./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 232e8c8bdb70ee1ad9fec7edefe8ce3076fc3bc6f131163eee7a33dd2ac504a2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:05:42,767 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:05:42,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:05:42,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:05:42,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:05:42,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:05:42,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:05:42,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:05:42,815 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:05:42,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:05:42,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:05:42,819 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:05:42,819 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:05:42,821 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:05:42,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:05:42,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:05:42,826 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:05:42,827 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:05:42,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:05:42,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:05:42,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:05:42,836 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:05:42,837 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:05:42,838 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:05:42,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:05:42,843 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:05:42,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:05:42,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:05:42,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:05:42,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:05:42,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:05:42,848 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:05:42,849 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:05:42,850 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:05:42,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:05:42,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:05:42,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:05:42,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:05:42,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:05:42,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:05:42,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:05:42,857 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 23:05:42,882 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:05:42,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:05:42,884 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:05:42,884 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:05:42,884 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:05:42,884 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:05:42,884 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:05:42,885 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:05:42,885 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:05:42,885 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:05:42,885 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:05:42,886 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:05:42,886 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:05:42,886 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:05:42,886 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:05:42,886 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:05:42,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:05:42,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:05:42,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:05:42,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:05:42,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:05:42,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:05:42,889 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:05:42,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:05:42,889 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:05:42,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:05:42,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:05:42,890 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:05:42,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:05:42,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:05:42,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:05:42,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:05:42,891 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:05:42,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:05:42,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:05:42,892 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:05:42,892 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:05:42,892 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_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 232e8c8bdb70ee1ad9fec7edefe8ce3076fc3bc6f131163eee7a33dd2ac504a2 [2021-11-12 23:05:43,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:05:43,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:05:43,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:05:43,170 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:05:43,171 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:05:43,172 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i [2021-11-12 23:05:43,246 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/data/fb4c0e58f/1de1965a2ce14ec8943ded2a0e16d007/FLAG32df6cb35 [2021-11-12 23:05:44,216 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:05:44,216 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i [2021-11-12 23:05:44,283 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/data/fb4c0e58f/1de1965a2ce14ec8943ded2a0e16d007/FLAG32df6cb35 [2021-11-12 23:05:44,544 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/data/fb4c0e58f/1de1965a2ce14ec8943ded2a0e16d007 [2021-11-12 23:05:44,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:05:44,549 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:05:44,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:05:44,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:05:44,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:05:44,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:05:44" (1/1) ... [2021-11-12 23:05:44,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c9a66ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:44, skipping insertion in model container [2021-11-12 23:05:44,557 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:05:44" (1/1) ... [2021-11-12 23:05:44,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:05:44,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:05:47,404 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:47,758 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:47,760 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:47,814 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:47,818 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:47,818 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:47,830 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:47,831 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:47,926 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:47,927 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:47,934 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:47,941 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:47,991 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:47,995 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:47,999 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,009 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,199 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,256 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,257 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,378 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,386 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,402 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,421 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,429 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,439 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,449 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,456 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,462 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,470 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,476 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,482 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,488 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,509 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,521 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,540 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,548 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,560 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,560 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,567 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,568 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,575 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,576 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:48,989 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:49,015 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:49,030 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:49,031 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:49,051 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:49,063 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:49,395 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445023,445036] [2021-11-12 23:05:49,399 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445189,445202] [2021-11-12 23:05:49,406 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445353,445366] [2021-11-12 23:05:49,406 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445518,445531] [2021-11-12 23:05:49,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:05:49,522 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 23:05:49,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@272ec93f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:49, skipping insertion in model container [2021-11-12 23:05:49,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:05:49,523 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:05:49,526 INFO L158 Benchmark]: Toolchain (without parser) took 4975.67ms. Allocated memory was 111.1MB in the beginning and 155.2MB in the end (delta: 44.0MB). Free memory was 75.8MB in the beginning and 52.5MB in the end (delta: 23.3MB). Peak memory consumption was 84.4MB. Max. memory is 16.1GB. [2021-11-12 23:05:49,527 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 111.1MB. Free memory was 81.2MB in the beginning and 81.2MB in the end (delta: 29.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:05:49,528 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4972.78ms. Allocated memory was 111.1MB in the beginning and 155.2MB in the end (delta: 44.0MB). Free memory was 75.3MB in the beginning and 53.4MB in the end (delta: 21.9MB). Peak memory consumption was 82.3MB. Max. memory is 16.1GB. [2021-11-12 23:05:49,530 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 111.1MB. Free memory was 81.2MB in the beginning and 81.2MB in the end (delta: 29.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4972.78ms. Allocated memory was 111.1MB in the beginning and 155.2MB in the end (delta: 44.0MB). Free memory was 75.3MB in the beginning and 53.4MB in the end (delta: 21.9MB). Peak memory consumption was 82.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6901]: 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_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 232e8c8bdb70ee1ad9fec7edefe8ce3076fc3bc6f131163eee7a33dd2ac504a2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:05:51,801 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:05:51,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:05:51,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:05:51,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:05:51,857 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:05:51,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:05:51,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:05:51,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:05:51,875 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:05:51,876 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:05:51,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:05:51,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:05:51,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:05:51,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:05:51,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:05:51,886 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:05:51,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:05:51,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:05:51,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:05:51,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:05:51,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:05:51,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:05:51,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:05:51,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:05:51,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:05:51,931 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:05:51,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:05:51,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:05:51,934 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:05:51,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:05:51,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:05:51,937 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:05:51,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:05:51,939 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:05:51,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:05:51,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:05:51,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:05:51,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:05:51,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:05:51,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:05:51,944 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 23:05:51,986 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:05:51,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:05:51,988 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:05:51,988 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:05:51,988 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:05:51,988 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:05:51,989 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:05:51,989 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:05:51,989 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:05:51,989 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:05:51,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:05:51,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:05:51,992 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:05:51,992 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:05:51,992 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:05:51,992 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:05:51,992 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:05:51,993 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:05:51,993 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:05:51,993 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:05:51,993 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:05:51,993 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:05:51,994 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:05:51,994 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:05:51,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:05:51,994 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:05:51,994 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:05:51,995 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:05:51,995 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:05:51,995 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:05:51,995 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:05:51,995 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:05:51,996 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:05:51,996 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_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 232e8c8bdb70ee1ad9fec7edefe8ce3076fc3bc6f131163eee7a33dd2ac504a2 [2021-11-12 23:05:52,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:05:52,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:05:52,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:05:52,395 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:05:52,396 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:05:52,397 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i [2021-11-12 23:05:52,460 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/data/8bd4b0eba/e7bca3250b084e5a8ff87af137c0c714/FLAG122d007fa [2021-11-12 23:05:53,593 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:05:53,595 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i [2021-11-12 23:05:53,674 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/data/8bd4b0eba/e7bca3250b084e5a8ff87af137c0c714/FLAG122d007fa [2021-11-12 23:05:53,802 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/data/8bd4b0eba/e7bca3250b084e5a8ff87af137c0c714 [2021-11-12 23:05:53,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:05:53,805 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:05:53,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:05:53,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:05:53,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:05:53,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:05:53" (1/1) ... [2021-11-12 23:05:53,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d56a7fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:53, skipping insertion in model container [2021-11-12 23:05:53,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:05:53" (1/1) ... [2021-11-12 23:05:53,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:05:54,052 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:05:58,420 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445023,445036] [2021-11-12 23:05:58,423 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445189,445202] [2021-11-12 23:05:58,424 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445353,445366] [2021-11-12 23:05:58,424 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445518,445531] [2021-11-12 23:05:58,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:05:58,505 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:05:58,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:05:59,208 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445023,445036] [2021-11-12 23:05:59,208 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445189,445202] [2021-11-12 23:05:59,209 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445353,445366] [2021-11-12 23:05:59,209 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445518,445531] [2021-11-12 23:05:59,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:05:59,267 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:06:00,041 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445023,445036] [2021-11-12 23:06:00,049 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445189,445202] [2021-11-12 23:06:00,052 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445353,445366] [2021-11-12 23:06:00,052 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445518,445531] [2021-11-12 23:06:00,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:06:00,434 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:06:00,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:00 WrapperNode [2021-11-12 23:06:00,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:06:00,436 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:06:00,436 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:06:00,436 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:06:00,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:00" (1/1) ... [2021-11-12 23:06:00,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:00" (1/1) ... [2021-11-12 23:06:00,999 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:06:01,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:06:01,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:06:01,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:06:01,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:00" (1/1) ... [2021-11-12 23:06:01,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:00" (1/1) ... [2021-11-12 23:06:01,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:00" (1/1) ... [2021-11-12 23:06:01,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:00" (1/1) ... [2021-11-12 23:06:01,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:00" (1/1) ... [2021-11-12 23:06:01,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:00" (1/1) ... [2021-11-12 23:06:01,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:00" (1/1) ... [2021-11-12 23:06:01,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:06:01,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:06:01,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:06:01,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:06:01,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:00" (1/1) ... [2021-11-12 23:06:01,500 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:06:01,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:06:01,525 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:06:01,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:06:01,576 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-12 23:06:01,576 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-12 23:06:01,576 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_read [2021-11-12 23:06:01,576 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_read [2021-11-12 23:06:01,577 INFO L130 BoogieDeclarations]: Found specification of procedure cas_pcs_link_check [2021-11-12 23:06:01,577 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_pcs_link_check [2021-11-12 23:06:01,577 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-12 23:06:01,577 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-12 23:06:01,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 23:06:01,577 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 23:06:01,577 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-12 23:06:01,577 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-12 23:06:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-12 23:06:01,578 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-12 23:06:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 23:06:01,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 23:06:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mii_link_check [2021-11-12 23:06:01,578 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mii_link_check [2021-11-12 23:06:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure cas_calc_tabort [2021-11-12 23:06:01,578 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_calc_tabort [2021-11-12 23:06:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-12 23:06:01,579 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-12 23:06:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-11-12 23:06:01,579 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-11-12 23:06:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-12 23:06:01,579 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-12 23:06:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-12 23:06:01,580 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-12 23:06:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-12 23:06:01,580 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-12 23:06:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure cas_lock_tx [2021-11-12 23:06:01,580 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_lock_tx [2021-11-12 23:06:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-12 23:06:01,580 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-12 23:06:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-12 23:06:01,580 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-12 23:06:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure cas_disable_irq [2021-11-12 23:06:01,581 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_disable_irq [2021-11-12 23:06:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure cas_free_rxds [2021-11-12 23:06:01,581 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_free_rxds [2021-11-12 23:06:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_page [2021-11-12 23:06:01,581 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_page [2021-11-12 23:06:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure cas_open [2021-11-12 23:06:01,582 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_open [2021-11-12 23:06:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure cas_interrupt [2021-11-12 23:06:01,582 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_interrupt [2021-11-12 23:06:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_tiny_free [2021-11-12 23:06:01,582 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_tiny_free [2021-11-12 23:06:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-11-12 23:06:01,582 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-11-12 23:06:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_map [2021-11-12 23:06:01,582 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_map [2021-11-12 23:06:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_init [2021-11-12 23:06:01,583 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_init [2021-11-12 23:06:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-11-12 23:06:01,583 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-11-12 23:06:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2021-11-12 23:06:01,583 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2021-11-12 23:06:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-12 23:06:01,583 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-12 23:06:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 23:06:01,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 23:06:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure cas_enable_irq [2021-11-12 23:06:01,584 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_enable_irq [2021-11-12 23:06:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-12 23:06:01,584 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-12 23:06:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-12 23:06:01,584 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-12 23:06:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_dequeue [2021-11-12 23:06:01,585 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_dequeue [2021-11-12 23:06:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-11-12 23:06:01,585 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-11-12 23:06:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-12 23:06:01,585 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-12 23:06:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 23:06:01,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 23:06:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-12 23:06:01,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-12 23:06:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-12 23:06:01,586 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-12 23:06:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-12 23:06:01,586 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-12 23:06:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:06:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-11-12 23:06:01,586 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-11-12 23:06:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-12 23:06:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:06:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:06:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 23:06:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_multicast [2021-11-12 23:06:01,587 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_multicast [2021-11-12 23:06:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-12 23:06:01,587 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-12 23:06:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-12 23:06:01,588 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-12 23:06:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_free [2021-11-12 23:06:01,588 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_free [2021-11-12 23:06:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_timeout [2021-11-12 23:06:01,588 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_timeout [2021-11-12 23:06:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-12 23:06:01,588 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-12 23:06:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_pcs_link_mode [2021-11-12 23:06:01,588 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_pcs_link_mode [2021-11-12 23:06:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-12 23:06:01,589 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-12 23:06:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure cas_close [2021-11-12 23:06:01,589 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_close [2021-11-12 23:06:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_swap [2021-11-12 23:06:01,589 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_swap [2021-11-12 23:06:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-12 23:06:01,589 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-12 23:06:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure cas_netpoll [2021-11-12 23:06:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_netpoll [2021-11-12 23:06:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure cas_hard_reset [2021-11-12 23:06:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_hard_reset [2021-11-12 23:06:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-12 23:06:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-12 23:06:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 23:06:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 23:06:01,662 INFO L130 BoogieDeclarations]: Found specification of procedure cas_rxc_init [2021-11-12 23:06:01,663 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_rxc_init [2021-11-12 23:06:01,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-12 23:06:01,663 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-12 23:06:01,663 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clear_mac_err [2021-11-12 23:06:01,663 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clear_mac_err [2021-11-12 23:06:01,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-12 23:06:01,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-12 23:06:01,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-12 23:06:01,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-12 23:06:01,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-12 23:06:01,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-12 23:06:01,664 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-12 23:06:01,664 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-12 23:06:01,664 INFO L130 BoogieDeclarations]: Found specification of procedure cas_remove_one [2021-11-12 23:06:01,664 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_remove_one [2021-11-12 23:06:01,664 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-12 23:06:01,664 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-12 23:06:01,665 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-12 23:06:01,665 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-12 23:06:01,665 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-12 23:06:01,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-12 23:06:01,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:06:01,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-12 23:06:01,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-12 23:06:01,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-12 23:06:01,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-12 23:06:01,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-12 23:06:01,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-12 23:06:01,666 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2021-11-12 23:06:01,666 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2021-11-12 23:06:01,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 23:06:01,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 23:06:01,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pm_mutex_of_cas [2021-11-12 23:06:01,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pm_mutex_of_cas [2021-11-12 23:06:01,666 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-12 23:06:01,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-12 23:06:01,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:06:01,667 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-12 23:06:01,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 23:06:01,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 23:06:01,667 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 23:06:01,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 23:06:01,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 23:06:01,667 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_link_modes [2021-11-12 23:06:01,668 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_link_modes [2021-11-12 23:06:01,668 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_mii_link_mode [2021-11-12 23:06:01,668 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_mii_link_mode [2021-11-12 23:06:01,668 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2021-11-12 23:06:01,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2021-11-12 23:06:01,668 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-12 23:06:01,668 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-12 23:06:01,668 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-12 23:06:01,668 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-12 23:06:01,668 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2021-11-12 23:06:01,669 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2021-11-12 23:06:01,669 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-12 23:06:01,669 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-12 23:06:01,669 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-12 23:06:01,669 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-12 23:06:01,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-12 23:06:01,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-12 23:06:01,669 INFO L130 BoogieDeclarations]: Found specification of procedure csum_unfold [2021-11-12 23:06:01,669 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_unfold [2021-11-12 23:06:01,670 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-12 23:06:01,670 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-12 23:06:01,670 INFO L130 BoogieDeclarations]: Found specification of procedure cas_entropy_gather [2021-11-12 23:06:01,670 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_entropy_gather [2021-11-12 23:06:01,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 23:06:01,670 INFO L130 BoogieDeclarations]: Found specification of procedure cas_resume [2021-11-12 23:06:01,670 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_resume [2021-11-12 23:06:01,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:06:01,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:06:01,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:06:01,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 23:06:01,671 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_alloc [2021-11-12 23:06:01,671 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_alloc [2021-11-12 23:06:01,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:06:01,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 23:06:01,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 23:06:01,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 23:06:01,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 23:06:01,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 23:06:01,672 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-12 23:06:01,672 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-12 23:06:01,672 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mif_poll [2021-11-12 23:06:01,672 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mif_poll [2021-11-12 23:06:01,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-12 23:06:01,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-12 23:06:01,672 INFO L130 BoogieDeclarations]: Found specification of procedure cas_unlock_tx [2021-11-12 23:06:01,672 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_unlock_tx [2021-11-12 23:06:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice [2021-11-12 23:06:01,673 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice [2021-11-12 23:06:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-12 23:06:01,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-12 23:06:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2021-11-12 23:06:01,673 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2021-11-12 23:06:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-12 23:06:01,673 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-12 23:06:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 23:06:01,674 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 23:06:01,674 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-12 23:06:01,674 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-12 23:06:01,674 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-12 23:06:01,674 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-12 23:06:01,674 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_buf [2021-11-12 23:06:01,674 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_buf [2021-11-12 23:06:01,674 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mac_reset [2021-11-12 23:06:01,674 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mac_reset [2021-11-12 23:06:01,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:06:01,675 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-12 23:06:01,675 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-12 23:06:01,675 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_set_page [2021-11-12 23:06:01,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_set_page [2021-11-12 23:06:01,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:06:01,675 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_regs_len [2021-11-12 23:06:01,676 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_regs_len [2021-11-12 23:06:01,676 INFO L130 BoogieDeclarations]: Found specification of procedure cas_reset [2021-11-12 23:06:01,676 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_reset [2021-11-12 23:06:01,676 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-11-12 23:06:01,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-11-12 23:06:01,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 23:06:01,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 23:06:01,676 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_page [2021-11-12 23:06:01,677 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_page [2021-11-12 23:06:01,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 23:06:01,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:06:01,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:06:01,677 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-12 23:06:01,677 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-12 23:06:01,677 INFO L130 BoogieDeclarations]: Found specification of procedure cas_nway_reset [2021-11-12 23:06:01,677 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_nway_reset [2021-11-12 23:06:01,677 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-12 23:06:01,678 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-12 23:06:01,678 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-12 23:06:01,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-12 23:06:01,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pm_mutex_of_cas [2021-11-12 23:06:01,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pm_mutex_of_cas [2021-11-12 23:06:01,678 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-12 23:06:01,678 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-12 23:06:01,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 23:06:01,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 23:06:01,679 INFO L130 BoogieDeclarations]: Found specification of procedure cas_setup_multicast [2021-11-12 23:06:01,679 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_setup_multicast [2021-11-12 23:06:01,679 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_powerdown [2021-11-12 23:06:01,679 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_powerdown [2021-11-12 23:06:01,679 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_rxds_ringN [2021-11-12 23:06:01,679 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_rxds_ringN [2021-11-12 23:06:01,679 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-12 23:06:01,679 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-12 23:06:01,679 INFO L130 BoogieDeclarations]: Found specification of procedure cas_vpd_match [2021-11-12 23:06:01,680 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_vpd_match [2021-11-12 23:06:01,680 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-12 23:06:01,680 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-12 23:06:01,680 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2021-11-12 23:06:01,680 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2021-11-12 23:06:01,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-12 23:06:01,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-12 23:06:01,680 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-12 23:06:01,681 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-12 23:06:01,681 INFO L130 BoogieDeclarations]: Found specification of procedure page_count [2021-11-12 23:06:01,681 INFO L138 BoogieDeclarations]: Found implementation of procedure page_count [2021-11-12 23:06:01,681 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-12 23:06:01,681 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-12 23:06:01,681 INFO L130 BoogieDeclarations]: Found specification of procedure cas_shutdown [2021-11-12 23:06:01,681 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_shutdown [2021-11-12 23:06:01,681 INFO L130 BoogieDeclarations]: Found specification of procedure cas_begin_auto_negotiation [2021-11-12 23:06:01,681 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_begin_auto_negotiation [2021-11-12 23:06:01,682 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-12 23:06:01,682 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-12 23:06:01,682 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-12 23:06:01,682 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-12 23:06:01,682 INFO L130 BoogieDeclarations]: Found specification of procedure cas_write_txd [2021-11-12 23:06:01,682 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_write_txd [2021-11-12 23:06:01,682 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-12 23:06:01,682 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-12 23:06:01,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-12 23:06:01,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-12 23:06:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_ref [2021-11-12 23:06:01,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_ref [2021-11-12 23:06:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 23:06:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 23:06:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 23:06:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 23:06:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 23:06:01,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 23:06:01,684 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-12 23:06:01,684 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-12 23:06:01,684 INFO L130 BoogieDeclarations]: Found specification of procedure cas_init_hw [2021-11-12 23:06:01,684 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_init_hw [2021-11-12 23:06:01,684 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clean_rings [2021-11-12 23:06:01,684 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clean_rings [2021-11-12 23:06:01,684 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_free [2021-11-12 23:06:01,684 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_free [2021-11-12 23:06:01,685 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-12 23:06:01,685 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-12 23:06:01,685 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_write [2021-11-12 23:06:01,685 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_write [2021-11-12 23:06:01,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 23:06:01,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 23:06:01,685 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-12 23:06:01,685 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-12 23:06:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-12 23:06:01,686 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-12 23:06:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_recover [2021-11-12 23:06:01,686 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_recover [2021-11-12 23:06:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2021-11-12 23:06:01,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2021-11-12 23:06:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-12 23:06:01,686 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-12 23:06:01,687 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_stats [2021-11-12 23:06:01,687 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_stats [2021-11-12 23:06:01,687 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-12 23:06:01,687 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-12 23:06:01,687 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2021-11-12 23:06:01,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2021-11-12 23:06:01,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-12 23:06:01,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-12 23:06:01,688 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-11-12 23:06:01,688 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-11-12 23:06:01,688 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-11-12 23:06:01,688 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-11-12 23:06:07,679 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 23:15:42,749 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-12 23:15:43,156 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:15:43,156 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-12 23:15:43,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:15:43 BoogieIcfgContainer [2021-11-12 23:15:43,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:15:43,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:15:43,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:15:43,173 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:15:43,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:05:53" (1/3) ... [2021-11-12 23:15:43,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a84d2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:15:43, skipping insertion in model container [2021-11-12 23:15:43,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:06:00" (2/3) ... [2021-11-12 23:15:43,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a84d2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:15:43, skipping insertion in model container [2021-11-12 23:15:43,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:15:43" (3/3) ... [2021-11-12 23:15:43,177 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i [2021-11-12 23:15:43,184 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:15:43,184 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-12 23:15:43,265 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:15:43,274 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:15:43,274 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-12 23:15:43,392 INFO L276 IsEmpty]: Start isEmpty. Operand has 3683 states, 2482 states have (on average 1.2917002417405319) internal successors, (3206), 2552 states have internal predecessors, (3206), 1045 states have call successors, (1045), 155 states have call predecessors, (1045), 154 states have return successors, (1040), 1028 states have call predecessors, (1040), 1040 states have call successors, (1040) [2021-11-12 23:15:43,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-12 23:15:43,411 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:15:43,413 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] [2021-11-12 23:15:43,414 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:15:43,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:15:43,419 INFO L85 PathProgramCache]: Analyzing trace with hash 134777034, now seen corresponding path program 1 times [2021-11-12 23:15:43,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:15:43,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1334825618] [2021-11-12 23:15:43,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:15:43,450 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:15:43,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:15:43,460 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:15:43,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:15:51,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:15:52,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 2512 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:15:52,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:15:52,953 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2021-11-12 23:15:52,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:15:53,616 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-12 23:15:53,617 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:15:53,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1334825618] [2021-11-12 23:15:53,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1334825618] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:15:53,619 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:15:53,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:15:53,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157684660] [2021-11-12 23:15:53,624 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:15:53,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:15:53,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:15:53,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:15:53,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:15:53,695 INFO L87 Difference]: Start difference. First operand has 3683 states, 2482 states have (on average 1.2917002417405319) internal successors, (3206), 2552 states have internal predecessors, (3206), 1045 states have call successors, (1045), 155 states have call predecessors, (1045), 154 states have return successors, (1040), 1028 states have call predecessors, (1040), 1040 states have call successors, (1040) 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) [2021-11-12 23:15:56,543 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:16:17,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:16:17,701 INFO L93 Difference]: Finished difference Result 14472 states and 21112 transitions. [2021-11-12 23:16:17,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:16:17,704 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 [2021-11-12 23:16:17,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:16:17,856 INFO L225 Difference]: With dead ends: 14472 [2021-11-12 23:16:17,856 INFO L226 Difference]: Without dead ends: 10798 [2021-11-12 23:16:17,907 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 [2021-11-12 23:16:17,911 INFO L933 BasicCegarLoop]: 7286 mSDtfsCounter, 10326 mSDsluCounter, 13353 mSDsCounter, 0 mSdLazyCounter, 2082 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21178.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10326 SdHoareTripleChecker+Valid, 20639 SdHoareTripleChecker+Invalid, 2091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 130.54ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2082 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22894.33ms IncrementalHoareTripleChecker+Time [2021-11-12 23:16:17,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10326 Valid, 20639 Invalid, 2091 Unknown, 0 Unchecked, 130.54ms Time], IncrementalHoareTripleChecker [8 Valid, 2082 Invalid, 1 Unknown, 0 Unchecked, 22894.33ms Time] [2021-11-12 23:16:17,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10798 states. [2021-11-12 23:16:18,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10798 to 10780. [2021-11-12 23:16:18,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10780 states, 7261 states have (on average 1.2828811458476794) internal successors, (9315), 7463 states have internal predecessors, (9315), 3059 states have call successors, (3059), 458 states have call predecessors, (3059), 457 states have return successors, (3056), 3020 states have call predecessors, (3056), 3056 states have call successors, (3056) [2021-11-12 23:16:19,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10780 states to 10780 states and 15430 transitions. [2021-11-12 23:16:19,102 INFO L78 Accepts]: Start accepts. Automaton has 10780 states and 15430 transitions. Word has length 156 [2021-11-12 23:16:19,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:16:19,110 INFO L470 AbstractCegarLoop]: Abstraction has 10780 states and 15430 transitions. [2021-11-12 23:16:19,112 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) [2021-11-12 23:16:19,112 INFO L276 IsEmpty]: Start isEmpty. Operand 10780 states and 15430 transitions. [2021-11-12 23:16:19,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-12 23:16:19,132 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:16:19,133 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] [2021-11-12 23:16:19,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:16:19,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:16:19,348 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:16:19,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:16:19,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1827792813, now seen corresponding path program 1 times [2021-11-12 23:16:19,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:16:19,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1697095033] [2021-11-12 23:16:19,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:16:19,362 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:16:19,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:16:19,363 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:16:19,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:16:27,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:16:27,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 2583 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:16:27,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:16:28,687 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2021-11-12 23:16:28,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:16:29,469 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-12 23:16:29,470 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:16:29,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1697095033] [2021-11-12 23:16:29,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1697095033] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:16:29,470 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:16:29,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:16:29,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408902172] [2021-11-12 23:16:29,471 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:16:29,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:16:29,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:16:29,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:16:29,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:16:29,477 INFO L87 Difference]: Start difference. First operand 10780 states and 15430 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-12 23:16:32,072 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 [] [2021-11-12 23:16:56,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:16:56,213 INFO L93 Difference]: Finished difference Result 30283 states and 43169 transitions. [2021-11-12 23:16:56,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:16:56,214 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 171 [2021-11-12 23:16:56,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:16:56,392 INFO L225 Difference]: With dead ends: 30283 [2021-11-12 23:16:56,393 INFO L226 Difference]: Without dead ends: 19532 [2021-11-12 23:16:56,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:16:56,477 INFO L933 BasicCegarLoop]: 7451 mSDtfsCounter, 10139 mSDsluCounter, 7270 mSDsCounter, 0 mSdLazyCounter, 2148 mSolverCounterSat, 1140 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23308.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10139 SdHoareTripleChecker+Valid, 14721 SdHoareTripleChecker+Invalid, 3289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 84.57ms SdHoareTripleChecker+Time, 1140 IncrementalHoareTripleChecker+Valid, 2148 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25618.15ms IncrementalHoareTripleChecker+Time [2021-11-12 23:16:56,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10139 Valid, 14721 Invalid, 3289 Unknown, 0 Unchecked, 84.57ms Time], IncrementalHoareTripleChecker [1140 Valid, 2148 Invalid, 1 Unknown, 0 Unchecked, 25618.15ms Time] [2021-11-12 23:16:56,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19532 states. [2021-11-12 23:16:57,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19532 to 19498. [2021-11-12 23:16:57,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19498 states, 13281 states have (on average 1.287026579323846) internal successors, (17093), 13635 states have internal predecessors, (17093), 5303 states have call successors, (5303), 912 states have call predecessors, (5303), 911 states have return successors, (5300), 5238 states have call predecessors, (5300), 5300 states have call successors, (5300) [2021-11-12 23:16:57,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19498 states to 19498 states and 27696 transitions. [2021-11-12 23:16:57,858 INFO L78 Accepts]: Start accepts. Automaton has 19498 states and 27696 transitions. Word has length 171 [2021-11-12 23:16:57,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:16:57,860 INFO L470 AbstractCegarLoop]: Abstraction has 19498 states and 27696 transitions. [2021-11-12 23:16:57,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-12 23:16:57,860 INFO L276 IsEmpty]: Start isEmpty. Operand 19498 states and 27696 transitions. [2021-11-12 23:16:57,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-12 23:16:57,864 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:16:57,865 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] [2021-11-12 23:16:57,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-12 23:16:58,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:16:58,076 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:16:58,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:16:58,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1016983184, now seen corresponding path program 1 times [2021-11-12 23:16:58,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:16:58,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1635391159] [2021-11-12 23:16:58,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:16:58,080 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:16:58,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:16:58,081 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:16:58,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:17:04,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:17:04,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 2577 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:17:04,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:17:05,302 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2021-11-12 23:17:05,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:17:05,887 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-12 23:17:05,887 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:17:05,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1635391159] [2021-11-12 23:17:05,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1635391159] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:17:05,887 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:17:05,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 23:17:05,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048615435] [2021-11-12 23:17:05,888 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:17:05,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:17:05,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:17:05,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:17:05,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:17:05,890 INFO L87 Difference]: Start difference. First operand 19498 states and 27696 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2021-11-12 23:17:08,287 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:17:09,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:17:09,669 INFO L93 Difference]: Finished difference Result 51864 states and 73634 transitions. [2021-11-12 23:17:09,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:17:09,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 174 [2021-11-12 23:17:09,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:17:09,887 INFO L225 Difference]: With dead ends: 51864 [2021-11-12 23:17:09,888 INFO L226 Difference]: Without dead ends: 32395 [2021-11-12 23:17:09,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:17:09,978 INFO L933 BasicCegarLoop]: 6121 mSDtfsCounter, 4476 mSDsluCounter, 5101 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2818.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4476 SdHoareTripleChecker+Valid, 11222 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.47ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2952.55ms IncrementalHoareTripleChecker+Time [2021-11-12 23:17:09,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4476 Valid, 11222 Invalid, 86 Unknown, 0 Unchecked, 19.47ms Time], IncrementalHoareTripleChecker [7 Valid, 78 Invalid, 1 Unknown, 0 Unchecked, 2952.55ms Time] [2021-11-12 23:17:10,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32395 states. [2021-11-12 23:17:12,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32395 to 32368. [2021-11-12 23:17:12,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32368 states, 22009 states have (on average 1.288291153618974) internal successors, (28354), 22598 states have internal predecessors, (28354), 8780 states have call successors, (8780), 1577 states have call predecessors, (8780), 1576 states have return successors, (8783), 8681 states have call predecessors, (8783), 8777 states have call successors, (8783) [2021-11-12 23:17:12,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32368 states to 32368 states and 45917 transitions. [2021-11-12 23:17:12,349 INFO L78 Accepts]: Start accepts. Automaton has 32368 states and 45917 transitions. Word has length 174 [2021-11-12 23:17:12,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:17:12,350 INFO L470 AbstractCegarLoop]: Abstraction has 32368 states and 45917 transitions. [2021-11-12 23:17:12,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2021-11-12 23:17:12,351 INFO L276 IsEmpty]: Start isEmpty. Operand 32368 states and 45917 transitions. [2021-11-12 23:17:12,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-12 23:17:12,357 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:17:12,358 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] [2021-11-12 23:17:12,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:17:12,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:17:12,559 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:17:12,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:17:12,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1608608289, now seen corresponding path program 1 times [2021-11-12 23:17:12,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:17:12,564 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1711562351] [2021-11-12 23:17:12,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:17:12,564 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:17:12,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:17:12,567 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:17:12,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:17:19,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:17:19,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 2635 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:17:19,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:17:21,892 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2021-11-12 23:17:21,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:17:23,243 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2021-11-12 23:17:23,243 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:17:23,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1711562351] [2021-11-12 23:17:23,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1711562351] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:17:23,243 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:17:23,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-12 23:17:23,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183112379] [2021-11-12 23:17:23,244 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:17:23,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:17:23,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:17:23,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:17:23,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:17:23,245 INFO L87 Difference]: Start difference. First operand 32368 states and 45917 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) [2021-11-12 23:17:25,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:17:25,454 INFO L93 Difference]: Finished difference Result 32374 states and 45922 transitions. [2021-11-12 23:17:25,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:17:25,455 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 210 [2021-11-12 23:17:25,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:17:25,808 INFO L225 Difference]: With dead ends: 32374 [2021-11-12 23:17:25,808 INFO L226 Difference]: Without dead ends: 32372 [2021-11-12 23:17:25,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:17:25,824 INFO L933 BasicCegarLoop]: 5216 mSDtfsCounter, 5132 mSDsluCounter, 15641 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 719.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5135 SdHoareTripleChecker+Valid, 20857 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 48.57ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 727.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:17:25,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5135 Valid, 20857 Invalid, 19 Unknown, 0 Unchecked, 48.57ms Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 727.00ms Time] [2021-11-12 23:17:25,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32372 states. [2021-11-12 23:17:27,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32372 to 32372. [2021-11-12 23:17:27,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32372 states, 22012 states have (on average 1.288251862620389) internal successors, (28357), 22601 states have internal predecessors, (28357), 8780 states have call successors, (8780), 1578 states have call predecessors, (8780), 1577 states have return successors, (8783), 8681 states have call predecessors, (8783), 8777 states have call successors, (8783) [2021-11-12 23:17:27,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32372 states to 32372 states and 45920 transitions. [2021-11-12 23:17:27,705 INFO L78 Accepts]: Start accepts. Automaton has 32372 states and 45920 transitions. Word has length 210 [2021-11-12 23:17:27,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:17:27,706 INFO L470 AbstractCegarLoop]: Abstraction has 32372 states and 45920 transitions. [2021-11-12 23:17:27,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-11-12 23:17:27,707 INFO L276 IsEmpty]: Start isEmpty. Operand 32372 states and 45920 transitions. [2021-11-12 23:17:27,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-12 23:17:27,714 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:17:27,714 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:17:27,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:17:27,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:17:27,936 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:17:27,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:17:27,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1256601667, now seen corresponding path program 1 times [2021-11-12 23:17:27,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:17:27,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1808187222] [2021-11-12 23:17:27,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:17:27,942 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:17:27,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:17:27,944 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:17:27,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:17:34,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:17:34,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 2642 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:17:34,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:17:37,059 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2021-11-12 23:17:37,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:17:38,356 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2021-11-12 23:17:38,356 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:17:38,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1808187222] [2021-11-12 23:17:38,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1808187222] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:17:38,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:17:38,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-11-12 23:17:38,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867795814] [2021-11-12 23:17:38,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:17:38,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:17:38,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:17:38,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:17:38,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:17:38,359 INFO L87 Difference]: Start difference. First operand 32372 states and 45920 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-12 23:17:40,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:17:40,197 INFO L93 Difference]: Finished difference Result 32378 states and 45925 transitions. [2021-11-12 23:17:40,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:17:40,198 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 215 [2021-11-12 23:17:40,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:17:40,468 INFO L225 Difference]: With dead ends: 32378 [2021-11-12 23:17:40,468 INFO L226 Difference]: Without dead ends: 32376 [2021-11-12 23:17:40,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 423 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:17:40,483 INFO L933 BasicCegarLoop]: 5219 mSDtfsCounter, 5160 mSDsluCounter, 10427 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 445.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5162 SdHoareTripleChecker+Valid, 15646 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.33ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 535.44ms IncrementalHoareTripleChecker+Time [2021-11-12 23:17:40,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5162 Valid, 15646 Invalid, 13 Unknown, 0 Unchecked, 32.33ms Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 535.44ms Time] [2021-11-12 23:17:40,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32376 states. [2021-11-12 23:17:42,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32376 to 32376. [2021-11-12 23:17:42,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32376 states, 22015 states have (on average 1.2882125823302293) internal successors, (28360), 22604 states have internal predecessors, (28360), 8780 states have call successors, (8780), 1579 states have call predecessors, (8780), 1578 states have return successors, (8783), 8681 states have call predecessors, (8783), 8777 states have call successors, (8783) [2021-11-12 23:17:42,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32376 states to 32376 states and 45923 transitions. [2021-11-12 23:17:42,557 INFO L78 Accepts]: Start accepts. Automaton has 32376 states and 45923 transitions. Word has length 215 [2021-11-12 23:17:42,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:17:42,558 INFO L470 AbstractCegarLoop]: Abstraction has 32376 states and 45923 transitions. [2021-11-12 23:17:42,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-12 23:17:42,558 INFO L276 IsEmpty]: Start isEmpty. Operand 32376 states and 45923 transitions. [2021-11-12 23:17:42,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-11-12 23:17:42,566 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:17:42,566 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:17:42,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-12 23:17:42,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:17:42,788 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:17:42,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:17:42,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1658062625, now seen corresponding path program 1 times [2021-11-12 23:17:42,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:17:42,795 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732350225] [2021-11-12 23:17:42,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:17:42,796 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:17:42,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:17:42,798 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:17:42,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:17:49,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:17:49,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 2649 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:17:49,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:17:52,399 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 790 trivial. 0 not checked. [2021-11-12 23:17:52,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:17:53,544 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 790 trivial. 0 not checked. [2021-11-12 23:17:53,544 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:17:53,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732350225] [2021-11-12 23:17:53,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1732350225] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:17:53,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:17:53,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-11-12 23:17:53,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301176242] [2021-11-12 23:17:53,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:17:53,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:17:53,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:17:53,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:17:53,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:17:53,547 INFO L87 Difference]: Start difference. First operand 32376 states and 45923 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-12 23:17:55,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:17:55,805 INFO L93 Difference]: Finished difference Result 32382 states and 45928 transitions. [2021-11-12 23:17:55,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:17:55,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 220 [2021-11-12 23:17:55,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:17:55,994 INFO L225 Difference]: With dead ends: 32382 [2021-11-12 23:17:55,994 INFO L226 Difference]: Without dead ends: 32378 [2021-11-12 23:17:56,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:17:56,011 INFO L933 BasicCegarLoop]: 5219 mSDtfsCounter, 5160 mSDsluCounter, 10427 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 528.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5161 SdHoareTripleChecker+Valid, 15646 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.28ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 650.56ms IncrementalHoareTripleChecker+Time [2021-11-12 23:17:56,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5161 Valid, 15646 Invalid, 13 Unknown, 0 Unchecked, 37.28ms Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 650.56ms Time] [2021-11-12 23:17:56,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32378 states. [2021-11-12 23:17:57,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32378 to 32378. [2021-11-12 23:17:57,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32378 states, 22017 states have (on average 1.2881409819684788) internal successors, (28361), 22605 states have internal predecessors, (28361), 8780 states have call successors, (8780), 1580 states have call predecessors, (8780), 1578 states have return successors, (8783), 8681 states have call predecessors, (8783), 8777 states have call successors, (8783) [2021-11-12 23:17:58,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32378 states to 32378 states and 45924 transitions. [2021-11-12 23:17:58,009 INFO L78 Accepts]: Start accepts. Automaton has 32378 states and 45924 transitions. Word has length 220 [2021-11-12 23:17:58,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:17:58,010 INFO L470 AbstractCegarLoop]: Abstraction has 32378 states and 45924 transitions. [2021-11-12 23:17:58,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-12 23:17:58,010 INFO L276 IsEmpty]: Start isEmpty. Operand 32378 states and 45924 transitions. [2021-11-12 23:17:58,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-11-12 23:17:58,019 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:17:58,019 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:17:58,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-12 23:17:58,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:17:58,236 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:17:58,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:17:58,236 INFO L85 PathProgramCache]: Analyzing trace with hash 944237251, now seen corresponding path program 1 times [2021-11-12 23:17:58,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:17:58,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462195969] [2021-11-12 23:17:58,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:17:58,241 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:17:58,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:17:58,242 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:17:58,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 23:18:04,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:18:05,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 2656 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:18:05,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:18:07,529 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2021-11-12 23:18:07,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:18:08,688 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2021-11-12 23:18:08,688 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:18:08,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462195969] [2021-11-12 23:18:08,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1462195969] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:18:08,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:18:08,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-11-12 23:18:08,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147399720] [2021-11-12 23:18:08,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:18:08,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:18:08,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:18:08,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:18:08,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:18:08,691 INFO L87 Difference]: Start difference. First operand 32378 states and 45924 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-12 23:18:11,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:18:11,108 INFO L93 Difference]: Finished difference Result 40242 states and 56468 transitions. [2021-11-12 23:18:11,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:18:11,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 225 [2021-11-12 23:18:11,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:18:11,293 INFO L225 Difference]: With dead ends: 40242 [2021-11-12 23:18:11,293 INFO L226 Difference]: Without dead ends: 40177 [2021-11-12 23:18:11,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:18:11,312 INFO L933 BasicCegarLoop]: 6346 mSDtfsCounter, 4759 mSDsluCounter, 14827 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 442.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4759 SdHoareTripleChecker+Valid, 21173 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 39.57ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 539.29ms IncrementalHoareTripleChecker+Time [2021-11-12 23:18:11,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4759 Valid, 21173 Invalid, 10 Unknown, 0 Unchecked, 39.57ms Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 539.29ms Time] [2021-11-12 23:18:11,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40177 states. [2021-11-12 23:18:13,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40177 to 36582. [2021-11-12 23:18:13,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36582 states, 24620 states have (on average 1.2739642567018683) internal successors, (31365), 25239 states have internal predecessors, (31365), 9990 states have call successors, (9990), 1970 states have call predecessors, (9990), 1970 states have return successors, (9996), 9906 states have call predecessors, (9996), 9990 states have call successors, (9996) [2021-11-12 23:18:13,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36582 states to 36582 states and 51351 transitions. [2021-11-12 23:18:13,495 INFO L78 Accepts]: Start accepts. Automaton has 36582 states and 51351 transitions. Word has length 225 [2021-11-12 23:18:13,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:18:13,495 INFO L470 AbstractCegarLoop]: Abstraction has 36582 states and 51351 transitions. [2021-11-12 23:18:13,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-12 23:18:13,496 INFO L276 IsEmpty]: Start isEmpty. Operand 36582 states and 51351 transitions. [2021-11-12 23:18:13,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-11-12 23:18:13,504 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:18:13,504 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:18:13,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-12 23:18:13,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:18:13,720 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:18:13,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:18:13,720 INFO L85 PathProgramCache]: Analyzing trace with hash 2095173438, now seen corresponding path program 1 times [2021-11-12 23:18:13,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:18:13,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063516056] [2021-11-12 23:18:13,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:18:13,725 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:18:13,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:18:13,726 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:18:13,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 23:18:20,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:18:20,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 2749 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:18:20,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:18:21,445 INFO L134 CoverageAnalysis]: Checked inductivity of 799 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-12 23:18:21,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:18:22,156 INFO L134 CoverageAnalysis]: Checked inductivity of 799 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2021-11-12 23:18:22,157 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:18:22,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063516056] [2021-11-12 23:18:22,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2063516056] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:18:22,157 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:18:22,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:18:22,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115128145] [2021-11-12 23:18:22,157 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:18:22,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:18:22,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:18:22,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:18:22,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:18:22,159 INFO L87 Difference]: Start difference. First operand 36582 states and 51351 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 4 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2021-11-12 23:18:24,738 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 [] [2021-11-12 23:18:44,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:18:44,349 INFO L93 Difference]: Finished difference Result 98075 states and 137516 transitions. [2021-11-12 23:18:44,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:18:44,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 4 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 242 [2021-11-12 23:18:44,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:18:44,657 INFO L225 Difference]: With dead ends: 98075 [2021-11-12 23:18:44,657 INFO L226 Difference]: Without dead ends: 62902 [2021-11-12 23:18:44,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:18:44,775 INFO L933 BasicCegarLoop]: 8936 mSDtfsCounter, 8152 mSDsluCounter, 6914 mSDsCounter, 0 mSdLazyCounter, 2148 mSolverCounterSat, 587 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17574.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8152 SdHoareTripleChecker+Valid, 15850 SdHoareTripleChecker+Invalid, 2736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 51.27ms SdHoareTripleChecker+Time, 587 IncrementalHoareTripleChecker+Valid, 2148 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19117.55ms IncrementalHoareTripleChecker+Time [2021-11-12 23:18:44,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8152 Valid, 15850 Invalid, 2736 Unknown, 0 Unchecked, 51.27ms Time], IncrementalHoareTripleChecker [587 Valid, 2148 Invalid, 1 Unknown, 0 Unchecked, 19117.55ms Time] [2021-11-12 23:18:44,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62902 states. [2021-11-12 23:18:48,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62902 to 62890. [2021-11-12 23:18:48,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62890 states, 42732 states have (on average 1.2814986427033606) internal successors, (54761), 43795 states have internal predecessors, (54761), 16646 states have call successors, (16646), 3510 states have call predecessors, (16646), 3510 states have return successors, (16652), 16504 states have call predecessors, (16652), 16646 states have call successors, (16652) [2021-11-12 23:18:48,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62890 states to 62890 states and 88059 transitions. [2021-11-12 23:18:48,282 INFO L78 Accepts]: Start accepts. Automaton has 62890 states and 88059 transitions. Word has length 242 [2021-11-12 23:18:48,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:18:48,283 INFO L470 AbstractCegarLoop]: Abstraction has 62890 states and 88059 transitions. [2021-11-12 23:18:48,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 4 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2021-11-12 23:18:48,283 INFO L276 IsEmpty]: Start isEmpty. Operand 62890 states and 88059 transitions. [2021-11-12 23:18:48,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-11-12 23:18:48,311 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:18:48,312 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 12, 12, 12, 12, 12, 12, 9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:18:48,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-12 23:18:48,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:18:48,536 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:18:48,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:18:48,536 INFO L85 PathProgramCache]: Analyzing trace with hash 693741089, now seen corresponding path program 1 times [2021-11-12 23:18:48,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:18:48,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799716759] [2021-11-12 23:18:48,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:18:48,541 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:18:48,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:18:48,542 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:18:48,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0910146e-b9cf-4524-a11e-958c1baee5a2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 23:18:55,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:18:55,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 2884 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:18:55,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:18:56,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1031 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2021-11-12 23:18:56,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:18:57,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1031 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1013 trivial. 0 not checked. [2021-11-12 23:18:57,172 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:18:57,172 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1799716759] [2021-11-12 23:18:57,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1799716759] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:18:57,172 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:18:57,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:18:57,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820886039] [2021-11-12 23:18:57,173 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:18:57,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:18:57,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:18:57,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:18:57,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:18:57,174 INFO L87 Difference]: Start difference. First operand 62890 states and 88059 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 4 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35)