./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-media-usb-gspca-gspca_ov519.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_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/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_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/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_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/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 0b786c7288de9cf8dd0401decdda2bff73e49ac511bb0e3840e790a5ca68ebcc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:18:37,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:18:37,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:18:37,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:18:37,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:18:37,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:18:37,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:18:37,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:18:37,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:18:37,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:18:37,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:18:37,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:18:37,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:18:37,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:18:37,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:18:37,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:18:37,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:18:37,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:18:37,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:18:37,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:18:37,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:18:37,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:18:37,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:18:37,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:18:37,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:18:37,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:18:37,316 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:18:37,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:18:37,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:18:37,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:18:37,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:18:37,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:18:37,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:18:37,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:18:37,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:18:37,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:18:37,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:18:37,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:18:37,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:18:37,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:18:37,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:18:37,331 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 13:18:37,371 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:18:37,371 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:18:37,372 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:18:37,372 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:18:37,372 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:18:37,372 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:18:37,372 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:18:37,373 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:18:37,373 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:18:37,373 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:18:37,373 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:18:37,373 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:18:37,373 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:18:37,374 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:18:37,374 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:18:37,374 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:18:37,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:18:37,375 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:18:37,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:18:37,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:18:37,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:18:37,375 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:18:37,376 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:18:37,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:18:37,376 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:18:37,376 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:18:37,376 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:18:37,376 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:18:37,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:18:37,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:18:37,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:18:37,377 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:18:37,377 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:18:37,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:18:37,378 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:18:37,378 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:18:37,378 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:18:37,378 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_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b786c7288de9cf8dd0401decdda2bff73e49ac511bb0e3840e790a5ca68ebcc [2021-11-19 13:18:37,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:18:37,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:18:37,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:18:37,708 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:18:37,709 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:18:37,710 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-11-19 13:18:37,784 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/data/cd2c6ab7c/c7a3c56074be48c7b973e397a3f88a9c/FLAG21863de17 [2021-11-19 13:18:38,879 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:18:38,879 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-11-19 13:18:38,944 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/data/cd2c6ab7c/c7a3c56074be48c7b973e397a3f88a9c/FLAG21863de17 [2021-11-19 13:18:39,259 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/data/cd2c6ab7c/c7a3c56074be48c7b973e397a3f88a9c [2021-11-19 13:18:39,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:18:39,262 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:18:39,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:18:39,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:18:39,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:18:39,285 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:18:39" (1/1) ... [2021-11-19 13:18:39,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1514ae58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:39, skipping insertion in model container [2021-11-19 13:18:39,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:18:39" (1/1) ... [2021-11-19 13:18:39,296 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:18:39,498 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:18:40,734 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 13:18:40,971 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 13:18:41,008 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 13:18:41,026 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 13:18:41,081 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 13:18:41,087 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 13:18:41,097 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 13:18:41,117 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 13:18:41,227 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 13:18:41,247 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 13:18:41,255 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 13:18:41,260 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 13:18:41,267 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 13:18:41,275 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 13:18:41,289 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 13:18:41,304 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 13:18:41,311 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 13:18:41,317 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 13:18:41,330 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 13:18:41,363 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 13:18:41,372 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 13:18:41,383 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 13:18:41,395 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 13:18:41,401 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 13:18:41,407 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 13:18:41,413 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 13:18:41,414 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 13:18:41,420 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 13:18:41,421 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 13:18:41,432 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 13:18:42,144 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_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352069,352082] [2021-11-19 13:18:42,149 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_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352235,352248] [2021-11-19 13:18:42,149 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_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352399,352412] [2021-11-19 13:18:42,150 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_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352564,352577] [2021-11-19 13:18:42,166 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:18:42,300 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 13:18:42,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@42146c19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:42, skipping insertion in model container [2021-11-19 13:18:42,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:18:42,301 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:18:42,303 INFO L158 Benchmark]: Toolchain (without parser) took 3039.80ms. Allocated memory was 88.1MB in the beginning and 148.9MB in the end (delta: 60.8MB). Free memory was 54.7MB in the beginning and 76.7MB in the end (delta: -22.0MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2021-11-19 13:18:42,305 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 88.1MB. Free memory was 68.2MB in the beginning and 68.1MB in the end (delta: 42.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:18:42,306 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3021.83ms. Allocated memory was 88.1MB in the beginning and 148.9MB in the end (delta: 60.8MB). Free memory was 54.5MB in the beginning and 76.7MB in the end (delta: -22.2MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2021-11-19 13:18:42,308 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 88.1MB. Free memory was 68.2MB in the beginning and 68.1MB in the end (delta: 42.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3021.83ms. Allocated memory was 88.1MB in the beginning and 148.9MB in the end (delta: 60.8MB). Free memory was 54.5MB in the beginning and 76.7MB in the end (delta: -22.2MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5286]: 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_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/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_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/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_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/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 0b786c7288de9cf8dd0401decdda2bff73e49ac511bb0e3840e790a5ca68ebcc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:18:44,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:18:44,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:18:44,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:18:44,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:18:44,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:18:44,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:18:44,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:18:44,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:18:44,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:18:44,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:18:44,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:18:44,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:18:44,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:18:44,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:18:44,595 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:18:44,596 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:18:44,597 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:18:44,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:18:44,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:18:44,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:18:44,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:18:44,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:18:44,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:18:44,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:18:44,624 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:18:44,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:18:44,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:18:44,630 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:18:44,631 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:18:44,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:18:44,632 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:18:44,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:18:44,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:18:44,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:18:44,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:18:44,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:18:44,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:18:44,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:18:44,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:18:44,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:18:44,653 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 13:18:44,699 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:18:44,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:18:44,701 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:18:44,701 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:18:44,702 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:18:44,702 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:18:44,702 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:18:44,702 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:18:44,703 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:18:44,703 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:18:44,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:18:44,706 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:18:44,706 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:18:44,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:18:44,707 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:18:44,707 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:18:44,707 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:18:44,708 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:18:44,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:18:44,708 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:18:44,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:18:44,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:18:44,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:18:44,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:18:44,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:18:44,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:18:44,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:18:44,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:18:44,710 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:18:44,711 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:18:44,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:18:44,711 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:18:44,711 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:18:44,712 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_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b786c7288de9cf8dd0401decdda2bff73e49ac511bb0e3840e790a5ca68ebcc [2021-11-19 13:18:45,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:18:45,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:18:45,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:18:45,108 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:18:45,109 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:18:45,110 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-11-19 13:18:45,187 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/data/15cac2f15/c9e79200d2ee4ca9a255db395369c376/FLAGcd58b77fc [2021-11-19 13:18:46,224 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:18:46,225 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-11-19 13:18:46,277 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/data/15cac2f15/c9e79200d2ee4ca9a255db395369c376/FLAGcd58b77fc [2021-11-19 13:18:46,562 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/data/15cac2f15/c9e79200d2ee4ca9a255db395369c376 [2021-11-19 13:18:46,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:18:46,567 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:18:46,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:18:46,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:18:46,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:18:46,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:18:46" (1/1) ... [2021-11-19 13:18:46,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@184ba1a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:46, skipping insertion in model container [2021-11-19 13:18:46,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:18:46" (1/1) ... [2021-11-19 13:18:46,583 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:18:46,808 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:18:49,442 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_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352069,352082] [2021-11-19 13:18:49,445 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_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352235,352248] [2021-11-19 13:18:49,446 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_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352399,352412] [2021-11-19 13:18:49,446 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_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352564,352577] [2021-11-19 13:18:49,456 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:18:49,612 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:18:49,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:18:50,257 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_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352069,352082] [2021-11-19 13:18:50,257 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_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352235,352248] [2021-11-19 13:18:50,258 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_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352399,352412] [2021-11-19 13:18:50,258 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_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352564,352577] [2021-11-19 13:18:50,262 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:18:50,323 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:18:50,822 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_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352069,352082] [2021-11-19 13:18:50,822 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_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352235,352248] [2021-11-19 13:18:50,823 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_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352399,352412] [2021-11-19 13:18:50,823 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_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352564,352577] [2021-11-19 13:18:50,827 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:18:51,136 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:18:51,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:51 WrapperNode [2021-11-19 13:18:51,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:18:51,141 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:18:51,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:18:51,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:18:51,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:51" (1/1) ... [2021-11-19 13:18:51,300 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:51" (1/1) ... [2021-11-19 13:18:51,704 INFO L137 Inliner]: procedures = 280, calls = 5685, calls flagged for inlining = 126, calls inlined = 112, statements flattened = 8187 [2021-11-19 13:18:51,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:18:51,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:18:51,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:18:51,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:18:51,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:51" (1/1) ... [2021-11-19 13:18:51,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:51" (1/1) ... [2021-11-19 13:18:51,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:51" (1/1) ... [2021-11-19 13:18:51,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:51" (1/1) ... [2021-11-19 13:18:52,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:51" (1/1) ... [2021-11-19 13:18:52,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:51" (1/1) ... [2021-11-19 13:18:52,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:51" (1/1) ... [2021-11-19 13:18:52,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:18:52,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:18:52,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:18:52,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:18:52,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:51" (1/1) ... [2021-11-19 13:18:52,281 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:18:52,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:18:52,311 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:18:52,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:18:52,371 INFO L130 BoogieDeclarations]: Found specification of procedure setbrightness [2021-11-19 13:18:52,371 INFO L138 BoogieDeclarations]: Found implementation of procedure setbrightness [2021-11-19 13:18:52,371 INFO L130 BoogieDeclarations]: Found specification of procedure ov519_set_fr [2021-11-19 13:18:52,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ov519_set_fr [2021-11-19 13:18:52,372 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_write_sb [2021-11-19 13:18:52,372 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_write_sb [2021-11-19 13:18:52,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:18:52,372 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-19 13:18:52,372 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-19 13:18:52,373 INFO L130 BoogieDeclarations]: Found specification of procedure sd_isoc_init [2021-11-19 13:18:52,373 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_isoc_init [2021-11-19 13:18:52,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 13:18:52,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:18:52,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 13:18:52,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 13:18:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 13:18:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 13:18:52,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 13:18:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure usb_altnum_to_altsetting [2021-11-19 13:18:52,374 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_altnum_to_altsetting [2021-11-19 13:18:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 13:18:52,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 13:18:52,375 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_upload_quan_tables [2021-11-19 13:18:52,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_upload_quan_tables [2021-11-19 13:18:52,375 INFO L130 BoogieDeclarations]: Found specification of procedure sd_start [2021-11-19 13:18:52,375 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_start [2021-11-19 13:18:52,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 13:18:52,376 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 13:18:52,376 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_frame_add [2021-11-19 13:18:52,376 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_frame_add [2021-11-19 13:18:52,377 INFO L130 BoogieDeclarations]: Found specification of procedure reg_w_mask [2021-11-19 13:18:52,377 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_w_mask [2021-11-19 13:18:52,377 INFO L130 BoogieDeclarations]: Found specification of procedure ov518_i2c_w [2021-11-19 13:18:52,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ov518_i2c_w [2021-11-19 13:18:52,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:18:52,377 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2021-11-19 13:18:52,378 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2021-11-19 13:18:52,378 INFO L130 BoogieDeclarations]: Found specification of procedure ov519_set_mode [2021-11-19 13:18:52,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ov519_set_mode [2021-11-19 13:18:52,378 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_handle_button [2021-11-19 13:18:52,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_handle_button [2021-11-19 13:18:52,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:18:52,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 13:18:52,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 13:18:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_stop [2021-11-19 13:18:52,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_stop [2021-11-19 13:18:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_stop [2021-11-19 13:18:52,381 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_stop [2021-11-19 13:18:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2021-11-19 13:18:52,382 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2021-11-19 13:18:52,382 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2021-11-19 13:18:52,382 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2021-11-19 13:18:52,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 13:18:52,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 13:18:52,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-19 13:18:52,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-19 13:18:52,383 INFO L130 BoogieDeclarations]: Found specification of procedure sd_reset_snapshot [2021-11-19 13:18:52,383 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_reset_snapshot [2021-11-19 13:18:52,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 13:18:52,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 13:18:52,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:18:52,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:18:52,385 INFO L130 BoogieDeclarations]: Found specification of procedure mode_init_ov_sensor_regs [2021-11-19 13:18:52,386 INFO L138 BoogieDeclarations]: Found implementation of procedure mode_init_ov_sensor_regs [2021-11-19 13:18:52,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 13:18:52,386 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_read_ack [2021-11-19 13:18:52,386 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_read_ack [2021-11-19 13:18:52,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 13:18:52,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:18:52,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 13:18:52,387 INFO L130 BoogieDeclarations]: Found specification of procedure write_regvals [2021-11-19 13:18:52,387 INFO L138 BoogieDeclarations]: Found implementation of procedure write_regvals [2021-11-19 13:18:52,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 13:18:52,387 INFO L130 BoogieDeclarations]: Found specification of procedure ov518_reg_w32 [2021-11-19 13:18:52,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ov518_reg_w32 [2021-11-19 13:18:52,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 13:18:52,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 13:18:52,388 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2021-11-19 13:18:52,389 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2021-11-19 13:18:52,389 INFO L130 BoogieDeclarations]: Found specification of procedure write_i2c_regvals [2021-11-19 13:18:52,389 INFO L138 BoogieDeclarations]: Found implementation of procedure write_i2c_regvals [2021-11-19 13:18:52,390 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_write_byte [2021-11-19 13:18:52,390 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_write_byte [2021-11-19 13:18:52,390 INFO L130 BoogieDeclarations]: Found specification of procedure sd_g_volatile_ctrl [2021-11-19 13:18:52,390 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_g_volatile_ctrl [2021-11-19 13:18:52,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 13:18:52,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 13:18:52,391 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_grab [2021-11-19 13:18:52,391 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_grab [2021-11-19 13:18:52,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_2_4 [2021-11-19 13:18:52,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_2_4 [2021-11-19 13:18:52,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 13:18:52,391 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 13:18:52,392 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-19 13:18:52,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-19 13:18:52,392 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 13:18:52,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 13:18:52,392 INFO L130 BoogieDeclarations]: Found specification of procedure sd_init [2021-11-19 13:18:52,393 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_init [2021-11-19 13:18:52,393 INFO L130 BoogieDeclarations]: Found specification of procedure init_ov_sensor [2021-11-19 13:18:52,393 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ov_sensor [2021-11-19 13:18:52,393 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_write_fsb [2021-11-19 13:18:52,394 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_write_fsb [2021-11-19 13:18:52,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sd_driver_exit_6_2 [2021-11-19 13:18:52,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sd_driver_exit_6_2 [2021-11-19 13:18:52,398 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2021-11-19 13:18:52,398 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2021-11-19 13:18:52,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 13:18:52,399 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_disconnect [2021-11-19 13:18:52,400 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_disconnect [2021-11-19 13:18:52,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 13:18:52,400 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_start [2021-11-19 13:18:52,401 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_start [2021-11-19 13:18:52,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 13:18:52,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 13:18:52,406 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std_menu [2021-11-19 13:18:52,407 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std_menu [2021-11-19 13:18:52,407 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_set_crop_window [2021-11-19 13:18:52,407 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_set_crop_window [2021-11-19 13:18:52,407 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_led_control [2021-11-19 13:18:52,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_led_control [2021-11-19 13:18:52,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:18:52,408 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_resume [2021-11-19 13:18:52,408 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_resume [2021-11-19 13:18:52,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 13:18:52,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 13:18:52,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 13:18:52,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 13:18:52,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:18:52,409 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_w_mask [2021-11-19 13:18:52,409 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_w_mask [2021-11-19 13:18:52,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 13:18:52,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 13:18:52,409 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 13:18:52,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 13:18:52,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:18:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 13:18:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 13:18:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 13:18:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-11-19 13:18:52,410 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-11-19 13:18:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure sd_stopN [2021-11-19 13:18:52,410 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_stopN [2021-11-19 13:18:52,411 INFO L130 BoogieDeclarations]: Found specification of procedure sd_s_ctrl [2021-11-19 13:18:52,411 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_s_ctrl [2021-11-19 13:18:52,411 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_g_ctrl [2021-11-19 13:18:52,411 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_g_ctrl [2021-11-19 13:18:52,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 13:18:52,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 13:18:52,411 INFO L130 BoogieDeclarations]: Found specification of procedure sd_stop0 [2021-11-19 13:18:52,412 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_stop0 [2021-11-19 13:18:52,412 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_restart [2021-11-19 13:18:52,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_restart [2021-11-19 13:18:52,412 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_w [2021-11-19 13:18:52,412 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_w [2021-11-19 13:18:52,412 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_r [2021-11-19 13:18:52,412 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_r [2021-11-19 13:18:52,413 INFO L130 BoogieDeclarations]: Found specification of procedure reg_r8 [2021-11-19 13:18:52,413 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_r8 [2021-11-19 13:18:52,413 INFO L130 BoogieDeclarations]: Found specification of procedure sd_init_controls [2021-11-19 13:18:52,413 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_init_controls [2021-11-19 13:18:52,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 13:18:52,413 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_auto_cluster [2021-11-19 13:18:52,414 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_auto_cluster [2021-11-19 13:18:52,414 INFO L130 BoogieDeclarations]: Found specification of procedure reg_r [2021-11-19 13:18:52,414 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_r [2021-11-19 13:18:52,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 13:18:52,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 13:18:52,414 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_read_sb [2021-11-19 13:18:52,414 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_read_sb [2021-11-19 13:18:52,414 INFO L130 BoogieDeclarations]: Found specification of procedure reg_w [2021-11-19 13:18:52,415 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_w [2021-11-19 13:18:52,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:18:52,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:18:53,216 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:18:53,219 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:19:03,610 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 13:26:22,116 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 13:26:22,995 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:26:23,019 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:26:23,019 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 13:26:23,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:26:23 BoogieIcfgContainer [2021-11-19 13:26:23,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:26:23,028 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:26:23,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:26:23,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:26:23,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:18:46" (1/3) ... [2021-11-19 13:26:23,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd8f2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:26:23, skipping insertion in model container [2021-11-19 13:26:23,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:51" (2/3) ... [2021-11-19 13:26:23,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd8f2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:26:23, skipping insertion in model container [2021-11-19 13:26:23,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:26:23" (3/3) ... [2021-11-19 13:26:23,035 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-11-19 13:26:23,041 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:26:23,042 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 13:26:23,110 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:26:23,117 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 13:26:23,117 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 13:26:23,191 INFO L276 IsEmpty]: Start isEmpty. Operand has 2124 states, 1431 states have (on average 1.443046820405311) internal successors, (2065), 1534 states have internal predecessors, (2065), 621 states have call successors, (621), 72 states have call predecessors, (621), 71 states have return successors, (614), 545 states have call predecessors, (614), 614 states have call successors, (614) [2021-11-19 13:26:23,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-19 13:26:23,212 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:26:23,213 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:23,213 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:26:23,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:26:23,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1838912498, now seen corresponding path program 1 times [2021-11-19 13:26:23,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:26:23,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [48536975] [2021-11-19 13:26:23,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:26:23,249 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:26:23,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:26:23,253 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:26:23,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:26:33,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:26:34,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 4864 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:26:34,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:26:36,692 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-19 13:26:36,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:26:38,472 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-19 13:26:38,473 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:26:38,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [48536975] [2021-11-19 13:26:38,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [48536975] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:26:38,474 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:26:38,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:26:38,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296447933] [2021-11-19 13:26:38,477 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:26:38,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:26:38,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:26:38,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:26:38,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:26:38,522 INFO L87 Difference]: Start difference. First operand has 2124 states, 1431 states have (on average 1.443046820405311) internal successors, (2065), 1534 states have internal predecessors, (2065), 621 states have call successors, (621), 72 states have call predecessors, (621), 71 states have return successors, (614), 545 states have call predecessors, (614), 614 states have call successors, (614) Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-19 13:26:41,021 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:27:36,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:27:36,481 INFO L93 Difference]: Finished difference Result 8255 states and 12891 transitions. [2021-11-19 13:27:36,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:27:36,485 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 129 [2021-11-19 13:27:36,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:27:36,614 INFO L225 Difference]: With dead ends: 8255 [2021-11-19 13:27:36,615 INFO L226 Difference]: Without dead ends: 6135 [2021-11-19 13:27:36,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:27:36,669 INFO L933 BasicCegarLoop]: 4476 mSDtfsCounter, 8366 mSDsluCounter, 5169 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 1196 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8366 SdHoareTripleChecker+Valid, 9645 SdHoareTripleChecker+Invalid, 2470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1196 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:27:36,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8366 Valid, 9645 Invalid, 2470 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1196 Valid, 1273 Invalid, 1 Unknown, 0 Unchecked, 57.2s Time] [2021-11-19 13:27:36,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6135 states. [2021-11-19 13:27:37,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6135 to 6125. [2021-11-19 13:27:37,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6125 states, 4146 states have (on average 1.449831162566329) internal successors, (6011), 4455 states have internal predecessors, (6011), 1772 states have call successors, (1772), 207 states have call predecessors, (1772), 206 states have return successors, (1768), 1561 states have call predecessors, (1768), 1768 states have call successors, (1768) [2021-11-19 13:27:37,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6125 states to 6125 states and 9551 transitions. [2021-11-19 13:27:37,608 INFO L78 Accepts]: Start accepts. Automaton has 6125 states and 9551 transitions. Word has length 129 [2021-11-19 13:27:37,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:27:37,610 INFO L470 AbstractCegarLoop]: Abstraction has 6125 states and 9551 transitions. [2021-11-19 13:27:37,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-19 13:27:37,610 INFO L276 IsEmpty]: Start isEmpty. Operand 6125 states and 9551 transitions. [2021-11-19 13:27:37,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-19 13:27:37,651 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:27:37,652 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:27:37,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:27:37,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:27:37,878 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:27:37,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:27:37,879 INFO L85 PathProgramCache]: Analyzing trace with hash -723348838, now seen corresponding path program 1 times [2021-11-19 13:27:37,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:27:37,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055642611] [2021-11-19 13:27:37,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:27:37,889 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:27:37,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:27:37,891 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:27:37,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:27:48,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:27:49,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 4992 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:27:49,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:04,742 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-19 13:28:04,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:11,594 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-19 13:28:11,594 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:28:11,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055642611] [2021-11-19 13:28:11,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1055642611] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:28:11,594 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:28:11,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-19 13:28:11,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791073581] [2021-11-19 13:28:11,595 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:28:11,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:28:11,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:28:11,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:28:11,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:28:11,599 INFO L87 Difference]: Start difference. First operand 6125 states and 9551 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 13:28:14,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:28:14,875 INFO L93 Difference]: Finished difference Result 6131 states and 9556 transitions. [2021-11-19 13:28:14,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:28:14,876 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 188 [2021-11-19 13:28:14,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:28:14,991 INFO L225 Difference]: With dead ends: 6131 [2021-11-19 13:28:14,991 INFO L226 Difference]: Without dead ends: 6129 [2021-11-19 13:28:15,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:28:15,009 INFO L933 BasicCegarLoop]: 3271 mSDtfsCounter, 3189 mSDsluCounter, 13075 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3192 SdHoareTripleChecker+Valid, 16346 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:28:15,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3192 Valid, 16346 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-19 13:28:15,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6129 states. [2021-11-19 13:28:15,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6129 to 6129. [2021-11-19 13:28:15,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6129 states, 4149 states have (on average 1.4495059050373584) internal successors, (6014), 4458 states have internal predecessors, (6014), 1772 states have call successors, (1772), 208 states have call predecessors, (1772), 207 states have return successors, (1768), 1561 states have call predecessors, (1768), 1768 states have call successors, (1768) [2021-11-19 13:28:15,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6129 states to 6129 states and 9554 transitions. [2021-11-19 13:28:15,857 INFO L78 Accepts]: Start accepts. Automaton has 6129 states and 9554 transitions. Word has length 188 [2021-11-19 13:28:15,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:28:15,863 INFO L470 AbstractCegarLoop]: Abstraction has 6129 states and 9554 transitions. [2021-11-19 13:28:15,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 13:28:15,864 INFO L276 IsEmpty]: Start isEmpty. Operand 6129 states and 9554 transitions. [2021-11-19 13:28:15,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-19 13:28:15,909 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:28:15,910 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 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] [2021-11-19 13:28:16,126 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forcibly destroying the process [2021-11-19 13:28:16,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:28:16,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:28:16,141 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:28:16,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:28:16,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1381665388, now seen corresponding path program 1 times [2021-11-19 13:28:16,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:28:16,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125614200] [2021-11-19 13:28:16,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:16,151 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:28:16,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:28:16,153 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:28:16,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:28:26,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:28:27,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 4999 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:28:27,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:43,000 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-19 13:28:43,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:49,614 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-19 13:28:49,614 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:28:49,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1125614200] [2021-11-19 13:28:49,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1125614200] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:28:49,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:28:49,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-11-19 13:28:49,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183916536] [2021-11-19 13:28:49,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:28:49,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:28:49,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:28:49,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:28:49,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:28:49,617 INFO L87 Difference]: Start difference. First operand 6129 states and 9554 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-19 13:28:52,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:28:52,280 INFO L93 Difference]: Finished difference Result 6135 states and 9559 transitions. [2021-11-19 13:28:52,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:28:52,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 193 [2021-11-19 13:28:52,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:28:52,395 INFO L225 Difference]: With dead ends: 6135 [2021-11-19 13:28:52,400 INFO L226 Difference]: Without dead ends: 6133 [2021-11-19 13:28:52,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:28:52,420 INFO L933 BasicCegarLoop]: 3274 mSDtfsCounter, 3216 mSDsluCounter, 6537 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3218 SdHoareTripleChecker+Valid, 9811 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:28:52,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3218 Valid, 9811 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-19 13:28:52,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6133 states. [2021-11-19 13:28:53,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6133 to 6133. [2021-11-19 13:28:53,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6133 states, 4152 states have (on average 1.4491811175337186) internal successors, (6017), 4461 states have internal predecessors, (6017), 1772 states have call successors, (1772), 209 states have call predecessors, (1772), 208 states have return successors, (1768), 1561 states have call predecessors, (1768), 1768 states have call successors, (1768) [2021-11-19 13:28:53,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6133 states to 6133 states and 9557 transitions. [2021-11-19 13:28:53,191 INFO L78 Accepts]: Start accepts. Automaton has 6133 states and 9557 transitions. Word has length 193 [2021-11-19 13:28:53,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:28:53,193 INFO L470 AbstractCegarLoop]: Abstraction has 6133 states and 9557 transitions. [2021-11-19 13:28:53,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-19 13:28:53,194 INFO L276 IsEmpty]: Start isEmpty. Operand 6133 states and 9557 transitions. [2021-11-19 13:28:53,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-19 13:28:53,240 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:28:53,240 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:28:53,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-19 13:28:53,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:28:53,466 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:28:53,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:28:53,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1136225900, now seen corresponding path program 1 times [2021-11-19 13:28:53,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:28:53,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881156047] [2021-11-19 13:28:53,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:53,473 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:28:53,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:28:53,474 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:28:53,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:29:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:29:04,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 5049 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:29:04,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:29:07,134 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 438 trivial. 0 not checked. [2021-11-19 13:29:07,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:29:08,622 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2021-11-19 13:29:08,623 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:29:08,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881156047] [2021-11-19 13:29:08,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1881156047] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:29:08,623 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:29:08,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:29:08,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339315208] [2021-11-19 13:29:08,624 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:29:08,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:29:08,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:29:08,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:29:08,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:29:08,626 INFO L87 Difference]: Start difference. First operand 6133 states and 9557 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-19 13:29:11,067 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:30:03,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:30:03,903 INFO L93 Difference]: Finished difference Result 12296 states and 19135 transitions. [2021-11-19 13:30:03,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:30:03,904 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) Word has length 208 [2021-11-19 13:30:03,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:30:04,014 INFO L225 Difference]: With dead ends: 12296 [2021-11-19 13:30:04,015 INFO L226 Difference]: Without dead ends: 8183 [2021-11-19 13:30:04,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:30:04,092 INFO L933 BasicCegarLoop]: 6969 mSDtfsCounter, 6395 mSDsluCounter, 5177 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 605 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6395 SdHoareTripleChecker+Valid, 12146 SdHoareTripleChecker+Invalid, 1872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 605 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.7s IncrementalHoareTripleChecker+Time [2021-11-19 13:30:04,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6395 Valid, 12146 Invalid, 1872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [605 Valid, 1266 Invalid, 1 Unknown, 0 Unchecked, 54.7s Time] [2021-11-19 13:30:04,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8183 states. [2021-11-19 13:30:04,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8183 to 8147. [2021-11-19 13:30:04,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8147 states, 5517 states have (on average 1.4482508609751676) internal successors, (7990), 5928 states have internal predecessors, (7990), 2352 states have call successors, (2352), 278 states have call predecessors, (2352), 277 states have return successors, (2348), 2072 states have call predecessors, (2348), 2348 states have call successors, (2348) [2021-11-19 13:30:04,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8147 states to 8147 states and 12690 transitions. [2021-11-19 13:30:04,966 INFO L78 Accepts]: Start accepts. Automaton has 8147 states and 12690 transitions. Word has length 208 [2021-11-19 13:30:04,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:30:04,967 INFO L470 AbstractCegarLoop]: Abstraction has 8147 states and 12690 transitions. [2021-11-19 13:30:04,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-19 13:30:04,967 INFO L276 IsEmpty]: Start isEmpty. Operand 8147 states and 12690 transitions. [2021-11-19 13:30:05,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-19 13:30:05,010 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:30:05,011 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 2, 2, 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] [2021-11-19 13:30:05,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:30:05,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:30:05,233 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:30:05,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:30:05,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1967407718, now seen corresponding path program 1 times [2021-11-19 13:30:05,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:30:05,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [12999441] [2021-11-19 13:30:05,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:30:05,243 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:30:05,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:30:05,244 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:30:05,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:30:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:30:16,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 5006 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:30:16,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:30:32,430 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2021-11-19 13:30:32,430 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:30:39,160 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2021-11-19 13:30:39,161 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:30:39,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [12999441] [2021-11-19 13:30:39,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [12999441] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:30:39,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:30:39,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-11-19 13:30:39,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001011765] [2021-11-19 13:30:39,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:30:39,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:30:39,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:30:39,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:30:39,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:30:39,163 INFO L87 Difference]: Start difference. First operand 8147 states and 12690 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 13:30:41,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:30:41,604 INFO L93 Difference]: Finished difference Result 8153 states and 12695 transitions. [2021-11-19 13:30:41,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:30:41,605 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 198 [2021-11-19 13:30:41,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:30:41,709 INFO L225 Difference]: With dead ends: 8153 [2021-11-19 13:30:41,710 INFO L226 Difference]: Without dead ends: 8149 [2021-11-19 13:30:41,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:30:41,723 INFO L933 BasicCegarLoop]: 3274 mSDtfsCounter, 3216 mSDsluCounter, 6537 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3217 SdHoareTripleChecker+Valid, 9811 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:30:41,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3217 Valid, 9811 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-19 13:30:41,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8149 states. [2021-11-19 13:30:42,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8149 to 8149. [2021-11-19 13:30:42,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8149 states, 5519 states have (on average 1.4479072295705744) internal successors, (7991), 5929 states have internal predecessors, (7991), 2352 states have call successors, (2352), 279 states have call predecessors, (2352), 277 states have return successors, (2348), 2072 states have call predecessors, (2348), 2348 states have call successors, (2348) [2021-11-19 13:30:42,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8149 states to 8149 states and 12691 transitions. [2021-11-19 13:30:42,691 INFO L78 Accepts]: Start accepts. Automaton has 8149 states and 12691 transitions. Word has length 198 [2021-11-19 13:30:42,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:30:42,693 INFO L470 AbstractCegarLoop]: Abstraction has 8149 states and 12691 transitions. [2021-11-19 13:30:42,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 13:30:42,693 INFO L276 IsEmpty]: Start isEmpty. Operand 8149 states and 12691 transitions. [2021-11-19 13:30:42,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-11-19 13:30:42,741 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:30:42,742 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:30:42,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-19 13:30:42,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:30:42,966 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:30:42,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:30:42,966 INFO L85 PathProgramCache]: Analyzing trace with hash 895740258, now seen corresponding path program 1 times [2021-11-19 13:30:42,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:30:42,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1403614276] [2021-11-19 13:30:42,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:30:42,973 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:30:42,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:30:42,974 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:30:42,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 13:30:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:30:53,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 5055 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:30:53,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:30:56,569 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2021-11-19 13:30:56,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:30:57,943 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2021-11-19 13:30:57,943 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:30:57,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1403614276] [2021-11-19 13:30:57,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1403614276] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:30:57,944 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:30:57,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:30:57,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519550530] [2021-11-19 13:30:57,944 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:30:57,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:30:57,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:30:57,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:30:57,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:30:57,946 INFO L87 Difference]: Start difference. First operand 8149 states and 12691 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 4 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-19 13:31:00,366 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:31:51,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:31:51,368 INFO L93 Difference]: Finished difference Result 18308 states and 28513 transitions. [2021-11-19 13:31:51,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:31:51,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 4 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 212 [2021-11-19 13:31:51,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:31:51,497 INFO L225 Difference]: With dead ends: 18308 [2021-11-19 13:31:51,498 INFO L226 Difference]: Without dead ends: 12179 [2021-11-19 13:31:51,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:31:51,583 INFO L933 BasicCegarLoop]: 6967 mSDtfsCounter, 6378 mSDsluCounter, 5764 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6378 SdHoareTripleChecker+Valid, 12731 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:31:51,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6378 Valid, 12731 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1265 Invalid, 1 Unknown, 0 Unchecked, 52.6s Time] [2021-11-19 13:31:51,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12179 states. [2021-11-19 13:31:52,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12179 to 12159. [2021-11-19 13:31:52,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12159 states, 8235 states have (on average 1.4494231936854887) internal successors, (11936), 8849 states have internal predecessors, (11936), 3510 states have call successors, (3510), 415 states have call predecessors, (3510), 413 states have return successors, (3506), 3092 states have call predecessors, (3506), 3506 states have call successors, (3506) [2021-11-19 13:31:52,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12159 states to 12159 states and 18952 transitions. [2021-11-19 13:31:52,997 INFO L78 Accepts]: Start accepts. Automaton has 12159 states and 18952 transitions. Word has length 212 [2021-11-19 13:31:53,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:31:53,000 INFO L470 AbstractCegarLoop]: Abstraction has 12159 states and 18952 transitions. [2021-11-19 13:31:53,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 4 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-19 13:31:53,000 INFO L276 IsEmpty]: Start isEmpty. Operand 12159 states and 18952 transitions. [2021-11-19 13:31:53,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-19 13:31:53,036 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:31:53,037 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 3, 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] [2021-11-19 13:31:53,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 13:31:53,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:31:53,238 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:31:53,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:31:53,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1128370452, now seen corresponding path program 1 times [2021-11-19 13:31:53,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:31:53,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431167602] [2021-11-19 13:31:53,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:31:53,245 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:31:53,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:31:53,246 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:31:53,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56aac7fb-24d9-4524-85a6-0945b0c0ce9e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 13:32:03,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:32:04,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 5013 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:32:04,317 INFO L286 TraceCheckSpWp]: Computing forward predicates...