./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-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF --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 0da9b2775f98d30f03d1fa5b2c7b9aebe5198411fc856f3ea3af31dd47dd5198 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:51:39,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:51:39,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:51:39,482 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:51:39,483 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:51:39,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:51:39,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:51:39,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:51:39,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:51:39,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:51:39,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:51:39,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:51:39,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:51:39,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:51:39,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:51:39,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:51:39,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:51:39,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:51:39,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:51:39,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:51:39,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:51:39,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:51:39,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:51:39,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:51:39,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:51:39,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:51:39,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:51:39,520 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:51:39,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:51:39,522 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:51:39,522 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:51:39,523 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:51:39,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:51:39,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:51:39,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:51:39,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:51:39,527 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:51:39,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:51:39,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:51:39,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:51:39,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:51:39,533 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:51:39,570 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:51:39,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:51:39,572 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:51:39,572 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:51:39,572 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:51:39,572 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:51:39,572 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:51:39,573 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:51:39,573 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:51:39,573 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:51:39,573 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:51:39,574 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:51:39,574 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:51:39,574 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:51:39,574 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:51:39,574 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:51:39,575 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:51:39,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:51:39,576 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:51:39,576 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:51:39,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:51:39,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:51:39,577 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:51:39,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:51:39,577 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:51:39,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:51:39,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:51:39,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:51:39,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:51:39,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:51:39,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:51:39,579 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:51:39,579 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:51:39,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:51:39,579 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:51:39,580 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:51:39,580 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:51:39,580 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_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0da9b2775f98d30f03d1fa5b2c7b9aebe5198411fc856f3ea3af31dd47dd5198 [2021-11-12 22:51:39,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:51:39,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:51:39,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:51:39,896 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:51:39,897 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:51:39,899 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-11-12 22:51:39,968 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/data/f9cfb0f63/4ca04e03acbc47fb8fd1b446885ee0c1/FLAGac03f3ba8 [2021-11-12 22:51:40,909 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:51:40,910 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-11-12 22:51:40,955 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/data/f9cfb0f63/4ca04e03acbc47fb8fd1b446885ee0c1/FLAGac03f3ba8 [2021-11-12 22:51:41,304 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/data/f9cfb0f63/4ca04e03acbc47fb8fd1b446885ee0c1 [2021-11-12 22:51:41,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:51:41,307 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:51:41,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:51:41,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:51:41,314 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:51:41,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:51:41" (1/1) ... [2021-11-12 22:51:41,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b64b373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:41, skipping insertion in model container [2021-11-12 22:51:41,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:51:41" (1/1) ... [2021-11-12 22:51:41,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:51:41,507 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:51:42,749 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,100 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,140 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,159 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,214 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,220 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,231 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,251 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,385 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,409 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,416 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,433 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,440 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,460 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,474 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,510 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,517 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,524 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,537 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,570 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,575 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,586 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,599 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,605 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,612 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,619 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,619 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,626 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,628 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:43,639 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:44,443 WARN L228 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_6730c988-a622-4328-b23b-202f9c2bd986/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[359877,359890] [2021-11-12 22:51:44,446 WARN L228 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_6730c988-a622-4328-b23b-202f9c2bd986/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360046,360059] [2021-11-12 22:51:44,447 WARN L228 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_6730c988-a622-4328-b23b-202f9c2bd986/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360213,360226] [2021-11-12 22:51:44,448 WARN L228 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_6730c988-a622-4328-b23b-202f9c2bd986/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360381,360394] [2021-11-12 22:51:44,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:51:44,613 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) [2021-11-12 22:51:44,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7a4188d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:44, skipping insertion in model container [2021-11-12 22:51:44,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:51:44,615 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:51:44,617 INFO L158 Benchmark]: Toolchain (without parser) took 3308.58ms. Allocated memory was 102.8MB in the beginning and 186.6MB in the end (delta: 83.9MB). Free memory was 66.1MB in the beginning and 116.4MB in the end (delta: -50.3MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. [2021-11-12 22:51:44,618 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 102.8MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:51:44,620 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3306.75ms. Allocated memory was 102.8MB in the beginning and 186.6MB in the end (delta: 83.9MB). Free memory was 66.1MB in the beginning and 116.4MB in the end (delta: -50.3MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. [2021-11-12 22:51:44,622 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 102.8MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3306.75ms. Allocated memory was 102.8MB in the beginning and 186.6MB in the end (delta: 83.9MB). Free memory was 66.1MB in the beginning and 116.4MB in the end (delta: -50.3MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5283]: 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_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF --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 0da9b2775f98d30f03d1fa5b2c7b9aebe5198411fc856f3ea3af31dd47dd5198 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:51:47,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:51:47,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:51:47,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:51:47,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:51:47,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:51:47,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:51:47,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:51:47,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:51:47,058 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:51:47,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:51:47,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:51:47,061 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:51:47,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:51:47,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:51:47,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:51:47,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:51:47,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:51:47,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:51:47,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:51:47,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:51:47,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:51:47,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:51:47,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:51:47,082 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:51:47,082 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:51:47,083 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:51:47,084 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:51:47,084 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:51:47,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:51:47,086 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:51:47,087 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:51:47,088 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:51:47,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:51:47,102 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:51:47,102 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:51:47,103 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:51:47,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:51:47,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:51:47,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:51:47,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:51:47,107 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:51:47,138 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:51:47,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:51:47,139 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:51:47,140 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:51:47,140 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:51:47,140 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:51:47,140 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:51:47,140 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:51:47,141 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:51:47,141 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:51:47,142 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:51:47,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:51:47,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:51:47,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:51:47,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:51:47,146 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:51:47,147 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:51:47,147 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:51:47,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:51:47,148 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:51:47,148 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:51:47,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:51:47,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:51:47,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:51:47,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:51:47,150 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:51:47,150 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:51:47,150 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:51:47,151 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:51:47,151 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:51:47,151 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:51:47,151 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:51:47,152 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:51:47,152 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_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0da9b2775f98d30f03d1fa5b2c7b9aebe5198411fc856f3ea3af31dd47dd5198 [2021-11-12 22:51:47,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:51:47,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:51:47,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:51:47,611 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:51:47,612 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:51:47,613 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-11-12 22:51:47,688 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/data/76c7f3700/fe8f07565235436e963d26a652a59fa7/FLAG4ea91fdbc [2021-11-12 22:51:48,873 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:51:48,873 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-11-12 22:51:48,939 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/data/76c7f3700/fe8f07565235436e963d26a652a59fa7/FLAG4ea91fdbc [2021-11-12 22:51:49,068 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/data/76c7f3700/fe8f07565235436e963d26a652a59fa7 [2021-11-12 22:51:49,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:51:49,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:51:49,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:51:49,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:51:49,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:51:49,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:51:49" (1/1) ... [2021-11-12 22:51:49,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6522c9d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:49, skipping insertion in model container [2021-11-12 22:51:49,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:51:49" (1/1) ... [2021-11-12 22:51:49,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:51:49,307 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:51:52,272 WARN L228 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_6730c988-a622-4328-b23b-202f9c2bd986/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[359877,359890] [2021-11-12 22:51:52,275 WARN L228 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_6730c988-a622-4328-b23b-202f9c2bd986/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360046,360059] [2021-11-12 22:51:52,276 WARN L228 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_6730c988-a622-4328-b23b-202f9c2bd986/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360213,360226] [2021-11-12 22:51:52,277 WARN L228 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_6730c988-a622-4328-b23b-202f9c2bd986/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360381,360394] [2021-11-12 22:51:52,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:51:52,432 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:51:52,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:51:53,119 WARN L228 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_6730c988-a622-4328-b23b-202f9c2bd986/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[359877,359890] [2021-11-12 22:51:53,119 WARN L228 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_6730c988-a622-4328-b23b-202f9c2bd986/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360046,360059] [2021-11-12 22:51:53,120 WARN L228 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_6730c988-a622-4328-b23b-202f9c2bd986/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360213,360226] [2021-11-12 22:51:53,120 WARN L228 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_6730c988-a622-4328-b23b-202f9c2bd986/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360381,360394] [2021-11-12 22:51:53,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:51:53,186 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:51:53,746 WARN L228 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_6730c988-a622-4328-b23b-202f9c2bd986/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[359877,359890] [2021-11-12 22:51:53,746 WARN L228 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_6730c988-a622-4328-b23b-202f9c2bd986/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360046,360059] [2021-11-12 22:51:53,747 WARN L228 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_6730c988-a622-4328-b23b-202f9c2bd986/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360213,360226] [2021-11-12 22:51:53,747 WARN L228 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_6730c988-a622-4328-b23b-202f9c2bd986/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360381,360394] [2021-11-12 22:51:53,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:51:54,106 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:51:54,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:54 WrapperNode [2021-11-12 22:51:54,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:51:54,109 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:51:54,110 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:51:54,110 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:51:54,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:54" (1/1) ... [2021-11-12 22:51:54,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:54" (1/1) ... [2021-11-12 22:51:54,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:51:54,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:51:54,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:51:54,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:51:54,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:54" (1/1) ... [2021-11-12 22:51:54,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:54" (1/1) ... [2021-11-12 22:51:54,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:54" (1/1) ... [2021-11-12 22:51:54,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:54" (1/1) ... [2021-11-12 22:51:55,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:54" (1/1) ... [2021-11-12 22:51:55,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:54" (1/1) ... [2021-11-12 22:51:55,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:54" (1/1) ... [2021-11-12 22:51:55,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:51:55,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:51:55,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:51:55,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:51:55,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:54" (1/1) ... [2021-11-12 22:51:55,199 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:51:55,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:51:55,227 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:51:55,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:51:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure setbrightness [2021-11-12 22:51:55,287 INFO L138 BoogieDeclarations]: Found implementation of procedure setbrightness [2021-11-12 22:51:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure ov519_set_fr [2021-11-12 22:51:55,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ov519_set_fr [2021-11-12 22:51:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_write_sb [2021-11-12 22:51:55,288 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_write_sb [2021-11-12 22:51:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:51:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-12 22:51:55,288 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-12 22:51:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure sd_isoc_init [2021-11-12 22:51:55,289 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_isoc_init [2021-11-12 22:51:55,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:51:55,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:51:55,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 22:51:55,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 22:51:55,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 22:51:55,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 22:51:55,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 22:51:55,290 INFO L130 BoogieDeclarations]: Found specification of procedure usb_altnum_to_altsetting [2021-11-12 22:51:55,290 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_altnum_to_altsetting [2021-11-12 22:51:55,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 22:51:55,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 22:51:55,290 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_upload_quan_tables [2021-11-12 22:51:55,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_upload_quan_tables [2021-11-12 22:51:55,290 INFO L130 BoogieDeclarations]: Found specification of procedure sd_start [2021-11-12 22:51:55,291 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_start [2021-11-12 22:51:55,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 22:51:55,291 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 22:51:55,291 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_frame_add [2021-11-12 22:51:55,292 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_frame_add [2021-11-12 22:51:55,292 INFO L130 BoogieDeclarations]: Found specification of procedure reg_w_mask [2021-11-12 22:51:55,292 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_w_mask [2021-11-12 22:51:55,292 INFO L130 BoogieDeclarations]: Found specification of procedure ov518_i2c_w [2021-11-12 22:51:55,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ov518_i2c_w [2021-11-12 22:51:55,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:51:55,293 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2021-11-12 22:51:55,293 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2021-11-12 22:51:55,293 INFO L130 BoogieDeclarations]: Found specification of procedure ov519_set_mode [2021-11-12 22:51:55,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ov519_set_mode [2021-11-12 22:51:55,293 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_handle_button [2021-11-12 22:51:55,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_handle_button [2021-11-12 22:51:55,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:51:55,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 22:51:55,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 22:51:55,295 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_stop [2021-11-12 22:51:55,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_stop [2021-11-12 22:51:55,296 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_stop [2021-11-12 22:51:55,296 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_stop [2021-11-12 22:51:55,296 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2021-11-12 22:51:55,296 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2021-11-12 22:51:55,296 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2021-11-12 22:51:55,296 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2021-11-12 22:51:55,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 22:51:55,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 22:51:55,297 INFO L130 BoogieDeclarations]: Found specification of procedure sd_reset_snapshot [2021-11-12 22:51:55,297 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_reset_snapshot [2021-11-12 22:51:55,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:51:55,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 22:51:55,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:51:55,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:51:55,298 INFO L130 BoogieDeclarations]: Found specification of procedure mode_init_ov_sensor_regs [2021-11-12 22:51:55,298 INFO L138 BoogieDeclarations]: Found implementation of procedure mode_init_ov_sensor_regs [2021-11-12 22:51:55,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:51:55,299 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_read_ack [2021-11-12 22:51:55,299 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_read_ack [2021-11-12 22:51:55,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-12 22:51:55,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:51:55,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:51:55,300 INFO L130 BoogieDeclarations]: Found specification of procedure write_regvals [2021-11-12 22:51:55,300 INFO L138 BoogieDeclarations]: Found implementation of procedure write_regvals [2021-11-12 22:51:55,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 22:51:55,300 INFO L130 BoogieDeclarations]: Found specification of procedure ov518_reg_w32 [2021-11-12 22:51:55,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ov518_reg_w32 [2021-11-12 22:51:55,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 22:51:55,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 22:51:55,301 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2021-11-12 22:51:55,302 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2021-11-12 22:51:55,302 INFO L130 BoogieDeclarations]: Found specification of procedure write_i2c_regvals [2021-11-12 22:51:55,302 INFO L138 BoogieDeclarations]: Found implementation of procedure write_i2c_regvals [2021-11-12 22:51:55,302 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_write_byte [2021-11-12 22:51:55,302 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_write_byte [2021-11-12 22:51:55,302 INFO L130 BoogieDeclarations]: Found specification of procedure sd_g_volatile_ctrl [2021-11-12 22:51:55,303 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_g_volatile_ctrl [2021-11-12 22:51:55,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 22:51:55,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 22:51:55,303 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_grab [2021-11-12 22:51:55,304 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_grab [2021-11-12 22:51:55,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_2_4 [2021-11-12 22:51:55,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_2_4 [2021-11-12 22:51:55,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-12 22:51:55,304 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-12 22:51:55,304 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-12 22:51:55,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-12 22:51:55,304 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 22:51:55,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 22:51:55,305 INFO L130 BoogieDeclarations]: Found specification of procedure sd_init [2021-11-12 22:51:55,305 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_init [2021-11-12 22:51:55,305 INFO L130 BoogieDeclarations]: Found specification of procedure init_ov_sensor [2021-11-12 22:51:55,305 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ov_sensor [2021-11-12 22:51:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_write_fsb [2021-11-12 22:51:55,306 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_write_fsb [2021-11-12 22:51:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sd_driver_exit_6_2 [2021-11-12 22:51:55,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sd_driver_exit_6_2 [2021-11-12 22:51:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2021-11-12 22:51:55,308 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2021-11-12 22:51:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 22:51:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_disconnect [2021-11-12 22:51:55,311 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_disconnect [2021-11-12 22:51:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 22:51:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_start [2021-11-12 22:51:55,312 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_start [2021-11-12 22:51:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 22:51:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 22:51:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std_menu [2021-11-12 22:51:55,319 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std_menu [2021-11-12 22:51:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_set_crop_window [2021-11-12 22:51:55,319 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_set_crop_window [2021-11-12 22:51:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-12 22:51:55,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-12 22:51:55,320 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_led_control [2021-11-12 22:51:55,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_led_control [2021-11-12 22:51:55,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:51:55,320 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_resume [2021-11-12 22:51:55,320 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_resume [2021-11-12 22:51:55,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-12 22:51:55,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-12 22:51:55,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-12 22:51:55,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-12 22:51:55,321 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_w_mask [2021-11-12 22:51:55,321 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_w_mask [2021-11-12 22:51:55,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 22:51:55,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 22:51:55,321 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-12 22:51:55,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-12 22:51:55,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:51:55,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 22:51:55,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 22:51:55,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 22:51:55,322 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-11-12 22:51:55,322 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-11-12 22:51:55,322 INFO L130 BoogieDeclarations]: Found specification of procedure sd_stopN [2021-11-12 22:51:55,322 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_stopN [2021-11-12 22:51:55,322 INFO L130 BoogieDeclarations]: Found specification of procedure sd_s_ctrl [2021-11-12 22:51:55,323 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_s_ctrl [2021-11-12 22:51:55,323 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_g_ctrl [2021-11-12 22:51:55,323 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_g_ctrl [2021-11-12 22:51:55,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 22:51:55,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 22:51:55,323 INFO L130 BoogieDeclarations]: Found specification of procedure sd_stop0 [2021-11-12 22:51:55,323 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_stop0 [2021-11-12 22:51:55,323 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_restart [2021-11-12 22:51:55,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_restart [2021-11-12 22:51:55,324 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_w [2021-11-12 22:51:55,324 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_w [2021-11-12 22:51:55,324 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_r [2021-11-12 22:51:55,324 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_r [2021-11-12 22:51:55,324 INFO L130 BoogieDeclarations]: Found specification of procedure reg_r8 [2021-11-12 22:51:55,324 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_r8 [2021-11-12 22:51:55,324 INFO L130 BoogieDeclarations]: Found specification of procedure sd_init_controls [2021-11-12 22:51:55,324 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_init_controls [2021-11-12 22:51:55,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 22:51:55,325 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_auto_cluster [2021-11-12 22:51:55,325 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_auto_cluster [2021-11-12 22:51:55,325 INFO L130 BoogieDeclarations]: Found specification of procedure reg_r [2021-11-12 22:51:55,325 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_r [2021-11-12 22:51:55,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-12 22:51:55,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-12 22:51:55,325 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_read_sb [2021-11-12 22:51:55,325 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_read_sb [2021-11-12 22:51:55,326 INFO L130 BoogieDeclarations]: Found specification of procedure reg_w [2021-11-12 22:51:55,326 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_w [2021-11-12 22:51:55,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:51:55,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:52:06,460 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 22:59:13,198 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-12 22:59:14,062 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:59:14,062 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 22:59:14,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:59:14 BoogieIcfgContainer [2021-11-12 22:59:14,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:59:14,072 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:59:14,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:59:14,075 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:59:14,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:51:49" (1/3) ... [2021-11-12 22:59:14,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3393fdac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:59:14, skipping insertion in model container [2021-11-12 22:59:14,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:54" (2/3) ... [2021-11-12 22:59:14,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3393fdac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:59:14, skipping insertion in model container [2021-11-12 22:59:14,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:59:14" (3/3) ... [2021-11-12 22:59:14,079 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-11-12 22:59:14,086 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:59:14,086 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:59:14,157 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:59:14,164 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 [2021-11-12 22:59:14,165 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:59:14,239 INFO L276 IsEmpty]: Start isEmpty. Operand has 2126 states, 1431 states have (on average 1.443046820405311) internal successors, (2065), 1534 states have internal predecessors, (2065), 623 states have call successors, (623), 72 states have call predecessors, (623), 71 states have return successors, (616), 547 states have call predecessors, (616), 616 states have call successors, (616) [2021-11-12 22:59:14,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-12 22:59:14,260 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:59:14,261 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] [2021-11-12 22:59:14,262 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:59:14,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:59:14,268 INFO L85 PathProgramCache]: Analyzing trace with hash -273379345, now seen corresponding path program 1 times [2021-11-12 22:59:14,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:59:14,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339036228] [2021-11-12 22:59:14,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:14,298 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:59:14,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:59:14,302 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:59:14,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:59:26,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:27,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 5024 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:59:27,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:29,889 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-12 22:59:29,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:32,114 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-12 22:59:32,116 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:59:32,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339036228] [2021-11-12 22:59:32,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1339036228] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:59:32,117 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:59:32,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:59:32,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003009431] [2021-11-12 22:59:32,120 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:59:32,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:59:32,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:59:32,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:59:32,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:59:32,185 INFO L87 Difference]: Start difference. First operand has 2126 states, 1431 states have (on average 1.443046820405311) internal successors, (2065), 1534 states have internal predecessors, (2065), 623 states have call successors, (623), 72 states have call predecessors, (623), 71 states have return successors, (616), 547 states have call predecessors, (616), 616 states have call successors, (616) 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) [2021-11-12 22:59:34,891 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:00:32,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:00:32,795 INFO L93 Difference]: Finished difference Result 8261 states and 12907 transitions. [2021-11-12 23:00:32,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:00:32,799 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 [2021-11-12 23:00:32,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:00:32,960 INFO L225 Difference]: With dead ends: 8261 [2021-11-12 23:00:32,960 INFO L226 Difference]: Without dead ends: 6139 [2021-11-12 23:00:33,012 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 [2021-11-12 23:00:33,017 INFO L933 BasicCegarLoop]: 4483 mSDtfsCounter, 8370 mSDsluCounter, 5173 mSDsCounter, 0 mSdLazyCounter, 1277 mSolverCounterSat, 1196 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58413.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8370 SdHoareTripleChecker+Valid, 9656 SdHoareTripleChecker+Invalid, 2474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 89.37ms SdHoareTripleChecker+Time, 1196 IncrementalHoareTripleChecker+Valid, 1277 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59763.94ms IncrementalHoareTripleChecker+Time [2021-11-12 23:00:33,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8370 Valid, 9656 Invalid, 2474 Unknown, 0 Unchecked, 89.37ms Time], IncrementalHoareTripleChecker [1196 Valid, 1277 Invalid, 1 Unknown, 0 Unchecked, 59763.94ms Time] [2021-11-12 23:00:33,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6139 states. [2021-11-12 23:00:33,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6139 to 6127. [2021-11-12 23:00:33,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6127 states, 4146 states have (on average 1.449831162566329) internal successors, (6011), 4455 states have internal predecessors, (6011), 1774 states have call successors, (1774), 207 states have call predecessors, (1774), 206 states have return successors, (1770), 1563 states have call predecessors, (1770), 1770 states have call successors, (1770) [2021-11-12 23:00:33,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6127 states to 6127 states and 9555 transitions. [2021-11-12 23:00:33,826 INFO L78 Accepts]: Start accepts. Automaton has 6127 states and 9555 transitions. Word has length 129 [2021-11-12 23:00:33,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:00:33,828 INFO L470 AbstractCegarLoop]: Abstraction has 6127 states and 9555 transitions. [2021-11-12 23:00:33,828 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) [2021-11-12 23:00:33,828 INFO L276 IsEmpty]: Start isEmpty. Operand 6127 states and 9555 transitions. [2021-11-12 23:00:33,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-12 23:00:33,864 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:00:33,865 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] [2021-11-12 23:00:34,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:00:34,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:00:34,089 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:00:34,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:00:34,090 INFO L85 PathProgramCache]: Analyzing trace with hash 944523105, now seen corresponding path program 1 times [2021-11-12 23:00:34,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:00:34,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [781313955] [2021-11-12 23:00:34,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:00:34,102 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:00:34,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:00:34,103 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:00:34,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:00:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:00:48,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 5152 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:00:48,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:05,639 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-12 23:01:05,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:13,277 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-12 23:01:13,277 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:13,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [781313955] [2021-11-12 23:01:13,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [781313955] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:01:13,278 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:01:13,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-12 23:01:13,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253988418] [2021-11-12 23:01:13,279 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:13,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:01:13,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:13,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:01:13,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:01:13,285 INFO L87 Difference]: Start difference. First operand 6127 states and 9555 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) [2021-11-12 23:01:16,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:01:16,468 INFO L93 Difference]: Finished difference Result 6133 states and 9560 transitions. [2021-11-12 23:01:16,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:01:16,469 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 [2021-11-12 23:01:16,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:01:16,577 INFO L225 Difference]: With dead ends: 6133 [2021-11-12 23:01:16,577 INFO L226 Difference]: Without dead ends: 6131 [2021-11-12 23:01:16,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:01:16,590 INFO L933 BasicCegarLoop]: 3275 mSDtfsCounter, 3193 mSDsluCounter, 9814 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1063.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3198 SdHoareTripleChecker+Valid, 13089 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.89ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1069.30ms IncrementalHoareTripleChecker+Time [2021-11-12 23:01:16,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3198 Valid, 13089 Invalid, 22 Unknown, 0 Unchecked, 34.89ms Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 1069.30ms Time] [2021-11-12 23:01:16,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6131 states. [2021-11-12 23:01:17,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6131 to 6131. [2021-11-12 23:01:17,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6131 states, 4149 states have (on average 1.4495059050373584) internal successors, (6014), 4458 states have internal predecessors, (6014), 1774 states have call successors, (1774), 208 states have call predecessors, (1774), 207 states have return successors, (1770), 1563 states have call predecessors, (1770), 1770 states have call successors, (1770) [2021-11-12 23:01:17,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6131 states to 6131 states and 9558 transitions. [2021-11-12 23:01:17,487 INFO L78 Accepts]: Start accepts. Automaton has 6131 states and 9558 transitions. Word has length 188 [2021-11-12 23:01:17,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:01:17,491 INFO L470 AbstractCegarLoop]: Abstraction has 6131 states and 9558 transitions. [2021-11-12 23:01:17,494 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) [2021-11-12 23:01:17,494 INFO L276 IsEmpty]: Start isEmpty. Operand 6131 states and 9558 transitions. [2021-11-12 23:01:17,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-12 23:01:17,546 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:01:17,546 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] [2021-11-12 23:01:17,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-12 23:01:17,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:01:17,773 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:01:17,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:01:17,774 INFO L85 PathProgramCache]: Analyzing trace with hash 612909612, now seen corresponding path program 1 times [2021-11-12 23:01:17,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:01:17,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1186598500] [2021-11-12 23:01:17,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:17,784 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:01:17,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:01:17,785 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:01:17,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:01:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:31,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 5159 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:01:31,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:50,454 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-12 23:01:50,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:59,188 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-12 23:01:59,188 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:59,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1186598500] [2021-11-12 23:01:59,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1186598500] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:01:59,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:01:59,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-12 23:01:59,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839097570] [2021-11-12 23:01:59,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:59,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:01:59,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:59,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:01:59,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:01:59,194 INFO L87 Difference]: Start difference. First operand 6131 states and 9558 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) [2021-11-12 23:02:01,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:02:01,914 INFO L93 Difference]: Finished difference Result 6137 states and 9563 transitions. [2021-11-12 23:02:01,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:02:01,915 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 [2021-11-12 23:02:01,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:02:02,022 INFO L225 Difference]: With dead ends: 6137 [2021-11-12 23:02:02,023 INFO L226 Difference]: Without dead ends: 6135 [2021-11-12 23:02:02,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:02:02,041 INFO L933 BasicCegarLoop]: 3278 mSDtfsCounter, 3218 mSDsluCounter, 6543 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 577.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3222 SdHoareTripleChecker+Valid, 9821 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.35ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 581.48ms IncrementalHoareTripleChecker+Time [2021-11-12 23:02:02,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3222 Valid, 9821 Invalid, 14 Unknown, 0 Unchecked, 25.35ms Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 581.48ms Time] [2021-11-12 23:02:02,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6135 states. [2021-11-12 23:02:02,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6135 to 6135. [2021-11-12 23:02:02,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6135 states, 4152 states have (on average 1.4491811175337186) internal successors, (6017), 4461 states have internal predecessors, (6017), 1774 states have call successors, (1774), 209 states have call predecessors, (1774), 208 states have return successors, (1770), 1563 states have call predecessors, (1770), 1770 states have call successors, (1770) [2021-11-12 23:02:02,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6135 states to 6135 states and 9561 transitions. [2021-11-12 23:02:02,899 INFO L78 Accepts]: Start accepts. Automaton has 6135 states and 9561 transitions. Word has length 193 [2021-11-12 23:02:02,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:02:02,901 INFO L470 AbstractCegarLoop]: Abstraction has 6135 states and 9561 transitions. [2021-11-12 23:02:02,901 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) [2021-11-12 23:02:02,901 INFO L276 IsEmpty]: Start isEmpty. Operand 6135 states and 9561 transitions. [2021-11-12 23:02:02,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-12 23:02:02,943 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:02:02,944 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] [2021-11-12 23:02:03,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-12 23:02:03,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:02:03,161 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:02:03,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:02:03,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1690475007, now seen corresponding path program 1 times [2021-11-12 23:02:03,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:02:03,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592393384] [2021-11-12 23:02:03,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:02:03,172 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:02:03,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:02:03,173 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:02:03,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:02:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:02:17,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 5166 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:02:17,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:02:38,322 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2021-11-12 23:02:38,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:02:47,152 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2021-11-12 23:02:47,153 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:02:47,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592393384] [2021-11-12 23:02:47,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1592393384] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:02:47,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:02:47,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-12 23:02:47,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114029412] [2021-11-12 23:02:47,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:02:47,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:02:47,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:02:47,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:02:47,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:02:47,159 INFO L87 Difference]: Start difference. First operand 6135 states and 9561 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) [2021-11-12 23:02:49,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:02:49,884 INFO L93 Difference]: Finished difference Result 6141 states and 9566 transitions. [2021-11-12 23:02:49,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:02:49,885 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 [2021-11-12 23:02:49,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:02:49,996 INFO L225 Difference]: With dead ends: 6141 [2021-11-12 23:02:49,996 INFO L226 Difference]: Without dead ends: 6139 [2021-11-12 23:02:50,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:02:50,011 INFO L933 BasicCegarLoop]: 3278 mSDtfsCounter, 3218 mSDsluCounter, 6543 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 654.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3221 SdHoareTripleChecker+Valid, 9821 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.26ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 658.70ms IncrementalHoareTripleChecker+Time [2021-11-12 23:02:50,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3221 Valid, 9821 Invalid, 14 Unknown, 0 Unchecked, 25.26ms Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 658.70ms Time] [2021-11-12 23:02:50,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6139 states. [2021-11-12 23:02:50,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6139 to 6139. [2021-11-12 23:02:50,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6139 states, 4155 states have (on average 1.4488567990373045) internal successors, (6020), 4464 states have internal predecessors, (6020), 1774 states have call successors, (1774), 210 states have call predecessors, (1774), 209 states have return successors, (1770), 1563 states have call predecessors, (1770), 1770 states have call successors, (1770) [2021-11-12 23:02:50,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6139 states to 6139 states and 9564 transitions. [2021-11-12 23:02:50,942 INFO L78 Accepts]: Start accepts. Automaton has 6139 states and 9564 transitions. Word has length 198 [2021-11-12 23:02:50,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:02:50,944 INFO L470 AbstractCegarLoop]: Abstraction has 6139 states and 9564 transitions. [2021-11-12 23:02:50,944 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) [2021-11-12 23:02:50,944 INFO L276 IsEmpty]: Start isEmpty. Operand 6139 states and 9564 transitions. [2021-11-12 23:02:50,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-11-12 23:02:50,990 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:02:50,990 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:02:51,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-12 23:02:51,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:02:51,217 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:02:51,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:02:51,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1685136448, now seen corresponding path program 1 times [2021-11-12 23:02:51,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:02:51,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47866994] [2021-11-12 23:02:51,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:02:51,227 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:02:51,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:02:51,228 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:02:51,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:03:04,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:03:05,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 5216 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:03:05,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:03:09,403 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2021-11-12 23:03:09,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:03:11,297 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2021-11-12 23:03:11,298 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:03:11,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47866994] [2021-11-12 23:03:11,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [47866994] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:03:11,298 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:03:11,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:03:11,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510583253] [2021-11-12 23:03:11,299 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:03:11,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:03:11,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:03:11,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:03:11,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:03:11,301 INFO L87 Difference]: Start difference. First operand 6139 states and 9564 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, (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) [2021-11-12 23:03:13,936 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:04:13,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:04:13,412 INFO L93 Difference]: Finished difference Result 14304 states and 22279 transitions. [2021-11-12 23:04:13,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:04:13,414 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, (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 213 [2021-11-12 23:04:13,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:04:13,553 INFO L225 Difference]: With dead ends: 14304 [2021-11-12 23:04:13,554 INFO L226 Difference]: Without dead ends: 10185 [2021-11-12 23:04:13,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:04:13,646 INFO L933 BasicCegarLoop]: 6990 mSDtfsCounter, 6350 mSDsluCounter, 5836 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60303.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6350 SdHoareTripleChecker+Valid, 12826 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 45.44ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61182.28ms IncrementalHoareTripleChecker+Time [2021-11-12 23:04:13,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6350 Valid, 12826 Invalid, 1269 Unknown, 0 Unchecked, 45.44ms Time], IncrementalHoareTripleChecker [16 Valid, 1252 Invalid, 1 Unknown, 0 Unchecked, 61182.28ms Time] [2021-11-12 23:04:13,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10185 states. [2021-11-12 23:04:14,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10185 to 10161. [2021-11-12 23:04:14,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10161 states, 6881 states have (on average 1.4497892748147072) internal successors, (9976), 7394 states have internal predecessors, (9976), 2933 states have call successors, (2933), 347 states have call predecessors, (2933), 346 states have return successors, (2929), 2584 states have call predecessors, (2929), 2929 states have call successors, (2929) [2021-11-12 23:04:15,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10161 states to 10161 states and 15838 transitions. [2021-11-12 23:04:15,055 INFO L78 Accepts]: Start accepts. Automaton has 10161 states and 15838 transitions. Word has length 213 [2021-11-12 23:04:15,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:04:15,057 INFO L470 AbstractCegarLoop]: Abstraction has 10161 states and 15838 transitions. [2021-11-12 23:04:15,057 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, (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) [2021-11-12 23:04:15,057 INFO L276 IsEmpty]: Start isEmpty. Operand 10161 states and 15838 transitions. [2021-11-12 23:04:15,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-12 23:04:15,101 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:04:15,101 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] [2021-11-12 23:04:15,327 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forcibly destroying the process [2021-11-12 23:04:15,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:04:15,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:04:15,341 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:04:15,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:04:15,342 INFO L85 PathProgramCache]: Analyzing trace with hash 853243660, now seen corresponding path program 1 times [2021-11-12 23:04:15,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:04:15,353 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1914060681] [2021-11-12 23:04:15,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:04:15,353 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:04:15,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:04:15,355 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:04:15,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:04:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:04:29,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 5173 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:04:29,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:04:47,255 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2021-11-12 23:04:47,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:04:53,652 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2021-11-12 23:04:53,653 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:04:53,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1914060681] [2021-11-12 23:04:53,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1914060681] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:04:53,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:04:53,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-12 23:04:53,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038367652] [2021-11-12 23:04:53,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:04:53,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:04:53,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:04:53,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:04:53,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:04:53,656 INFO L87 Difference]: Start difference. First operand 10161 states and 15838 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, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-12 23:04:55,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:04:55,773 INFO L93 Difference]: Finished difference Result 10167 states and 15843 transitions. [2021-11-12 23:04:55,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:04:55,773 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, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 203 [2021-11-12 23:04:55,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:04:55,951 INFO L225 Difference]: With dead ends: 10167 [2021-11-12 23:04:55,952 INFO L226 Difference]: Without dead ends: 10165 [2021-11-12 23:04:55,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:04:55,961 INFO L933 BasicCegarLoop]: 3278 mSDtfsCounter, 3218 mSDsluCounter, 6543 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 466.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3220 SdHoareTripleChecker+Valid, 9821 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.54ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 468.76ms IncrementalHoareTripleChecker+Time [2021-11-12 23:04:55,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3220 Valid, 9821 Invalid, 14 Unknown, 0 Unchecked, 16.54ms Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 468.76ms Time] [2021-11-12 23:04:55,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10165 states. [2021-11-12 23:04:56,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10165 to 10165. [2021-11-12 23:04:56,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10165 states, 6884 states have (on average 1.4495932597327135) internal successors, (9979), 7397 states have internal predecessors, (9979), 2933 states have call successors, (2933), 348 states have call predecessors, (2933), 347 states have return successors, (2929), 2584 states have call predecessors, (2929), 2929 states have call successors, (2929) [2021-11-12 23:04:56,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10165 states to 10165 states and 15841 transitions. [2021-11-12 23:04:56,963 INFO L78 Accepts]: Start accepts. Automaton has 10165 states and 15841 transitions. Word has length 203 [2021-11-12 23:04:56,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:04:56,964 INFO L470 AbstractCegarLoop]: Abstraction has 10165 states and 15841 transitions. [2021-11-12 23:04:56,964 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, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-12 23:04:56,964 INFO L276 IsEmpty]: Start isEmpty. Operand 10165 states and 15841 transitions. [2021-11-12 23:04:57,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-12 23:04:57,008 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:04:57,008 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:04:57,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:04:57,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:04:57,221 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:04:57,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:04:57,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1019056991, now seen corresponding path program 1 times [2021-11-12 23:04:57,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:04:57,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1781061361] [2021-11-12 23:04:57,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:04:57,231 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:04:57,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:04:57,233 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:04:57,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6730c988-a622-4328-b23b-202f9c2bd986/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process