./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 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/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_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs --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 --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:16:01,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:16:01,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:16:01,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:16:01,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:16:01,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:16:01,075 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:16:01,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:16:01,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:16:01,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:16:01,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:16:01,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:16:01,100 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:16:01,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:16:01,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:16:01,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:16:01,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:16:01,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:16:01,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:16:01,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:16:01,123 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:16:01,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:16:01,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:16:01,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:16:01,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:16:01,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:16:01,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:16:01,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:16:01,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:16:01,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:16:01,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:16:01,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:16:01,160 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:16:01,161 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:16:01,163 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:16:01,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:16:01,164 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:16:01,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:16:01,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:16:01,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:16:01,166 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:16:01,167 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:16:01,214 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:16:01,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:16:01,215 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:16:01,215 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:16:01,215 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:16:01,216 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:16:01,216 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:16:01,216 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:16:01,216 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:16:01,216 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:16:01,217 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:16:01,217 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:16:01,217 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:16:01,217 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:16:01,218 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:16:01,218 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:16:01,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:16:01,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:16:01,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:16:01,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:16:01,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:16:01,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:16:01,220 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:16:01,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:16:01,220 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:16:01,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:16:01,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:16:01,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:16:01,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:16:01,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:16:01,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:16:01,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:16:01,222 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:16:01,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:16:01,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:16:01,223 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:16:01,223 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:16:01,223 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2bf48d35d7133b2e8327bc0634357c212875c286543fcf18078150bbf7eff020 [2021-11-19 14:16:01,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:16:01,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:16:01,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:16:01,500 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:16:01,501 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:16:01,502 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i [2021-11-19 14:16:01,578 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/data/4eef18819/38ece9a6f26f496799d8ce558a66ea60/FLAGd50874345 [2021-11-19 14:16:02,726 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:16:02,728 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i [2021-11-19 14:16:02,808 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/data/4eef18819/38ece9a6f26f496799d8ce558a66ea60/FLAGd50874345 [2021-11-19 14:16:02,995 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/data/4eef18819/38ece9a6f26f496799d8ce558a66ea60 [2021-11-19 14:16:02,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:16:03,002 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:16:03,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:16:03,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:16:03,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:16:03,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:16:02" (1/1) ... [2021-11-19 14:16:03,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1837a853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:03, skipping insertion in model container [2021-11-19 14:16:03,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:16:02" (1/1) ... [2021-11-19 14:16:03,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:16:03,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:16:04,688 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:16:05,667 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:16:06,122 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:16:06,139 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:16:06,141 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:16:06,148 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:16:06,150 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:16:06,173 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:16:06,174 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:16:06,226 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:16:06,227 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:16:06,229 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:16:06,231 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:16:06,233 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:16:06,233 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:16:06,234 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:16:06,266 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:16:06,272 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:16:08,088 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/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] [2021-11-19 14:16:08,092 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/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] [2021-11-19 14:16:08,092 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/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] [2021-11-19 14:16:08,093 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/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] [2021-11-19 14:16:08,127 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:16:08,255 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:16:08,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@291d1754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:08, skipping insertion in model container [2021-11-19 14:16:08,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:16:08,257 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:16:08,260 INFO L158 Benchmark]: Toolchain (without parser) took 5256.53ms. Allocated memory was 115.3MB in the beginning and 148.9MB in the end (delta: 33.6MB). Free memory was 64.7MB in the beginning and 64.3MB in the end (delta: 452.5kB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. [2021-11-19 14:16:08,262 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory is still 70.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:16:08,263 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5253.29ms. Allocated memory was 115.3MB in the beginning and 148.9MB in the end (delta: 33.6MB). Free memory was 64.5MB in the beginning and 64.3MB in the end (delta: 182.8kB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. [2021-11-19 14:16:08,265 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory is still 70.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5253.29ms. Allocated memory was 115.3MB in the beginning and 148.9MB in the end (delta: 33.6MB). Free memory was 64.5MB in the beginning and 64.3MB in the end (delta: 182.8kB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5959]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/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_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs --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 --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:16:10,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:16:10,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:16:10,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:16:10,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:16:10,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:16:10,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:16:10,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:16:10,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:16:10,653 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:16:10,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:16:10,656 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:16:10,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:16:10,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:16:10,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:16:10,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:16:10,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:16:10,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:16:10,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:16:10,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:16:10,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:16:10,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:16:10,689 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:16:10,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:16:10,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:16:10,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:16:10,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:16:10,705 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:16:10,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:16:10,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:16:10,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:16:10,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:16:10,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:16:10,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:16:10,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:16:10,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:16:10,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:16:10,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:16:10,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:16:10,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:16:10,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:16:10,720 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:16:10,770 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:16:10,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:16:10,772 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:16:10,772 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:16:10,772 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:16:10,773 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:16:10,773 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:16:10,773 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:16:10,774 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:16:10,774 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:16:10,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:16:10,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:16:10,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:16:10,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:16:10,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:16:10,778 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:16:10,778 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:16:10,778 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:16:10,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:16:10,779 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:16:10,779 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:16:10,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:16:10,780 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:16:10,780 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:16:10,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:16:10,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:16:10,781 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:16:10,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:16:10,782 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:16:10,782 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:16:10,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:16:10,782 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:16:10,783 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:16:10,783 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2bf48d35d7133b2e8327bc0634357c212875c286543fcf18078150bbf7eff020 [2021-11-19 14:16:11,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:16:11,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:16:11,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:16:11,252 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:16:11,253 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:16:11,255 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i [2021-11-19 14:16:11,343 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/data/35fba771f/b9595e5738134ff2a0101c56ef9dac94/FLAGd2de4a1b3 [2021-11-19 14:16:12,471 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:16:12,472 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i [2021-11-19 14:16:12,525 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/data/35fba771f/b9595e5738134ff2a0101c56ef9dac94/FLAGd2de4a1b3 [2021-11-19 14:16:12,717 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/data/35fba771f/b9595e5738134ff2a0101c56ef9dac94 [2021-11-19 14:16:12,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:16:12,720 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:16:12,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:16:12,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:16:12,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:16:12,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:16:12" (1/1) ... [2021-11-19 14:16:12,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65d96dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:12, skipping insertion in model container [2021-11-19 14:16:12,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:16:12" (1/1) ... [2021-11-19 14:16:12,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:16:12,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:16:18,022 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/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] [2021-11-19 14:16:18,025 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/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] [2021-11-19 14:16:18,026 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/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] [2021-11-19 14:16:18,026 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/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] [2021-11-19 14:16:18,060 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:16:18,198 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:16:18,315 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:16:18,940 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/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] [2021-11-19 14:16:18,941 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/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] [2021-11-19 14:16:18,941 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/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] [2021-11-19 14:16:18,942 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/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] [2021-11-19 14:16:18,952 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:16:19,062 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:16:19,737 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/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] [2021-11-19 14:16:19,738 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/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] [2021-11-19 14:16:19,738 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/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] [2021-11-19 14:16:19,739 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/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] [2021-11-19 14:16:19,754 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:16:20,150 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:16:20,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:20 WrapperNode [2021-11-19 14:16:20,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:16:20,157 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:16:20,157 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:16:20,158 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:16:20,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:20" (1/1) ... [2021-11-19 14:16:20,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:20" (1/1) ... [2021-11-19 14:16:20,949 INFO L137 Inliner]: procedures = 553, calls = 6232, calls flagged for inlining = 274, calls inlined = 248, statements flattened = 8662 [2021-11-19 14:16:20,949 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:16:20,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:16:20,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:16:20,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:16:20,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:20" (1/1) ... [2021-11-19 14:16:20,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:20" (1/1) ... [2021-11-19 14:16:21,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:20" (1/1) ... [2021-11-19 14:16:21,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:20" (1/1) ... [2021-11-19 14:16:21,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:20" (1/1) ... [2021-11-19 14:16:21,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:20" (1/1) ... [2021-11-19 14:16:21,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:20" (1/1) ... [2021-11-19 14:16:21,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:16:21,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:16:21,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:16:21,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:16:21,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:20" (1/1) ... [2021-11-19 14:16:21,593 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:16:21,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:16:21,620 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:16:21,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:16:21,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_or_killable_lock_of_islpci_acl [2021-11-19 14:16:21,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_or_killable_lock_of_islpci_acl [2021-11-19 14:16:21,775 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2021-11-19 14:16:21,775 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2021-11-19 14:16:21,775 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_eth_tx_timeout [2021-11-19 14:16:21,775 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_eth_tx_timeout [2021-11-19 14:16:21,775 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-19 14:16:21,775 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 14:16:21,775 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 14:16:21,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 14:16:21,776 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 14:16:21,776 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_trigger [2021-11-19 14:16:21,776 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_trigger [2021-11-19 14:16:21,776 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 14:16:21,776 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 14:16:21,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:16:21,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:16:21,777 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_mib_mode_helper [2021-11-19 14:16:21,777 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_mib_mode_helper [2021-11-19 14:16:21,777 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 14:16:21,777 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 14:16:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-19 14:16:21,778 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-19 14:16:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-19 14:16:21,778 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-19 14:16:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_request [2021-11-19 14:16:21,778 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_request [2021-11-19 14:16:21,779 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2021-11-19 14:16:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2021-11-19 14:16:21,779 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-19 14:16:21,779 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_get_state [2021-11-19 14:16:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_get_state [2021-11-19 14:16:21,779 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-19 14:16:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-19 14:16:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:16:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:16:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 14:16:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 14:16:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 14:16:21,781 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 14:16:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_release [2021-11-19 14:16:21,781 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_release [2021-11-19 14:16:21,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:16:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:16:21,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-19 14:16:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-19 14:16:21,783 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-19 14:16:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-19 14:16:21,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_try [2021-11-19 14:16:21,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_try [2021-11-19 14:16:21,784 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-19 14:16:21,784 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-19 14:16:21,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:16:21,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_wpa_lock_of_NOT_ARG_SIGN [2021-11-19 14:16:21,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_wpa_lock_of_NOT_ARG_SIGN [2021-11-19 14:16:21,785 INFO L130 BoogieDeclarations]: Found specification of procedure send_simple_event [2021-11-19 14:16:21,786 INFO L138 BoogieDeclarations]: Found implementation of procedure send_simple_event [2021-11-19 14:16:21,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 14:16:21,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:16:21,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:16:21,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:16:21,787 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-19 14:16:21,788 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-19 14:16:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-19 14:16:21,788 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-19 14:16:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure send_formatted_event [2021-11-19 14:16:21,788 INFO L138 BoogieDeclarations]: Found implementation of procedure send_formatted_event [2021-11-19 14:16:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set [2021-11-19 14:16:21,788 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set [2021-11-19 14:16:21,789 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 14:16:21,789 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 14:16:21,789 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-19 14:16:21,789 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-19 14:16:21,789 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_reset [2021-11-19 14:16:21,789 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_reset [2021-11-19 14:16:21,790 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 14:16:21,790 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 14:16:21,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-19 14:16:21,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-19 14:16:21,791 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2021-11-19 14:16:21,791 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2021-11-19 14:16:21,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:16:21,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:16:21,792 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 14:16:21,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 14:16:21,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 14:16:21,793 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 14:16:21,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 14:16:21,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 14:16:21,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 14:16:21,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 14:16:21,794 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_open [2021-11-19 14:16:21,794 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_open [2021-11-19 14:16:21,794 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_resume [2021-11-19 14:16:21,794 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_resume [2021-11-19 14:16:21,794 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 14:16:21,794 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 14:16:21,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:16:21,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 14:16:21,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 14:16:21,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 14:16:21,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 14:16:21,796 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2021-11-19 14:16:21,798 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2021-11-19 14:16:21,801 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-19 14:16:21,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-19 14:16:21,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:16:21,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:16:21,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:16:21,803 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 14:16:21,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 14:16:21,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:16:21,803 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 14:16:21,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 14:16:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 14:16:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:16:21,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:16:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 14:16:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_stats_lock_of_NOT_ARG_SIGN [2021-11-19 14:16:21,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_stats_lock_of_NOT_ARG_SIGN [2021-11-19 14:16:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-19 14:16:21,811 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-19 14:16:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-19 14:16:21,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-19 14:16:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 14:16:21,811 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 14:16:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_wpa_lock_of_NOT_ARG_SIGN [2021-11-19 14:16:21,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_wpa_lock_of_NOT_ARG_SIGN [2021-11-19 14:16:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-19 14:16:21,812 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-19 14:16:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 14:16:21,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 14:16:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2021-11-19 14:16:21,813 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2021-11-19 14:16:21,813 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-19 14:16:21,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-19 14:16:21,813 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-19 14:16:21,813 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-19 14:16:21,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 14:16:21,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_prism54_module_exit_12_2 [2021-11-19 14:16:21,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_prism54_module_exit_12_2 [2021-11-19 14:16:21,814 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2021-11-19 14:16:21,814 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2021-11-19 14:16:21,814 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-19 14:16:21,814 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-19 14:16:21,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:16:21,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:16:21,815 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2021-11-19 14:16:21,815 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2021-11-19 14:16:21,815 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-19 14:16:21,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-19 14:16:21,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:16:21,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-19 14:16:21,816 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-19 14:16:21,816 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_clear_mac [2021-11-19 14:16:21,816 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_clear_mac [2021-11-19 14:16:21,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:16:21,816 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_wpa_bss_ie_get [2021-11-19 14:16:21,817 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_wpa_bss_ie_get [2021-11-19 14:16:21,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:16:21,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 14:16:21,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:16:21,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:16:21,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:16:21,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:16:21,818 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-19 14:16:21,818 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-19 14:16:21,818 INFO L130 BoogieDeclarations]: Found specification of procedure handle_request [2021-11-19 14:16:21,818 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_request [2021-11-19 14:16:21,818 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_bring_down [2021-11-19 14:16:21,818 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_bring_down [2021-11-19 14:16:21,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2021-11-19 14:16:21,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2021-11-19 14:16:21,819 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-19 14:16:21,819 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-19 14:16:21,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 14:16:21,819 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 14:16:21,821 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 14:16:21,821 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 14:16:21,821 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-19 14:16:21,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-19 14:16:21,822 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-19 14:16:21,822 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-19 14:16:21,822 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-19 14:16:21,822 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-19 14:16:21,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:16:21,822 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 14:16:21,823 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 14:16:21,823 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_set_state [2021-11-19 14:16:21,823 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_set_state [2021-11-19 14:16:21,823 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2021-11-19 14:16:21,823 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2021-11-19 14:16:21,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:16:21,823 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_varlen [2021-11-19 14:16:21,824 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_varlen [2021-11-19 14:16:21,824 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2021-11-19 14:16:21,824 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2021-11-19 14:16:21,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:16:21,824 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2021-11-19 14:16:21,824 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2021-11-19 14:16:21,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:16:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:16:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:16:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:16:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_close [2021-11-19 14:16:21,825 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_close [2021-11-19 14:16:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-19 14:16:21,825 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-19 14:16:21,826 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_get_request [2021-11-19 14:16:21,826 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_get_request [2021-11-19 14:16:21,826 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-19 14:16:21,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-19 14:16:21,826 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-19 14:16:21,826 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-19 14:16:21,827 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-19 14:16:21,827 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-19 14:16:21,827 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 14:16:21,827 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 14:16:21,827 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_remove [2021-11-19 14:16:21,827 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_remove [2021-11-19 14:16:21,827 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_w32_flush [2021-11-19 14:16:21,828 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_w32_flush [2021-11-19 14:16:21,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:16:21,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:16:21,828 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-19 14:16:21,828 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-19 14:16:21,828 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-11-19 14:16:21,829 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-11-19 14:16:21,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 14:16:21,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 14:16:21,830 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-19 14:16:21,834 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-19 14:16:21,834 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit_list [2021-11-19 14:16:21,834 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit_list [2021-11-19 14:16:21,834 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-19 14:16:21,835 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-19 14:16:21,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-19 14:16:21,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-19 14:16:21,835 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-19 14:16:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-19 14:16:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 14:16:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 14:16:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgmt_rx_fill [2021-11-19 14:16:21,900 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgmt_rx_fill [2021-11-19 14:16:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_transaction [2021-11-19 14:16:21,900 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_transaction [2021-11-19 14:16:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 14:16:21,900 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 14:16:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-19 14:16:21,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-19 14:16:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure channel_of_freq [2021-11-19 14:16:21,900 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_of_freq [2021-11-19 14:16:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-11-19 14:16:21,900 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-11-19 14:16:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 14:16:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 14:16:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:16:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 14:16:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-19 14:16:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-19 14:16:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:16:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:16:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_free_memory [2021-11-19 14:16:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_free_memory [2021-11-19 14:16:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_islpci_acl [2021-11-19 14:16:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_islpci_acl [2021-11-19 14:16:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit [2021-11-19 14:16:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit [2021-11-19 14:16:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-19 14:16:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-19 14:16:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32s [2021-11-19 14:16:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32s [2021-11-19 14:16:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-11-19 14:16:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-11-19 14:16:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-19 14:16:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-19 14:16:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:16:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:16:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-19 14:16:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-19 14:16:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-11-19 14:16:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-11-19 14:16:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_in_queue [2021-11-19 14:16:21,903 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_in_queue [2021-11-19 14:16:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_islpci_acl [2021-11-19 14:16:21,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_islpci_acl [2021-11-19 14:16:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-19 14:16:21,903 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-19 14:16:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-19 14:16:21,903 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-19 14:16:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 14:16:21,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 14:16:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-19 14:16:21,903 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-19 14:16:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_disable_interrupts [2021-11-19 14:16:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_disable_interrupts [2021-11-19 14:16:23,102 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:16:23,111 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:16:26,987 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:17:27,302 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 14:17:31,532 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:17:31,565 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:17:31,566 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-19 14:17:31,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:17:31 BoogieIcfgContainer [2021-11-19 14:17:31,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:17:31,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:17:31,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:17:31,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:17:31,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:16:12" (1/3) ... [2021-11-19 14:17:31,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a627f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:17:31, skipping insertion in model container [2021-11-19 14:17:31,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:20" (2/3) ... [2021-11-19 14:17:31,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a627f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:17:31, skipping insertion in model container [2021-11-19 14:17:31,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:17:31" (3/3) ... [2021-11-19 14:17:31,582 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i [2021-11-19 14:17:31,589 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:17:31,589 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-19 14:17:31,659 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:17:31,667 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:17:31,667 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-19 14:17:31,761 INFO L276 IsEmpty]: Start isEmpty. Operand has 2440 states, 1688 states have (on average 1.2938388625592416) internal successors, (2184), 1738 states have internal predecessors, (2184), 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) [2021-11-19 14:17:31,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-19 14:17:31,791 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:31,792 INFO L514 BasicCegarLoop]: trace histogram [7, 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] [2021-11-19 14:17:31,793 INFO L402 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)] === [2021-11-19 14:17:31,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:31,799 INFO L85 PathProgramCache]: Analyzing trace with hash 38973541, now seen corresponding path program 1 times [2021-11-19 14:17:31,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:31,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [323678462] [2021-11-19 14:17:31,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:31,831 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:31,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:31,835 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:31,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:17:39,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:39,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 5161 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:17:40,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:40,467 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-11-19 14:17:40,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:40,936 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-11-19 14:17:40,937 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:40,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [323678462] [2021-11-19 14:17:40,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [323678462] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:17:40,938 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:17:40,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:17:40,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254486098] [2021-11-19 14:17:40,941 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:40,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:17:40,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:40,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:17:40,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:17:40,993 INFO L87 Difference]: Start difference. First operand has 2440 states, 1688 states have (on average 1.2938388625592416) internal successors, (2184), 1738 states have internal predecessors, (2184), 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 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2021-11-19 14:17:43,820 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:17:55,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:55,224 INFO L93 Difference]: Finished difference Result 9496 states and 13774 transitions. [2021-11-19 14:17:55,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:17:55,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 94 [2021-11-19 14:17:55,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:55,345 INFO L225 Difference]: With dead ends: 9496 [2021-11-19 14:17:55,345 INFO L226 Difference]: Without dead ends: 7047 [2021-11-19 14:17:55,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:17:55,403 INFO L933 BasicCegarLoop]: 4543 mSDtfsCounter, 8556 mSDsluCounter, 5261 mSDsCounter, 0 mSdLazyCounter, 1254 mSolverCounterSat, 1189 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8556 SdHoareTripleChecker+Valid, 9804 SdHoareTripleChecker+Invalid, 2444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1189 IncrementalHoareTripleChecker+Valid, 1254 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:55,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8556 Valid, 9804 Invalid, 2444 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1189 Valid, 1254 Invalid, 1 Unknown, 0 Unchecked, 13.4s Time] [2021-11-19 14:17:55,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7047 states. [2021-11-19 14:17:56,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7047 to 7022. [2021-11-19 14:17:56,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7022 states, 4865 states have (on average 1.2645426515930114) internal successors, (6152), 5009 states have internal predecessors, (6152), 1770 states have call successors, (1770), 384 states have call predecessors, (1770), 383 states have return successors, (1766), 1709 states have call predecessors, (1766), 1766 states have call successors, (1766) [2021-11-19 14:17:56,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7022 states to 7022 states and 9688 transitions. [2021-11-19 14:17:56,247 INFO L78 Accepts]: Start accepts. Automaton has 7022 states and 9688 transitions. Word has length 94 [2021-11-19 14:17:56,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:56,250 INFO L470 AbstractCegarLoop]: Abstraction has 7022 states and 9688 transitions. [2021-11-19 14:17:56,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2021-11-19 14:17:56,251 INFO L276 IsEmpty]: Start isEmpty. Operand 7022 states and 9688 transitions. [2021-11-19 14:17:56,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-19 14:17:56,260 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:56,261 INFO L514 BasicCegarLoop]: trace histogram [7, 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] [2021-11-19 14:17:56,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-19 14:17:56,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:56,487 INFO L402 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)] === [2021-11-19 14:17:56,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:56,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1061101067, now seen corresponding path program 1 times [2021-11-19 14:17:56,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:56,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1560918629] [2021-11-19 14:17:56,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:56,502 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:56,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:56,503 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:56,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:18:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:18:04,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 5187 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:18:04,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:18:04,395 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-11-19 14:18:04,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:18:04,786 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-11-19 14:18:04,786 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:18:04,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1560918629] [2021-11-19 14:18:04,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1560918629] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:18:04,787 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:18:04,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:18:04,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802808932] [2021-11-19 14:18:04,788 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:18:04,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:18:04,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:18:04,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:18:04,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:18:04,792 INFO L87 Difference]: Start difference. First operand 7022 states and 9688 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2021-11-19 14:18:07,363 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:18:19,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:18:19,049 INFO L93 Difference]: Finished difference Result 23261 states and 32075 transitions. [2021-11-19 14:18:19,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:18:19,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 95 [2021-11-19 14:18:19,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:18:19,229 INFO L225 Difference]: With dead ends: 23261 [2021-11-19 14:18:19,230 INFO L226 Difference]: Without dead ends: 16256 [2021-11-19 14:18:19,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:18:19,289 INFO L933 BasicCegarLoop]: 4534 mSDtfsCounter, 8537 mSDsluCounter, 5345 mSDsCounter, 0 mSdLazyCounter, 1234 mSolverCounterSat, 1208 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8537 SdHoareTripleChecker+Valid, 9879 SdHoareTripleChecker+Invalid, 2443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1208 IncrementalHoareTripleChecker+Valid, 1234 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:18:19,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8537 Valid, 9879 Invalid, 2443 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1208 Valid, 1234 Invalid, 1 Unknown, 0 Unchecked, 13.3s Time] [2021-11-19 14:18:19,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16256 states. [2021-11-19 14:18:20,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16256 to 16212. [2021-11-19 14:18:20,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16212 states, 11232 states have (on average 1.2627314814814814) internal successors, (14183), 11570 states have internal predecessors, (14183), 4082 states have call successors, (4082), 895 states have call predecessors, (4082), 894 states have return successors, (4078), 3935 states have call predecessors, (4078), 4078 states have call successors, (4078) [2021-11-19 14:18:20,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16212 states to 16212 states and 22343 transitions. [2021-11-19 14:18:20,564 INFO L78 Accepts]: Start accepts. Automaton has 16212 states and 22343 transitions. Word has length 95 [2021-11-19 14:18:20,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:18:20,566 INFO L470 AbstractCegarLoop]: Abstraction has 16212 states and 22343 transitions. [2021-11-19 14:18:20,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2021-11-19 14:18:20,568 INFO L276 IsEmpty]: Start isEmpty. Operand 16212 states and 22343 transitions. [2021-11-19 14:18:20,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-19 14:18:20,572 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:18:20,573 INFO L514 BasicCegarLoop]: trace histogram [7, 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] [2021-11-19 14:18:20,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:18:20,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:18:20,787 INFO L402 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)] === [2021-11-19 14:18:20,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:18:20,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1782373060, now seen corresponding path program 1 times [2021-11-19 14:18:20,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:18:20,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1354529461] [2021-11-19 14:18:20,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:18:20,800 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:18:20,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:18:20,802 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:18:20,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:18:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:18:28,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 5230 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:18:28,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:18:28,876 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-11-19 14:18:28,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:18:29,248 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-11-19 14:18:29,249 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:18:29,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1354529461] [2021-11-19 14:18:29,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1354529461] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:18:29,249 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:18:29,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:18:29,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678804683] [2021-11-19 14:18:29,250 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:18:29,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:18:29,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:18:29,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:18:29,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:18:29,253 INFO L87 Difference]: Start difference. First operand 16212 states and 22343 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-19 14:18:31,836 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:18:40,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:18:40,719 INFO L93 Difference]: Finished difference Result 54152 states and 74395 transitions. [2021-11-19 14:18:40,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:18:40,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 97 [2021-11-19 14:18:40,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:18:41,036 INFO L225 Difference]: With dead ends: 54152 [2021-11-19 14:18:41,036 INFO L226 Difference]: Without dead ends: 37957 [2021-11-19 14:18:41,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:18:41,160 INFO L933 BasicCegarLoop]: 4387 mSDtfsCounter, 5917 mSDsluCounter, 5206 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5917 SdHoareTripleChecker+Valid, 9593 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:18:41,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5917 Valid, 9593 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1301 Invalid, 1 Unknown, 0 Unchecked, 10.0s Time] [2021-11-19 14:18:41,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37957 states. [2021-11-19 14:18:43,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37957 to 37905. [2021-11-19 14:18:43,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37905 states, 26386 states have (on average 1.264647919351171) internal successors, (33369), 27243 states have internal predecessors, (33369), 9268 states have call successors, (9268), 2254 states have call predecessors, (9268), 2247 states have return successors, (9264), 8881 states have call predecessors, (9264), 9264 states have call successors, (9264) [2021-11-19 14:18:43,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37905 states to 37905 states and 51901 transitions. [2021-11-19 14:18:43,905 INFO L78 Accepts]: Start accepts. Automaton has 37905 states and 51901 transitions. Word has length 97 [2021-11-19 14:18:43,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:18:43,908 INFO L470 AbstractCegarLoop]: Abstraction has 37905 states and 51901 transitions. [2021-11-19 14:18:43,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-19 14:18:43,908 INFO L276 IsEmpty]: Start isEmpty. Operand 37905 states and 51901 transitions. [2021-11-19 14:18:43,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-19 14:18:43,919 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:18:43,920 INFO L514 BasicCegarLoop]: trace histogram [7, 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, 1, 1, 1, 1, 1] [2021-11-19 14:18:44,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:18:44,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:18:44,144 INFO L402 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)] === [2021-11-19 14:18:44,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:18:44,144 INFO L85 PathProgramCache]: Analyzing trace with hash -218919595, now seen corresponding path program 1 times [2021-11-19 14:18:44,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:18:44,156 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533085063] [2021-11-19 14:18:44,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:18:44,157 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:18:44,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:18:44,158 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:18:44,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:18:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:18:52,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 5233 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:18:52,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:18:52,980 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-11-19 14:18:52,981 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:18:53,335 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-11-19 14:18:53,335 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:18:53,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533085063] [2021-11-19 14:18:53,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [533085063] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:18:53,336 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:18:53,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:18:53,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519218714] [2021-11-19 14:18:53,336 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:18:53,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:18:53,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:18:53,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:18:53,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:18:53,338 INFO L87 Difference]: Start difference. First operand 37905 states and 51901 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-19 14:18:55,882 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:18:58,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:18:58,489 INFO L93 Difference]: Finished difference Result 98208 states and 133898 transitions. [2021-11-19 14:18:58,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:18:58,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 103 [2021-11-19 14:18:58,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:18:59,158 INFO L225 Difference]: With dead ends: 98208 [2021-11-19 14:18:59,158 INFO L226 Difference]: Without dead ends: 60320 [2021-11-19 14:18:59,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:18:59,327 INFO L933 BasicCegarLoop]: 3906 mSDtfsCounter, 3099 mSDsluCounter, 3245 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3099 SdHoareTripleChecker+Valid, 7151 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:18:59,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3099 Valid, 7151 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2021-11-19 14:18:59,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60320 states. [2021-11-19 14:19:03,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60320 to 60220. [2021-11-19 14:19:03,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60220 states, 42016 states have (on average 1.257877951256664) internal successors, (52851), 43294 states have internal predecessors, (52851), 14482 states have call successors, (14482), 3755 states have call predecessors, (14482), 3718 states have return successors, (14490), 13892 states have call predecessors, (14490), 14478 states have call successors, (14490) [2021-11-19 14:19:03,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60220 states to 60220 states and 81823 transitions. [2021-11-19 14:19:03,900 INFO L78 Accepts]: Start accepts. Automaton has 60220 states and 81823 transitions. Word has length 103 [2021-11-19 14:19:03,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:19:03,911 INFO L470 AbstractCegarLoop]: Abstraction has 60220 states and 81823 transitions. [2021-11-19 14:19:03,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-19 14:19:03,911 INFO L276 IsEmpty]: Start isEmpty. Operand 60220 states and 81823 transitions. [2021-11-19 14:19:03,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-19 14:19:03,917 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:19:03,917 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:19:04,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-19 14:19:04,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:19:04,131 INFO L402 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)] === [2021-11-19 14:19:04,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:19:04,132 INFO L85 PathProgramCache]: Analyzing trace with hash 486913975, now seen corresponding path program 1 times [2021-11-19 14:19:04,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:19:04,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [301204442] [2021-11-19 14:19:04,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:19:04,141 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:19:04,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:19:04,145 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:19:04,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:19:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:19:11,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 5302 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:19:11,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:19:13,148 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2021-11-19 14:19:13,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:19:14,158 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2021-11-19 14:19:14,158 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:19:14,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [301204442] [2021-11-19 14:19:14,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [301204442] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:19:14,159 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:19:14,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-19 14:19:14,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457340498] [2021-11-19 14:19:14,160 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:19:14,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:19:14,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:19:14,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:19:14,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:19:14,162 INFO L87 Difference]: Start difference. First operand 60220 states and 81823 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 14:19:17,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:19:17,500 INFO L93 Difference]: Finished difference Result 60226 states and 81828 transitions. [2021-11-19 14:19:17,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:19:17,500 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 166 [2021-11-19 14:19:17,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:19:17,881 INFO L225 Difference]: With dead ends: 60226 [2021-11-19 14:19:17,881 INFO L226 Difference]: Without dead ends: 60224 [2021-11-19 14:19:17,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:19:17,915 INFO L933 BasicCegarLoop]: 3330 mSDtfsCounter, 3244 mSDsluCounter, 9981 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3250 SdHoareTripleChecker+Valid, 13311 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:19:17,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3250 Valid, 13311 Invalid, 20 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 14:19:18,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60224 states. [2021-11-19 14:19:21,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60224 to 60224. [2021-11-19 14:19:21,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60224 states, 42019 states have (on average 1.257859539732026) internal successors, (52854), 43297 states have internal predecessors, (52854), 14482 states have call successors, (14482), 3756 states have call predecessors, (14482), 3719 states have return successors, (14490), 13892 states have call predecessors, (14490), 14478 states have call successors, (14490) [2021-11-19 14:19:21,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60224 states to 60224 states and 81826 transitions. [2021-11-19 14:19:21,995 INFO L78 Accepts]: Start accepts. Automaton has 60224 states and 81826 transitions. Word has length 166 [2021-11-19 14:19:21,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:19:21,998 INFO L470 AbstractCegarLoop]: Abstraction has 60224 states and 81826 transitions. [2021-11-19 14:19:21,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 14:19:21,998 INFO L276 IsEmpty]: Start isEmpty. Operand 60224 states and 81826 transitions. [2021-11-19 14:19:22,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-19 14:19:22,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:19:22,008 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:19:22,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:19:22,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:19:22,223 INFO L402 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)] === [2021-11-19 14:19:22,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:19:22,223 INFO L85 PathProgramCache]: Analyzing trace with hash -712533819, now seen corresponding path program 1 times [2021-11-19 14:19:22,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:19:22,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1636044637] [2021-11-19 14:19:22,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:19:22,235 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:19:22,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:19:22,236 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:19:22,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:19:29,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:19:30,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 5309 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:19:30,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:19:31,650 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2021-11-19 14:19:31,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:19:32,635 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2021-11-19 14:19:32,635 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:19:32,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1636044637] [2021-11-19 14:19:32,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1636044637] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:19:32,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:19:32,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-11-19 14:19:32,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165157370] [2021-11-19 14:19:32,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:19:32,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:19:32,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:19:32,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:19:32,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:19:32,638 INFO L87 Difference]: Start difference. First operand 60224 states and 81826 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-19 14:19:35,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:19:35,617 INFO L93 Difference]: Finished difference Result 60230 states and 81831 transitions. [2021-11-19 14:19:35,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:19:35,617 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 171 [2021-11-19 14:19:35,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:19:35,935 INFO L225 Difference]: With dead ends: 60230 [2021-11-19 14:19:35,936 INFO L226 Difference]: Without dead ends: 60228 [2021-11-19 14:19:35,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:19:35,965 INFO L933 BasicCegarLoop]: 3333 mSDtfsCounter, 3265 mSDsluCounter, 6652 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3270 SdHoareTripleChecker+Valid, 9985 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:19:35,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3270 Valid, 9985 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 14:19:36,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60228 states. [2021-11-19 14:19:39,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60228 to 60228. [2021-11-19 14:19:39,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60228 states, 42022 states have (on average 1.2578411308362287) internal successors, (52857), 43300 states have internal predecessors, (52857), 14482 states have call successors, (14482), 3757 states have call predecessors, (14482), 3720 states have return successors, (14490), 13892 states have call predecessors, (14490), 14478 states have call successors, (14490) [2021-11-19 14:19:39,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60228 states to 60228 states and 81829 transitions. [2021-11-19 14:19:39,647 INFO L78 Accepts]: Start accepts. Automaton has 60228 states and 81829 transitions. Word has length 171 [2021-11-19 14:19:39,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:19:39,648 INFO L470 AbstractCegarLoop]: Abstraction has 60228 states and 81829 transitions. [2021-11-19 14:19:39,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-19 14:19:39,648 INFO L276 IsEmpty]: Start isEmpty. Operand 60228 states and 81829 transitions. [2021-11-19 14:19:39,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-11-19 14:19:39,655 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:19:39,656 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:19:39,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:19:39,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:19:39,871 INFO L402 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)] === [2021-11-19 14:19:39,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:19:39,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1342916663, now seen corresponding path program 1 times [2021-11-19 14:19:39,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:19:39,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1736410809] [2021-11-19 14:19:39,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:19:39,879 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:19:39,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:19:39,881 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:19:39,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:19:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:19:47,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 5316 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:19:47,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:19:49,109 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-11-19 14:19:49,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:19:50,074 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-11-19 14:19:50,074 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:19:50,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1736410809] [2021-11-19 14:19:50,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1736410809] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:19:50,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:19:50,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-11-19 14:19:50,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133727009] [2021-11-19 14:19:50,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:19:50,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:19:50,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:19:50,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:19:50,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:19:50,077 INFO L87 Difference]: Start difference. First operand 60228 states and 81829 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-19 14:19:55,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:19:55,053 INFO L93 Difference]: Finished difference Result 118474 states and 161662 transitions. [2021-11-19 14:19:55,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:19:55,054 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 176 [2021-11-19 14:19:55,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:19:55,907 INFO L225 Difference]: With dead ends: 118474 [2021-11-19 14:19:55,907 INFO L226 Difference]: Without dead ends: 118472 [2021-11-19 14:19:55,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:19:55,976 INFO L933 BasicCegarLoop]: 4152 mSDtfsCounter, 3265 mSDsluCounter, 11548 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3269 SdHoareTripleChecker+Valid, 15700 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:19:55,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3269 Valid, 15700 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 14:19:56,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118472 states. [2021-11-19 14:20:02,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118472 to 118362. [2021-11-19 14:20:02,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118362 states, 82654 states have (on average 1.2594671764221936) internal successors, (104100), 85276 states have internal predecessors, (104100), 28524 states have call successors, (28524), 7356 states have call predecessors, (28524), 7180 states have return successors, (28912), 27165 states have call predecessors, (28912), 28516 states have call successors, (28912) [2021-11-19 14:20:03,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118362 states to 118362 states and 161536 transitions. [2021-11-19 14:20:03,660 INFO L78 Accepts]: Start accepts. Automaton has 118362 states and 161536 transitions. Word has length 176 [2021-11-19 14:20:03,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:20:03,660 INFO L470 AbstractCegarLoop]: Abstraction has 118362 states and 161536 transitions. [2021-11-19 14:20:03,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-19 14:20:03,661 INFO L276 IsEmpty]: Start isEmpty. Operand 118362 states and 161536 transitions. [2021-11-19 14:20:03,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-19 14:20:03,668 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:20:03,669 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:20:03,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:20:03,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:20:03,895 INFO L402 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)] === [2021-11-19 14:20:03,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:20:03,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1064618543, now seen corresponding path program 1 times [2021-11-19 14:20:03,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:20:03,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [294015563] [2021-11-19 14:20:03,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:20:03,910 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:20:03,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:20:03,912 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:20:03,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bebd339-2033-44dd-8350-4747d5b90a52/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:20:11,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:20:11,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 5374 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:20:11,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:20:12,382 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2021-11-19 14:20:12,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:20:12,903 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2021-11-19 14:20:12,903 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:20:12,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [294015563] [2021-11-19 14:20:12,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [294015563] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:20:12,904 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:20:12,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:20:12,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414270801] [2021-11-19 14:20:12,904 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:20:12,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:20:12,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:20:12,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:20:12,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:20:12,906 INFO L87 Difference]: Start difference. First operand 118362 states and 161536 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2021-11-19 14:20:15,551 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:20:36,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:20:36,973 INFO L93 Difference]: Finished difference Result 351082 states and 479159 transitions. [2021-11-19 14:20:36,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:20:36,974 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 193 [2021-11-19 14:20:36,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:20:38,959 INFO L225 Difference]: With dead ends: 351082 [2021-11-19 14:20:38,959 INFO L226 Difference]: Without dead ends: 233336 [2021-11-19 14:20:39,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:20:39,623 INFO L933 BasicCegarLoop]: 5180 mSDtfsCounter, 7929 mSDsluCounter, 5296 mSDsCounter, 0 mSdLazyCounter, 1248 mSolverCounterSat, 1046 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7929 SdHoareTripleChecker+Valid, 10476 SdHoareTripleChecker+Invalid, 2295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1046 IncrementalHoareTripleChecker+Valid, 1248 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:20:39,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7929 Valid, 10476 Invalid, 2295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1046 Valid, 1248 Invalid, 1 Unknown, 0 Unchecked, 12.0s Time] [2021-11-19 14:20:39,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233336 states.