 203972 states and 293475 transitions. [2022-11-22 00:20:24,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 00:20:24,886 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 138 [2022-11-22 00:20:24,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:20:25,949 INFO L225 Difference]: With dead ends: 203972 [2022-11-22 00:20:25,949 INFO L226 Difference]: Without dead ends: 144316 [2022-11-22 00:20:26,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:20:26,225 INFO L413 NwaCegarLoop]: 4896 mSDtfsCounter, 4469 mSDsluCounter, 6753 mSDsCounter, 0 mSdLazyCounter, 5340 mSolverCounterSat, 150 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4598 SdHoareTripleChecker+Valid, 11649 SdHoareTripleChecker+Invalid, 5491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 5340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:20:26,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4598 Valid, 11649 Invalid, 5491 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [150 Valid, 5340 Invalid, 1 Unknown, 0 Unchecked, 23.9s Time] [2022-11-22 00:20:26,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144316 states.