./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ce7b7e06b36a72b3de911fb70c1b245fd97c856ddcef7fa1f63b6ddc09812498 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:35:19,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:35:19,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:35:19,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:35:19,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:35:19,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:35:19,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:35:19,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:35:19,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:35:19,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:35:19,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:35:19,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:35:19,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:35:19,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:35:19,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:35:19,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:35:19,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:35:19,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:35:19,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:35:19,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:35:19,609 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:35:19,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:35:19,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:35:19,614 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:35:19,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:35:19,619 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:35:19,619 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:35:19,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:35:19,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:35:19,623 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:35:19,623 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:35:19,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:35:19,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:35:19,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:35:19,628 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:35:19,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:35:19,630 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:35:19,630 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:35:19,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:35:19,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:35:19,632 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:35:19,633 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 13:35:19,663 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:35:19,663 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:35:19,664 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:35:19,664 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:35:19,665 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:35:19,665 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:35:19,665 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:35:19,666 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:35:19,666 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:35:19,666 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:35:19,666 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:35:19,667 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:35:19,667 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:35:19,667 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:35:19,668 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:35:19,668 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:35:19,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:35:19,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:35:19,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:35:19,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:35:19,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:35:19,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:35:19,670 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:35:19,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:35:19,671 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:35:19,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:35:19,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:35:19,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:35:19,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:35:19,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:35:19,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:35:19,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:35:19,673 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:35:19,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:35:19,674 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:35:19,674 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:35:19,674 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:35:19,675 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_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce7b7e06b36a72b3de911fb70c1b245fd97c856ddcef7fa1f63b6ddc09812498 [2021-11-19 13:35:19,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:35:19,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:35:19,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:35:19,995 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:35:19,996 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:35:19,998 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-19 13:35:20,087 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/data/99047cf3e/5e2a876926f545008ec2fb2dfe3c0f9b/FLAG0f76030d2 [2021-11-19 13:35:21,344 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:35:21,345 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-19 13:35:21,462 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/data/99047cf3e/5e2a876926f545008ec2fb2dfe3c0f9b/FLAG0f76030d2 [2021-11-19 13:35:21,968 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/data/99047cf3e/5e2a876926f545008ec2fb2dfe3c0f9b [2021-11-19 13:35:21,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:35:21,973 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:35:21,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:35:21,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:35:21,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:35:21,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:35:21" (1/1) ... [2021-11-19 13:35:21,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1667c29c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:21, skipping insertion in model container [2021-11-19 13:35:21,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:35:21" (1/1) ... [2021-11-19 13:35:21,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:35:22,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:35:25,907 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,242 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,245 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,302 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,306 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,306 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,309 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,309 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,404 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,404 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,416 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,426 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,516 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,518 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,520 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,533 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,756 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,768 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,769 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,865 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,875 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,896 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,913 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,923 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,934 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,946 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,955 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,964 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,973 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,981 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,989 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:26,998 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:27,023 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:27,037 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:27,064 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:27,075 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:27,090 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:27,091 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:27,100 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:27,101 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:27,109 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:27,110 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:27,593 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:27,608 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:27,618 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:27,618 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:27,643 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:27,660 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:35:29,008 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493165,493178] [2021-11-19 13:35:29,011 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493334,493347] [2021-11-19 13:35:29,012 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493501,493514] [2021-11-19 13:35:29,012 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493669,493682] [2021-11-19 13:35:29,048 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:35:29,127 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 13:35:29,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@35ea3a30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:29, skipping insertion in model container [2021-11-19 13:35:29,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:35:29,128 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:35:29,130 INFO L158 Benchmark]: Toolchain (without parser) took 7156.29ms. Allocated memory was 98.6MB in the beginning and 195.0MB in the end (delta: 96.5MB). Free memory was 68.3MB in the beginning and 103.5MB in the end (delta: -35.2MB). Peak memory consumption was 79.8MB. Max. memory is 16.1GB. [2021-11-19 13:35:29,131 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 98.6MB. Free memory was 68.8MB in the beginning and 68.8MB in the end (delta: 26.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:35:29,133 INFO L158 Benchmark]: CACSL2BoogieTranslator took 7154.39ms. Allocated memory was 98.6MB in the beginning and 195.0MB in the end (delta: 96.5MB). Free memory was 68.0MB in the beginning and 103.5MB in the end (delta: -35.5MB). Peak memory consumption was 79.8MB. Max. memory is 16.1GB. [2021-11-19 13:35:29,135 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 98.6MB. Free memory was 68.8MB in the beginning and 68.8MB in the end (delta: 26.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 7154.39ms. Allocated memory was 98.6MB in the beginning and 195.0MB in the end (delta: 96.5MB). Free memory was 68.0MB in the beginning and 103.5MB in the end (delta: -35.5MB). Peak memory consumption was 79.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6988]: 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_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ce7b7e06b36a72b3de911fb70c1b245fd97c856ddcef7fa1f63b6ddc09812498 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:35:31,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:35:31,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:35:31,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:35:31,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:35:31,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:35:31,377 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:35:31,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:35:31,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:35:31,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:35:31,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:35:31,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:35:31,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:35:31,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:35:31,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:35:31,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:35:31,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:35:31,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:35:31,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:35:31,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:35:31,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:35:31,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:35:31,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:35:31,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:35:31,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:35:31,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:35:31,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:35:31,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:35:31,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:35:31,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:35:31,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:35:31,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:35:31,447 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:35:31,448 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:35:31,450 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:35:31,451 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:35:31,452 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:35:31,452 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:35:31,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:35:31,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:35:31,455 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:35:31,457 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 13:35:31,483 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:35:31,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:35:31,484 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:35:31,484 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:35:31,484 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:35:31,485 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:35:31,485 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:35:31,485 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:35:31,485 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:35:31,486 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:35:31,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:35:31,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:35:31,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:35:31,487 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:35:31,487 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:35:31,488 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:35:31,488 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:35:31,488 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:35:31,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:35:31,489 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:35:31,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:35:31,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:35:31,489 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:35:31,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:35:31,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:35:31,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:35:31,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:35:31,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:35:31,491 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:35:31,491 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:35:31,491 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:35:31,492 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:35:31,492 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:35:31,492 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_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce7b7e06b36a72b3de911fb70c1b245fd97c856ddcef7fa1f63b6ddc09812498 [2021-11-19 13:35:31,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:35:31,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:35:31,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:35:31,876 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:35:31,876 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:35:31,878 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-19 13:35:31,945 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/data/5f93b9616/f57c3d242fb04141ab18240651bf31cb/FLAG3c64f462d [2021-11-19 13:35:33,200 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:35:33,201 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-19 13:35:33,281 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/data/5f93b9616/f57c3d242fb04141ab18240651bf31cb/FLAG3c64f462d [2021-11-19 13:35:33,382 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/data/5f93b9616/f57c3d242fb04141ab18240651bf31cb [2021-11-19 13:35:33,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:35:33,385 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:35:33,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:35:33,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:35:33,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:35:33,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:35:33" (1/1) ... [2021-11-19 13:35:33,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32c426ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:33, skipping insertion in model container [2021-11-19 13:35:33,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:35:33" (1/1) ... [2021-11-19 13:35:33,403 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:35:33,613 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:35:39,338 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493165,493178] [2021-11-19 13:35:39,341 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493334,493347] [2021-11-19 13:35:39,342 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493501,493514] [2021-11-19 13:35:39,343 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493669,493682] [2021-11-19 13:35:39,401 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:35:39,504 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:35:39,608 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:35:40,171 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493165,493178] [2021-11-19 13:35:40,172 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493334,493347] [2021-11-19 13:35:40,172 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493501,493514] [2021-11-19 13:35:40,172 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493669,493682] [2021-11-19 13:35:40,180 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:35:40,219 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:35:40,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493165,493178] [2021-11-19 13:35:40,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493334,493347] [2021-11-19 13:35:40,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493501,493514] [2021-11-19 13:35:40,987 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493669,493682] [2021-11-19 13:35:41,016 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:35:41,464 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:35:41,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:41 WrapperNode [2021-11-19 13:35:41,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:35:41,466 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:35:41,466 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:35:41,466 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:35:41,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:41" (1/1) ... [2021-11-19 13:35:41,606 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:41" (1/1) ... [2021-11-19 13:35:41,878 INFO L137 Inliner]: procedures = 703, calls = 4234, calls flagged for inlining = 342, calls inlined = 319, statements flattened = 9944 [2021-11-19 13:35:41,878 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:35:41,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:35:41,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:35:41,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:35:41,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:41" (1/1) ... [2021-11-19 13:35:41,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:41" (1/1) ... [2021-11-19 13:35:42,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:41" (1/1) ... [2021-11-19 13:35:42,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:41" (1/1) ... [2021-11-19 13:35:42,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:41" (1/1) ... [2021-11-19 13:35:42,373 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:41" (1/1) ... [2021-11-19 13:35:42,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:41" (1/1) ... [2021-11-19 13:35:42,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:35:42,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:35:42,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:35:42,482 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:35:42,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:41" (1/1) ... [2021-11-19 13:35:42,490 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:35:42,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:35:42,520 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:35:42,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:35:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-19 13:35:42,575 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-19 13:35:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_read [2021-11-19 13:35:42,576 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_read [2021-11-19 13:35:42,576 INFO L130 BoogieDeclarations]: Found specification of procedure cas_pcs_link_check [2021-11-19 13:35:42,576 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_pcs_link_check [2021-11-19 13:35:42,576 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 13:35:42,576 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 13:35:42,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 13:35:42,577 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 13:35:42,577 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-19 13:35:42,577 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-19 13:35:42,577 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-19 13:35:42,577 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-19 13:35:42,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 13:35:42,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 13:35:42,578 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mii_link_check [2021-11-19 13:35:42,578 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mii_link_check [2021-11-19 13:35:42,578 INFO L130 BoogieDeclarations]: Found specification of procedure cas_calc_tabort [2021-11-19 13:35:42,579 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_calc_tabort [2021-11-19 13:35:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-19 13:35:42,579 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-19 13:35:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-11-19 13:35:42,579 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-11-19 13:35:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 13:35:42,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 13:35:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-19 13:35:42,580 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-19 13:35:42,581 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 13:35:42,581 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 13:35:42,581 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-19 13:35:42,581 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-19 13:35:42,582 INFO L130 BoogieDeclarations]: Found specification of procedure cas_lock_tx [2021-11-19 13:35:42,582 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_lock_tx [2021-11-19 13:35:42,582 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-19 13:35:42,582 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-19 13:35:42,582 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-19 13:35:42,583 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-19 13:35:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure cas_disable_irq [2021-11-19 13:35:42,583 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_disable_irq [2021-11-19 13:35:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure cas_free_rxds [2021-11-19 13:35:42,584 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_free_rxds [2021-11-19 13:35:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_page [2021-11-19 13:35:42,585 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_page [2021-11-19 13:35:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure cas_open [2021-11-19 13:35:42,585 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_open [2021-11-19 13:35:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure cas_interrupt [2021-11-19 13:35:42,586 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_interrupt [2021-11-19 13:35:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_tiny_free [2021-11-19 13:35:42,586 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_tiny_free [2021-11-19 13:35:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-11-19 13:35:42,586 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-11-19 13:35:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_map [2021-11-19 13:35:42,587 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_map [2021-11-19 13:35:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_init [2021-11-19 13:35:42,588 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_init [2021-11-19 13:35:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-11-19 13:35:42,588 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-11-19 13:35:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2021-11-19 13:35:42,589 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2021-11-19 13:35:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-19 13:35:42,589 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-19 13:35:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 13:35:42,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 13:35:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure cas_enable_irq [2021-11-19 13:35:42,590 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_enable_irq [2021-11-19 13:35:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 13:35:42,591 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 13:35:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-19 13:35:42,591 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-19 13:35:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_dequeue [2021-11-19 13:35:42,591 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_dequeue [2021-11-19 13:35:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-11-19 13:35:42,592 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-11-19 13:35:42,592 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 13:35:42,592 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 13:35:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 13:35:42,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 13:35:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-19 13:35:42,593 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-19 13:35:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-19 13:35:42,594 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-19 13:35:42,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:35:42,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_108 [2021-11-19 13:35:42,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_108 [2021-11-19 13:35:42,595 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-11-19 13:35:42,595 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-11-19 13:35:42,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 13:35:42,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:35:42,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 13:35:42,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 13:35:42,596 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_multicast [2021-11-19 13:35:42,596 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_multicast [2021-11-19 13:35:42,596 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-19 13:35:42,596 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-19 13:35:42,597 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-19 13:35:42,597 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-19 13:35:42,597 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_free [2021-11-19 13:35:42,597 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_free [2021-11-19 13:35:42,597 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_timeout [2021-11-19 13:35:42,598 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_timeout [2021-11-19 13:35:42,598 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 13:35:42,598 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 13:35:42,600 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_pcs_link_mode [2021-11-19 13:35:42,603 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_pcs_link_mode [2021-11-19 13:35:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-19 13:35:42,603 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-19 13:35:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure cas_close [2021-11-19 13:35:42,604 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_close [2021-11-19 13:35:42,605 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_swap [2021-11-19 13:35:42,605 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_swap [2021-11-19 13:35:42,605 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 13:35:42,606 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 13:35:42,611 INFO L130 BoogieDeclarations]: Found specification of procedure cas_netpoll [2021-11-19 13:35:42,611 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_netpoll [2021-11-19 13:35:42,611 INFO L130 BoogieDeclarations]: Found specification of procedure cas_hard_reset [2021-11-19 13:35:42,611 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_hard_reset [2021-11-19 13:35:42,611 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-19 13:35:42,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-19 13:35:42,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 13:35:42,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 13:35:42,612 INFO L130 BoogieDeclarations]: Found specification of procedure cas_rxc_init [2021-11-19 13:35:42,612 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_rxc_init [2021-11-19 13:35:42,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 13:35:42,612 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 13:35:42,612 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clear_mac_err [2021-11-19 13:35:42,612 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clear_mac_err [2021-11-19 13:35:42,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 13:35:42,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 13:35:42,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 13:35:42,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 13:35:42,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 13:35:42,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 13:35:42,613 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-19 13:35:42,613 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-19 13:35:42,613 INFO L130 BoogieDeclarations]: Found specification of procedure cas_remove_one [2021-11-19 13:35:42,614 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_remove_one [2021-11-19 13:35:42,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_NOT_ARG_SIGN [2021-11-19 13:35:42,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_NOT_ARG_SIGN [2021-11-19 13:35:42,614 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-19 13:35:42,614 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-19 13:35:42,614 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 13:35:42,615 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 13:35:42,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 13:35:42,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 13:35:42,615 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-19 13:35:42,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-19 13:35:42,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:35:42,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 13:35:42,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 13:35:42,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 13:35:42,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 13:35:42,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-19 13:35:42,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-19 13:35:42,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:35:42,617 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2021-11-19 13:35:42,617 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2021-11-19 13:35:42,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 13:35:42,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 13:35:42,617 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 13:35:42,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 13:35:42,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:35:42,618 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 13:35:42,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 13:35:42,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 13:35:42,618 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 13:35:42,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 13:35:42,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 13:35:42,619 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_link_modes [2021-11-19 13:35:42,619 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_link_modes [2021-11-19 13:35:42,619 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_mii_link_mode [2021-11-19 13:35:42,619 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_mii_link_mode [2021-11-19 13:35:42,619 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2021-11-19 13:35:42,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2021-11-19 13:35:42,620 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-19 13:35:42,620 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-19 13:35:42,620 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-19 13:35:42,620 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-19 13:35:42,620 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2021-11-19 13:35:42,620 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2021-11-19 13:35:42,621 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-19 13:35:42,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-19 13:35:42,621 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 13:35:42,621 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 13:35:42,621 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-19 13:35:42,621 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-19 13:35:42,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 13:35:42,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 13:35:42,622 INFO L130 BoogieDeclarations]: Found specification of procedure csum_unfold [2021-11-19 13:35:42,622 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_unfold [2021-11-19 13:35:42,622 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-19 13:35:42,622 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-19 13:35:42,623 INFO L130 BoogieDeclarations]: Found specification of procedure cas_entropy_gather [2021-11-19 13:35:42,623 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_entropy_gather [2021-11-19 13:35:42,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 13:35:42,623 INFO L130 BoogieDeclarations]: Found specification of procedure cas_resume [2021-11-19 13:35:42,623 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_resume [2021-11-19 13:35:42,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:35:42,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:35:42,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:35:42,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 13:35:42,624 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_alloc [2021-11-19 13:35:42,624 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_alloc [2021-11-19 13:35:42,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:35:42,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 13:35:42,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 13:35:42,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 13:35:42,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 13:35:42,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 13:35:42,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 13:35:42,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 13:35:42,625 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-19 13:35:42,626 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-19 13:35:42,626 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mif_poll [2021-11-19 13:35:42,626 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mif_poll [2021-11-19 13:35:42,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 13:35:42,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 13:35:42,626 INFO L130 BoogieDeclarations]: Found specification of procedure cas_unlock_tx [2021-11-19 13:35:42,627 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_unlock_tx [2021-11-19 13:35:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-19 13:35:42,627 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-19 13:35:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_133 [2021-11-19 13:35:42,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_133 [2021-11-19 13:35:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice [2021-11-19 13:35:42,628 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice [2021-11-19 13:35:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_135 [2021-11-19 13:35:42,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_135 [2021-11-19 13:35:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-19 13:35:42,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-19 13:35:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2021-11-19 13:35:42,629 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2021-11-19 13:35:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-19 13:35:42,629 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-19 13:35:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 13:35:42,629 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 13:35:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 13:35:42,629 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 13:35:42,630 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-19 13:35:42,630 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-19 13:35:42,630 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_buf [2021-11-19 13:35:42,630 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_buf [2021-11-19 13:35:42,630 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mac_reset [2021-11-19 13:35:42,630 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mac_reset [2021-11-19 13:35:42,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_cas [2021-11-19 13:35:42,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_cas [2021-11-19 13:35:42,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:35:42,631 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 13:35:42,631 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 13:35:42,631 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_set_page [2021-11-19 13:35:42,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_set_page [2021-11-19 13:35:42,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:35:42,632 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_regs_len [2021-11-19 13:35:42,632 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_regs_len [2021-11-19 13:35:42,632 INFO L130 BoogieDeclarations]: Found specification of procedure cas_reset [2021-11-19 13:35:42,632 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_reset [2021-11-19 13:35:42,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_NOT_ARG_SIGN [2021-11-19 13:35:42,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_NOT_ARG_SIGN [2021-11-19 13:35:42,633 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-11-19 13:35:42,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-11-19 13:35:42,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 13:35:42,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 13:35:42,633 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_page [2021-11-19 13:35:42,634 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_page [2021-11-19 13:35:42,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 13:35:42,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:35:42,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 13:35:42,634 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-19 13:35:42,634 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-19 13:35:42,634 INFO L130 BoogieDeclarations]: Found specification of procedure cas_nway_reset [2021-11-19 13:35:42,635 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_nway_reset [2021-11-19 13:35:42,635 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-19 13:35:42,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-19 13:35:42,635 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-19 13:35:42,635 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-19 13:35:42,635 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 13:35:42,636 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 13:35:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 13:35:42,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 13:35:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure cas_setup_multicast [2021-11-19 13:35:42,636 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_setup_multicast [2021-11-19 13:35:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_powerdown [2021-11-19 13:35:42,636 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_powerdown [2021-11-19 13:35:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_rxds_ringN [2021-11-19 13:35:42,637 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_rxds_ringN [2021-11-19 13:35:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-19 13:35:42,637 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-19 13:35:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure cas_vpd_match [2021-11-19 13:35:42,637 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_vpd_match [2021-11-19 13:35:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_83 [2021-11-19 13:35:42,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_83 [2021-11-19 13:35:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_81 [2021-11-19 13:35:42,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_81 [2021-11-19 13:35:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-19 13:35:42,638 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-19 13:35:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2021-11-19 13:35:42,639 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2021-11-19 13:35:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-19 13:35:42,639 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-19 13:35:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure page_count [2021-11-19 13:35:42,639 INFO L138 BoogieDeclarations]: Found implementation of procedure page_count [2021-11-19 13:35:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 13:35:42,639 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 13:35:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_77 [2021-11-19 13:35:42,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_77 [2021-11-19 13:35:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure cas_shutdown [2021-11-19 13:35:42,640 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_shutdown [2021-11-19 13:35:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure cas_begin_auto_negotiation [2021-11-19 13:35:42,640 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_begin_auto_negotiation [2021-11-19 13:35:42,641 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-19 13:35:42,641 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-19 13:35:42,641 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 13:35:42,641 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 13:35:42,641 INFO L130 BoogieDeclarations]: Found specification of procedure cas_write_txd [2021-11-19 13:35:42,641 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_write_txd [2021-11-19 13:35:42,641 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 13:35:42,642 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 13:35:42,642 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_ref [2021-11-19 13:35:42,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_ref [2021-11-19 13:35:42,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 13:35:42,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 13:35:42,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 13:35:42,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 13:35:42,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 13:35:42,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 13:35:42,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_82 [2021-11-19 13:35:42,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_82 [2021-11-19 13:35:42,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_84 [2021-11-19 13:35:42,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_84 [2021-11-19 13:35:42,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_79 [2021-11-19 13:35:42,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_79 [2021-11-19 13:35:42,644 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-19 13:35:42,644 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-19 13:35:42,644 INFO L130 BoogieDeclarations]: Found specification of procedure cas_init_hw [2021-11-19 13:35:42,644 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_init_hw [2021-11-19 13:35:42,644 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clean_rings [2021-11-19 13:35:42,645 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clean_rings [2021-11-19 13:35:42,645 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_free [2021-11-19 13:35:42,645 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_free [2021-11-19 13:35:42,645 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-19 13:35:42,645 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-19 13:35:42,645 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_write [2021-11-19 13:35:42,646 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_write [2021-11-19 13:35:42,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 13:35:42,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 13:35:42,646 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-19 13:35:42,646 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-19 13:35:42,646 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-19 13:35:42,646 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-19 13:35:42,647 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_recover [2021-11-19 13:35:42,647 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_recover [2021-11-19 13:35:42,647 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2021-11-19 13:35:42,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2021-11-19 13:35:42,647 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-19 13:35:42,647 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-19 13:35:42,648 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_stats [2021-11-19 13:35:42,648 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_stats [2021-11-19 13:35:42,648 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-19 13:35:42,648 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-19 13:35:42,648 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2021-11-19 13:35:42,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2021-11-19 13:35:42,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 13:35:42,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 13:35:42,649 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-11-19 13:35:42,649 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-11-19 13:35:42,649 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-11-19 13:35:42,649 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-11-19 13:35:42,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_107 [2021-11-19 13:35:42,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_107 [2021-11-19 13:35:43,871 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:35:43,881 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:35:47,555 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 13:41:20,790 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 13:41:20,934 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:41:20,973 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:41:20,974 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-19 13:41:20,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:41:20 BoogieIcfgContainer [2021-11-19 13:41:20,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:41:20,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:41:20,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:41:20,988 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:41:20,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:35:33" (1/3) ... [2021-11-19 13:41:20,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20dcc9ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:41:20, skipping insertion in model container [2021-11-19 13:41:20,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:41" (2/3) ... [2021-11-19 13:41:20,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20dcc9ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:41:20, skipping insertion in model container [2021-11-19 13:41:20,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:41:20" (3/3) ... [2021-11-19 13:41:20,991 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-19 13:41:20,996 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:41:20,997 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 13:41:21,086 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:41:21,096 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 13:41:21,097 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 13:41:21,196 INFO L276 IsEmpty]: Start isEmpty. Operand has 3753 states, 2493 states have (on average 1.2904131568391497) internal successors, (3217), 2563 states have internal predecessors, (3217), 1091 states have call successors, (1091), 168 states have call predecessors, (1091), 167 states have return successors, (1086), 1074 states have call predecessors, (1086), 1086 states have call successors, (1086) [2021-11-19 13:41:21,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-19 13:41:21,209 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:21,211 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:41:21,211 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:41:21,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:21,217 INFO L85 PathProgramCache]: Analyzing trace with hash 2127469638, now seen corresponding path program 1 times [2021-11-19 13:41:21,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:21,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44565874] [2021-11-19 13:41:21,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:21,238 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:21,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:21,244 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:21,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:41:24,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:24,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 2221 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:41:24,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:24,853 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2021-11-19 13:41:24,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:25,366 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-19 13:41:25,367 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:25,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44565874] [2021-11-19 13:41:25,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44565874] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:41:25,368 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:41:25,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:41:25,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911343663] [2021-11-19 13:41:25,372 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:41:25,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:41:25,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:25,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:41:25,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:41:25,429 INFO L87 Difference]: Start difference. First operand has 3753 states, 2493 states have (on average 1.2904131568391497) internal successors, (3217), 2563 states have internal predecessors, (3217), 1091 states have call successors, (1091), 168 states have call predecessors, (1091), 167 states have return successors, (1086), 1074 states have call predecessors, (1086), 1086 states have call successors, (1086) Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-19 13:41:27,829 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:41:49,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:49,358 INFO L93 Difference]: Finished difference Result 14737 states and 21872 transitions. [2021-11-19 13:41:49,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:41:49,363 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 156 [2021-11-19 13:41:49,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:49,476 INFO L225 Difference]: With dead ends: 14737 [2021-11-19 13:41:49,477 INFO L226 Difference]: Without dead ends: 10993 [2021-11-19 13:41:49,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:41:49,532 INFO L933 BasicCegarLoop]: 7480 mSDtfsCounter, 13608 mSDsluCounter, 8370 mSDsCounter, 0 mSdLazyCounter, 2171 mSolverCounterSat, 2101 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13608 SdHoareTripleChecker+Valid, 15850 SdHoareTripleChecker+Invalid, 4273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2101 IncrementalHoareTripleChecker+Valid, 2171 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:49,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13608 Valid, 15850 Invalid, 4273 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2101 Valid, 2171 Invalid, 1 Unknown, 0 Unchecked, 22.9s Time] [2021-11-19 13:41:49,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10993 states. [2021-11-19 13:41:50,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10993 to 10960. [2021-11-19 13:41:50,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10960 states, 7294 states have (on average 1.2816013161502604) internal successors, (9348), 7496 states have internal predecessors, (9348), 3167 states have call successors, (3167), 497 states have call predecessors, (3167), 496 states have return successors, (3164), 3128 states have call predecessors, (3164), 3164 states have call successors, (3164) [2021-11-19 13:41:50,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10960 states to 10960 states and 15679 transitions. [2021-11-19 13:41:50,476 INFO L78 Accepts]: Start accepts. Automaton has 10960 states and 15679 transitions. Word has length 156 [2021-11-19 13:41:50,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:50,480 INFO L470 AbstractCegarLoop]: Abstraction has 10960 states and 15679 transitions. [2021-11-19 13:41:50,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-19 13:41:50,482 INFO L276 IsEmpty]: Start isEmpty. Operand 10960 states and 15679 transitions. [2021-11-19 13:41:50,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-19 13:41:50,499 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:50,500 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:41:50,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:50,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:41:50,725 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:41:50,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:50,725 INFO L85 PathProgramCache]: Analyzing trace with hash 563100229, now seen corresponding path program 1 times [2021-11-19 13:41:50,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:50,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1381479980] [2021-11-19 13:41:50,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:50,729 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:50,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:50,731 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:50,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:41:53,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:53,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 2259 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:41:53,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:54,339 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2021-11-19 13:41:54,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:54,891 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-19 13:41:54,892 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:54,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1381479980] [2021-11-19 13:41:54,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1381479980] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:41:54,892 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:41:54,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:41:54,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539633278] [2021-11-19 13:41:54,893 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:41:54,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:41:54,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:54,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:41:54,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:41:54,898 INFO L87 Difference]: Start difference. First operand 10960 states and 15679 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-19 13:41:57,244 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:42:19,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:42:19,121 INFO L93 Difference]: Finished difference Result 43099 states and 61756 transitions. [2021-11-19 13:42:19,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:42:19,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 165 [2021-11-19 13:42:19,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:42:19,401 INFO L225 Difference]: With dead ends: 43099 [2021-11-19 13:42:19,401 INFO L226 Difference]: Without dead ends: 32168 [2021-11-19 13:42:19,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:42:19,489 INFO L933 BasicCegarLoop]: 7411 mSDtfsCounter, 13311 mSDsluCounter, 8349 mSDsCounter, 0 mSdLazyCounter, 2096 mSolverCounterSat, 2097 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13311 SdHoareTripleChecker+Valid, 15760 SdHoareTripleChecker+Invalid, 4194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2097 IncrementalHoareTripleChecker+Valid, 2096 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:42:19,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13311 Valid, 15760 Invalid, 4194 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2097 Valid, 2096 Invalid, 1 Unknown, 0 Unchecked, 22.9s Time] [2021-11-19 13:42:19,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32168 states. [2021-11-19 13:42:21,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32168 to 32080. [2021-11-19 13:42:21,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32080 states, 21390 states have (on average 1.280691912108462) internal successors, (27394), 21980 states have internal predecessors, (27394), 9207 states have call successors, (9207), 1487 states have call predecessors, (9207), 1480 states have return successors, (9390), 9062 states have call predecessors, (9390), 9204 states have call successors, (9390) [2021-11-19 13:42:21,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32080 states to 32080 states and 45991 transitions. [2021-11-19 13:42:21,992 INFO L78 Accepts]: Start accepts. Automaton has 32080 states and 45991 transitions. Word has length 165 [2021-11-19 13:42:21,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:42:21,995 INFO L470 AbstractCegarLoop]: Abstraction has 32080 states and 45991 transitions. [2021-11-19 13:42:21,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-19 13:42:21,995 INFO L276 IsEmpty]: Start isEmpty. Operand 32080 states and 45991 transitions. [2021-11-19 13:42:22,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-19 13:42:22,001 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:42:22,002 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:42:22,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:42:22,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:42:22,229 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:42:22,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:42:22,229 INFO L85 PathProgramCache]: Analyzing trace with hash 954034423, now seen corresponding path program 1 times [2021-11-19 13:42:22,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:42:22,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [379093863] [2021-11-19 13:42:22,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:42:22,233 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:42:22,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:42:22,235 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:42:22,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:42:24,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:42:25,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 2290 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:42:25,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:42:25,646 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2021-11-19 13:42:25,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:42:26,139 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-19 13:42:26,139 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:42:26,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [379093863] [2021-11-19 13:42:26,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [379093863] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:42:26,139 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:42:26,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:42:26,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920929852] [2021-11-19 13:42:26,140 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:42:26,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:42:26,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:42:26,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:42:26,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:42:26,142 INFO L87 Difference]: Start difference. First operand 32080 states and 45991 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-19 13:42:28,457 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:42:30,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:42:30,829 INFO L93 Difference]: Finished difference Result 91736 states and 131390 transitions. [2021-11-19 13:42:30,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:42:30,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 166 [2021-11-19 13:42:30,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:42:31,294 INFO L225 Difference]: With dead ends: 91736 [2021-11-19 13:42:31,295 INFO L226 Difference]: Without dead ends: 59685 [2021-11-19 13:42:31,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:42:31,622 INFO L933 BasicCegarLoop]: 6268 mSDtfsCounter, 4579 mSDsluCounter, 5206 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4579 SdHoareTripleChecker+Valid, 11474 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-19 13:42:31,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4579 Valid, 11474 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 78 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2021-11-19 13:42:31,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59685 states. [2021-11-19 13:42:34,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59685 to 59629. [2021-11-19 13:42:35,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59629 states, 39627 states have (on average 1.279380220556691) internal successors, (50698), 40724 states have internal predecessors, (50698), 17121 states have call successors, (17121), 2891 states have call predecessors, (17121), 2878 states have return successors, (17505), 16856 states have call predecessors, (17505), 17118 states have call successors, (17505) [2021-11-19 13:42:35,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59629 states to 59629 states and 85324 transitions. [2021-11-19 13:42:35,582 INFO L78 Accepts]: Start accepts. Automaton has 59629 states and 85324 transitions. Word has length 166 [2021-11-19 13:42:35,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:42:35,583 INFO L470 AbstractCegarLoop]: Abstraction has 59629 states and 85324 transitions. [2021-11-19 13:42:35,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-19 13:42:35,584 INFO L276 IsEmpty]: Start isEmpty. Operand 59629 states and 85324 transitions. [2021-11-19 13:42:35,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-19 13:42:35,593 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:42:35,593 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:42:35,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:42:35,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:42:35,799 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:42:35,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:42:35,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1165443321, now seen corresponding path program 1 times [2021-11-19 13:42:35,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:42:35,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920247219] [2021-11-19 13:42:35,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:42:35,803 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:42:35,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:42:35,804 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:42:35,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:42:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:42:38,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 2315 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:42:38,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:42:39,316 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2021-11-19 13:42:39,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:42:39,817 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-19 13:42:39,817 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:42:39,817 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920247219] [2021-11-19 13:42:39,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920247219] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:42:39,817 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:42:39,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:42:39,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442959518] [2021-11-19 13:42:39,818 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:42:39,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:42:39,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:42:39,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:42:39,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:42:39,819 INFO L87 Difference]: Start difference. First operand 59629 states and 85324 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-19 13:42:42,116 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:43:00,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:43:00,094 INFO L93 Difference]: Finished difference Result 155433 states and 220896 transitions. [2021-11-19 13:43:00,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:43:00,095 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 171 [2021-11-19 13:43:00,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:43:00,814 INFO L225 Difference]: With dead ends: 155433 [2021-11-19 13:43:00,814 INFO L226 Difference]: Without dead ends: 95833 [2021-11-19 13:43:01,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:43:01,051 INFO L933 BasicCegarLoop]: 8130 mSDtfsCounter, 8378 mSDsluCounter, 9459 mSDsCounter, 0 mSdLazyCounter, 2205 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8378 SdHoareTripleChecker+Valid, 17589 SdHoareTripleChecker+Invalid, 2247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2205 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:43:01,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8378 Valid, 17589 Invalid, 2247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2205 Invalid, 1 Unknown, 0 Unchecked, 16.9s Time] [2021-11-19 13:43:01,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95833 states. [2021-11-19 13:43:05,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95833 to 95759. [2021-11-19 13:43:05,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95759 states, 64449 states have (on average 1.2814163136743781) internal successors, (82586), 66150 states have internal predecessors, (82586), 26128 states have call successors, (26128), 5192 states have call predecessors, (26128), 5179 states have return successors, (26543), 25765 states have call predecessors, (26543), 26125 states have call successors, (26543) [2021-11-19 13:43:06,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95759 states to 95759 states and 135257 transitions. [2021-11-19 13:43:06,211 INFO L78 Accepts]: Start accepts. Automaton has 95759 states and 135257 transitions. Word has length 171 [2021-11-19 13:43:06,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:43:06,212 INFO L470 AbstractCegarLoop]: Abstraction has 95759 states and 135257 transitions. [2021-11-19 13:43:06,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-19 13:43:06,212 INFO L276 IsEmpty]: Start isEmpty. Operand 95759 states and 135257 transitions. [2021-11-19 13:43:06,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-19 13:43:06,217 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:43:06,217 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:43:06,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:43:06,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:43:06,433 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:43:06,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:43:06,433 INFO L85 PathProgramCache]: Analyzing trace with hash 345865182, now seen corresponding path program 1 times [2021-11-19 13:43:06,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:43:06,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566132441] [2021-11-19 13:43:06,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:43:06,438 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:43:06,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:43:06,439 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:43:06,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:43:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:43:09,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 2305 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:43:09,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:43:09,693 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2021-11-19 13:43:09,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:43:10,215 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-19 13:43:10,215 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:43:10,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566132441] [2021-11-19 13:43:10,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566132441] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:43:10,216 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:43:10,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:43:10,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081880687] [2021-11-19 13:43:10,216 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:43:10,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:43:10,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:43:10,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:43:10,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:43:10,218 INFO L87 Difference]: Start difference. First operand 95759 states and 135257 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 4 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2021-11-19 13:43:12,516 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:43:38,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:43:38,403 INFO L93 Difference]: Finished difference Result 345605 states and 488681 transitions. [2021-11-19 13:43:38,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:43:38,404 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 4 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 175 [2021-11-19 13:43:38,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:43:40,291 INFO L225 Difference]: With dead ends: 345605 [2021-11-19 13:43:40,292 INFO L226 Difference]: Without dead ends: 249875 [2021-11-19 13:43:40,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:43:40,681 INFO L933 BasicCegarLoop]: 7470 mSDtfsCounter, 13571 mSDsluCounter, 8305 mSDsCounter, 0 mSdLazyCounter, 2147 mSolverCounterSat, 2149 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13571 SdHoareTripleChecker+Valid, 15775 SdHoareTripleChecker+Invalid, 4297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2149 IncrementalHoareTripleChecker+Valid, 2147 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2021-11-19 13:43:40,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13571 Valid, 15775 Invalid, 4297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2149 Valid, 2147 Invalid, 1 Unknown, 0 Unchecked, 19.8s Time] [2021-11-19 13:43:41,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249875 states. [2021-11-19 13:43:52,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249875 to 249713. [2021-11-19 13:43:52,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249713 states, 167291 states have (on average 1.2768409537871135) internal successors, (213604), 171737 states have internal predecessors, (213604), 69114 states have call successors, (69114), 13382 states have call predecessors, (69114), 13305 states have return successors, (70369), 68013 states have call predecessors, (70369), 69111 states have call successors, (70369) [2021-11-19 13:43:55,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249713 states to 249713 states and 353087 transitions. [2021-11-19 13:43:55,293 INFO L78 Accepts]: Start accepts. Automaton has 249713 states and 353087 transitions. Word has length 175 [2021-11-19 13:43:55,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:43:55,294 INFO L470 AbstractCegarLoop]: Abstraction has 249713 states and 353087 transitions. [2021-11-19 13:43:55,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 4 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2021-11-19 13:43:55,295 INFO L276 IsEmpty]: Start isEmpty. Operand 249713 states and 353087 transitions. [2021-11-19 13:43:55,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-19 13:43:55,300 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:43:55,300 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 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] [2021-11-19 13:43:55,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 13:43:55,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:43:55,521 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:43:55,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:43:55,521 INFO L85 PathProgramCache]: Analyzing trace with hash -76135054, now seen corresponding path program 1 times [2021-11-19 13:43:55,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:43:55,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1893332888] [2021-11-19 13:43:55,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:43:55,525 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:43:55,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:43:55,528 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:43:55,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaf400b-b78c-4079-a30c-5827ab8161a9/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 13:43:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:43:58,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 2344 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:43:58,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:44:00,512 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2021-11-19 13:44:00,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:44:01,752 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2021-11-19 13:44:01,752 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:44:01,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1893332888] [2021-11-19 13:44:01,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1893332888] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:44:01,753 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:44:01,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 13:44:01,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575244184] [2021-11-19 13:44:01,754 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:44:01,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:44:01,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:44:01,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:44:01,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:44:01,756 INFO L87 Difference]: Start difference. First operand 249713 states and 353087 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42)