./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-marvell-sky2.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_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/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_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-marvell-sky2.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/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_4ed1a852-24a2-49cf-914b-b2d579091dad/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 444a46b967cbf28ff66594f7c2b86075c66a3ec06686446169e50e8f0716b901 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:39:25,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:39:25,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:39:25,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:39:25,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:39:25,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:39:25,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:39:25,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:39:25,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:39:25,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:39:25,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:39:25,463 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:39:25,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:39:25,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:39:25,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:39:25,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:39:25,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:39:25,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:39:25,483 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:39:25,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:39:25,493 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:39:25,494 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:39:25,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:39:25,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:39:25,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:39:25,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:39:25,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:39:25,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:39:25,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:39:25,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:39:25,517 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:39:25,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:39:25,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:39:25,521 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:39:25,522 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:39:25,523 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:39:25,523 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:39:25,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:39:25,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:39:25,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:39:25,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:39:25,526 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 23:39:25,571 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:39:25,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:39:25,573 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:39:25,573 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:39:25,573 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:39:25,574 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:39:25,574 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:39:25,574 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:39:25,580 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:39:25,581 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:39:25,581 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:39:25,582 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:39:25,582 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:39:25,582 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:39:25,582 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:39:25,583 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:39:25,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:39:25,584 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:39:25,584 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:39:25,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:39:25,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:39:25,585 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:39:25,585 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:39:25,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:39:25,585 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:39:25,585 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:39:25,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:39:25,586 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:39:25,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:39:25,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:39:25,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:39:25,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:39:25,587 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:39:25,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:39:25,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:39:25,588 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:39:25,588 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:39:25,588 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_4ed1a852-24a2-49cf-914b-b2d579091dad/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 444a46b967cbf28ff66594f7c2b86075c66a3ec06686446169e50e8f0716b901 [2021-11-12 23:39:25,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:39:25,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:39:25,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:39:25,930 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:39:25,931 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:39:25,932 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-marvell-sky2.cil.i [2021-11-12 23:39:25,996 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/data/34797631f/8b2adf2436c64a55baadc2e65b6b1480/FLAG6b25e664f [2021-11-12 23:39:27,135 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:39:27,137 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-marvell-sky2.cil.i [2021-11-12 23:39:27,212 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/data/34797631f/8b2adf2436c64a55baadc2e65b6b1480/FLAG6b25e664f [2021-11-12 23:39:27,401 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/data/34797631f/8b2adf2436c64a55baadc2e65b6b1480 [2021-11-12 23:39:27,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:39:27,405 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:39:27,406 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:39:27,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:39:27,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:39:27,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:39:27" (1/1) ... [2021-11-12 23:39:27,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@370b6daa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:39:27, skipping insertion in model container [2021-11-12 23:39:27,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:39:27" (1/1) ... [2021-11-12 23:39:27,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:39:27,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:39:31,596 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 23:39:31,696 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 23:39:31,832 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 23:39:31,833 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 23:39:32,144 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 23:39:32,154 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 23:39:33,554 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_4ed1a852-24a2-49cf-914b-b2d579091dad/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-marvell-sky2.cil.i[558285,558298] [2021-11-12 23:39:33,561 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_4ed1a852-24a2-49cf-914b-b2d579091dad/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-marvell-sky2.cil.i[558432,558445] [2021-11-12 23:39:33,561 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_4ed1a852-24a2-49cf-914b-b2d579091dad/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-marvell-sky2.cil.i[558571,558584] [2021-11-12 23:39:33,562 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_4ed1a852-24a2-49cf-914b-b2d579091dad/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-marvell-sky2.cil.i[558729,558742] [2021-11-12 23:39:33,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:39:33,705 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 23:39:33,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@183701c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:39:33, skipping insertion in model container [2021-11-12 23:39:33,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:39:33,706 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:39:33,708 INFO L158 Benchmark]: Toolchain (without parser) took 6302.07ms. Allocated memory was 111.1MB in the beginning and 163.6MB in the end (delta: 52.4MB). Free memory was 72.7MB in the beginning and 62.3MB in the end (delta: 10.4MB). Peak memory consumption was 80.3MB. Max. memory is 16.1GB. [2021-11-12 23:39:33,709 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 111.1MB. Free memory is still 88.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:39:33,711 INFO L158 Benchmark]: CACSL2BoogieTranslator took 6299.69ms. Allocated memory was 111.1MB in the beginning and 163.6MB in the end (delta: 52.4MB). Free memory was 72.7MB in the beginning and 62.3MB in the end (delta: 10.4MB). Peak memory consumption was 80.3MB. Max. memory is 16.1GB. [2021-11-12 23:39:33,713 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 111.1MB. Free memory is still 88.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 6299.69ms. Allocated memory was 111.1MB in the beginning and 163.6MB in the end (delta: 52.4MB). Free memory was 72.7MB in the beginning and 62.3MB in the end (delta: 10.4MB). Peak memory consumption was 80.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7109]: 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_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/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_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-marvell-sky2.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/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_4ed1a852-24a2-49cf-914b-b2d579091dad/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 444a46b967cbf28ff66594f7c2b86075c66a3ec06686446169e50e8f0716b901 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:39:36,039 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:39:36,041 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:39:36,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:39:36,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:39:36,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:39:36,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:39:36,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:39:36,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:39:36,120 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:39:36,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:39:36,123 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:39:36,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:39:36,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:39:36,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:39:36,132 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:39:36,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:39:36,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:39:36,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:39:36,143 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:39:36,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:39:36,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:39:36,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:39:36,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:39:36,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:39:36,163 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:39:36,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:39:36,165 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:39:36,166 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:39:36,167 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:39:36,168 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:39:36,169 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:39:36,171 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:39:36,172 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:39:36,182 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:39:36,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:39:36,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:39:36,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:39:36,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:39:36,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:39:36,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:39:36,186 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 23:39:36,215 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:39:36,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:39:36,216 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:39:36,217 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:39:36,217 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:39:36,217 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:39:36,217 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:39:36,217 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:39:36,218 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:39:36,218 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:39:36,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:39:36,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:39:36,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:39:36,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:39:36,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:39:36,220 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:39:36,220 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:39:36,220 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:39:36,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:39:36,220 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:39:36,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:39:36,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:39:36,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:39:36,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:39:36,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:39:36,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:39:36,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:39:36,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:39:36,222 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:39:36,222 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:39:36,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:39:36,223 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:39:36,223 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:39:36,223 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_4ed1a852-24a2-49cf-914b-b2d579091dad/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 444a46b967cbf28ff66594f7c2b86075c66a3ec06686446169e50e8f0716b901 [2021-11-12 23:39:36,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:39:36,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:39:36,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:39:36,629 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:39:36,629 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:39:36,631 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-marvell-sky2.cil.i [2021-11-12 23:39:36,708 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/data/56a4b6d4a/edc3de191a854933bfb0a9510273164e/FLAG89f625b07 [2021-11-12 23:39:38,028 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:39:38,029 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-marvell-sky2.cil.i [2021-11-12 23:39:38,109 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/data/56a4b6d4a/edc3de191a854933bfb0a9510273164e/FLAG89f625b07 [2021-11-12 23:39:38,130 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/data/56a4b6d4a/edc3de191a854933bfb0a9510273164e [2021-11-12 23:39:38,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:39:38,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:39:38,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:39:38,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:39:38,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:39:38,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:39:38" (1/1) ... [2021-11-12 23:39:38,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@743c0a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:39:38, skipping insertion in model container [2021-11-12 23:39:38,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:39:38" (1/1) ... [2021-11-12 23:39:38,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:39:38,454 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:39:44,719 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_4ed1a852-24a2-49cf-914b-b2d579091dad/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-marvell-sky2.cil.i[558285,558298] [2021-11-12 23:39:44,722 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_4ed1a852-24a2-49cf-914b-b2d579091dad/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-marvell-sky2.cil.i[558432,558445] [2021-11-12 23:39:44,723 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_4ed1a852-24a2-49cf-914b-b2d579091dad/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-marvell-sky2.cil.i[558571,558584] [2021-11-12 23:39:44,723 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_4ed1a852-24a2-49cf-914b-b2d579091dad/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-marvell-sky2.cil.i[558729,558742] [2021-11-12 23:39:44,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:39:44,863 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:39:45,064 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:39:45,635 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_4ed1a852-24a2-49cf-914b-b2d579091dad/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-marvell-sky2.cil.i[558285,558298] [2021-11-12 23:39:45,636 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_4ed1a852-24a2-49cf-914b-b2d579091dad/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-marvell-sky2.cil.i[558432,558445] [2021-11-12 23:39:45,636 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_4ed1a852-24a2-49cf-914b-b2d579091dad/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-marvell-sky2.cil.i[558571,558584] [2021-11-12 23:39:45,637 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_4ed1a852-24a2-49cf-914b-b2d579091dad/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-marvell-sky2.cil.i[558729,558742] [2021-11-12 23:39:45,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:39:45,730 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:39:46,676 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_4ed1a852-24a2-49cf-914b-b2d579091dad/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-marvell-sky2.cil.i[558285,558298] [2021-11-12 23:39:46,677 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_4ed1a852-24a2-49cf-914b-b2d579091dad/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-marvell-sky2.cil.i[558432,558445] [2021-11-12 23:39:46,677 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_4ed1a852-24a2-49cf-914b-b2d579091dad/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-marvell-sky2.cil.i[558571,558584] [2021-11-12 23:39:46,678 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_4ed1a852-24a2-49cf-914b-b2d579091dad/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-marvell-sky2.cil.i[558729,558742] [2021-11-12 23:39:46,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:39:47,186 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:39:47,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:39:47 WrapperNode [2021-11-12 23:39:47,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:39:47,188 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:39:47,189 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:39:47,189 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:39:47,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:39:47" (1/1) ... [2021-11-12 23:39:47,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:39:47" (1/1) ... [2021-11-12 23:39:47,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:39:47,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:39:47,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:39:47,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:39:47,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:39:47" (1/1) ... [2021-11-12 23:39:47,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:39:47" (1/1) ... [2021-11-12 23:39:47,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:39:47" (1/1) ... [2021-11-12 23:39:47,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:39:47" (1/1) ... [2021-11-12 23:39:48,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:39:47" (1/1) ... [2021-11-12 23:39:48,200 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:39:47" (1/1) ... [2021-11-12 23:39:48,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:39:47" (1/1) ... [2021-11-12 23:39:48,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:39:48,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:39:48,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:39:48,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:39:48,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:39:47" (1/1) ... [2021-11-12 23:39:48,407 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:39:48,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:39:48,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:39:48,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:39:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-12 23:39:48,491 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-12 23:39:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 23:39:48,491 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 23:39:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-12 23:39:48,492 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-12 23:39:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-12 23:39:48,492 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-12 23:39:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats32 [2021-11-12 23:39:48,492 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats32 [2021-11-12 23:39:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_remove [2021-11-12 23:39:48,493 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_remove [2021-11-12 23:39:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 23:39:48,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 23:39:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_led [2021-11-12 23:39:48,493 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_led [2021-11-12 23:39:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_alloc_rx_skbs [2021-11-12 23:39:48,494 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_alloc_rx_skbs [2021-11-12 23:39:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-12 23:39:48,494 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-12 23:39:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_supported_modes [2021-11-12 23:39:48,494 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_supported_modes [2021-11-12 23:39:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure rx_set_rss [2021-11-12 23:39:48,495 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_set_rss [2021-11-12 23:39:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_power_aux [2021-11-12 23:39:48,495 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_power_aux [2021-11-12 23:39:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-12 23:39:48,496 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-12 23:39:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2021-11-12 23:39:48,497 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2021-11-12 23:39:48,497 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-12 23:39:48,497 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-12 23:39:48,497 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_add_filter [2021-11-12 23:39:48,498 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_add_filter [2021-11-12 23:39:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_read [2021-11-12 23:39:48,498 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_read [2021-11-12 23:39:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-12 23:39:48,498 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-12 23:39:48,499 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_alloc [2021-11-12 23:39:48,499 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_alloc [2021-11-12 23:39:48,499 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-12 23:39:48,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-12 23:39:48,499 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2021-11-12 23:39:48,500 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2021-11-12 23:39:48,501 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-11-12 23:39:48,501 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-11-12 23:39:48,501 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_unlock [2021-11-12 23:39:48,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_unlock [2021-11-12 23:39:48,502 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2021-11-12 23:39:48,502 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2021-11-12 23:39:48,502 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-12 23:39:48,502 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-12 23:39:48,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 23:39:48,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 23:39:48,503 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-12 23:39:48,503 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-12 23:39:48,504 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_show_addr [2021-11-12 23:39:48,504 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_show_addr [2021-11-12 23:39:48,504 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-12 23:39:48,504 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-12 23:39:48,505 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_close [2021-11-12 23:39:48,505 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_close [2021-11-12 23:39:48,505 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-12 23:39:48,505 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-12 23:39:48,506 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_init_netdev [2021-11-12 23:39:48,506 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_init_netdev [2021-11-12 23:39:48,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 23:39:48,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 23:39:48,506 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-12 23:39:48,506 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-12 23:39:48,507 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_start [2021-11-12 23:39:48,507 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_start [2021-11-12 23:39:48,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:39:48,507 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-12 23:39:48,507 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-12 23:39:48,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-12 23:39:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:39:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:39:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-11-12 23:39:48,509 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-11-12 23:39:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 23:39:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats64 [2021-11-12 23:39:48,510 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats64 [2021-11-12 23:39:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-12 23:39:48,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-12 23:39:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-12 23:39:48,511 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-12 23:39:48,511 INFO L130 BoogieDeclarations]: Found specification of procedure netif_schedule_queue [2021-11-12 23:39:48,511 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_schedule_queue [2021-11-12 23:39:48,511 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_regs_len [2021-11-12 23:39:48,511 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_regs_len [2021-11-12 23:39:48,511 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-12 23:39:48,512 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-12 23:39:48,512 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-12 23:39:48,512 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-12 23:39:48,512 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_update [2021-11-12 23:39:48,512 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_update [2021-11-12 23:39:48,512 INFO L130 BoogieDeclarations]: Found specification of procedure pci_is_pcie [2021-11-12 23:39:48,513 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_is_pcie [2021-11-12 23:39:48,513 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-12 23:39:48,513 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-12 23:39:48,513 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-12 23:39:48,514 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-12 23:39:48,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-12 23:39:48,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-12 23:39:48,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 23:39:48,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 23:39:48,518 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_ramset [2021-11-12 23:39:48,518 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_ramset [2021-11-12 23:39:48,519 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-12 23:39:48,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-12 23:39:48,520 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-12 23:39:48,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-12 23:39:48,521 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_update_features [2021-11-12 23:39:48,528 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_update_features [2021-11-12 23:39:48,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-12 23:39:48,528 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-12 23:39:48,528 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_netpoll [2021-11-12 23:39:48,528 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_netpoll [2021-11-12 23:39:48,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-12 23:39:48,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-12 23:39:48,529 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-12 23:39:48,529 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-12 23:39:48,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-12 23:39:48,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-12 23:39:48,530 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_up [2021-11-12 23:39:48,530 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_up [2021-11-12 23:39:48,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-12 23:39:48,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-12 23:39:48,530 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-11-12 23:39:48,530 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-11-12 23:39:48,531 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-12 23:39:48,531 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-12 23:39:48,531 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-11-12 23:39:48,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-11-12 23:39:48,531 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-12 23:39:48,531 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-12 23:39:48,531 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_unmap [2021-11-12 23:39:48,532 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_unmap [2021-11-12 23:39:48,532 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-12 23:39:48,532 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-12 23:39:48,532 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_lock [2021-11-12 23:39:48,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_lock [2021-11-12 23:39:48,532 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-12 23:39:48,532 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-12 23:39:48,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:39:48,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-12 23:39:48,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-12 23:39:48,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-12 23:39:48,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-12 23:39:48,533 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_add [2021-11-12 23:39:48,533 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_add [2021-11-12 23:39:48,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-12 23:39:48,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-12 23:39:48,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-12 23:39:48,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-12 23:39:48,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2021-11-12 23:39:48,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2021-11-12 23:39:48,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2021-11-12 23:39:48,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2021-11-12 23:39:48,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-12 23:39:48,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-12 23:39:48,535 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_map_skb [2021-11-12 23:39:48,535 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_map_skb [2021-11-12 23:39:48,535 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_resume [2021-11-12 23:39:48,535 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_resume [2021-11-12 23:39:48,536 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_ring_size [2021-11-12 23:39:48,536 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_ring_size [2021-11-12 23:39:48,536 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_put_idx [2021-11-12 23:39:48,536 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_put_idx [2021-11-12 23:39:48,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 23:39:48,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 23:39:48,536 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-12 23:39:48,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-12 23:39:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:39:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-12 23:39:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 23:39:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 23:39:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 23:39:48,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 23:39:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 23:39:48,538 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_dma_map [2021-11-12 23:39:48,538 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_dma_map [2021-11-12 23:39:48,538 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2021-11-12 23:39:48,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2021-11-12 23:39:48,538 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read32 [2021-11-12 23:39:48,538 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read32 [2021-11-12 23:39:48,539 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-12 23:39:48,539 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-12 23:39:48,539 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_power_up [2021-11-12 23:39:48,539 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_power_up [2021-11-12 23:39:48,539 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-12 23:39:48,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-12 23:39:48,539 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_init [2021-11-12 23:39:48,539 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_init [2021-11-12 23:39:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2021-11-12 23:39:48,540 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2021-11-12 23:39:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_clean [2021-11-12 23:39:48,540 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_clean [2021-11-12 23:39:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-12 23:39:48,540 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-12 23:39:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-12 23:39:48,541 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-12 23:39:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-12 23:39:48,541 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-12 23:39:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_complete [2021-11-12 23:39:48,541 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_complete [2021-11-12 23:39:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_down [2021-11-12 23:39:48,541 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_down [2021-11-12 23:39:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-12 23:39:48,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-12 23:39:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_reinit [2021-11-12 23:39:48,542 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_reinit [2021-11-12 23:39:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2021-11-12 23:39:48,542 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2021-11-12 23:39:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-12 23:39:48,653 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-12 23:39:48,653 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-12 23:39:48,653 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-12 23:39:48,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 23:39:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read16 [2021-11-12 23:39:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read16 [2021-11-12 23:39:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:39:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:39:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write16 [2021-11-12 23:39:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write16 [2021-11-12 23:39:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-12 23:39:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-12 23:39:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-12 23:39:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-12 23:39:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_free_buffers [2021-11-12 23:39:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_free_buffers [2021-11-12 23:39:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read16 [2021-11-12 23:39:48,655 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read16 [2021-11-12 23:39:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:39:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-12 23:39:48,655 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-12 23:39:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 23:39:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:39:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 23:39:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 23:39:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 23:39:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 23:39:48,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 23:39:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_up [2021-11-12 23:39:48,656 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_up [2021-11-12 23:39:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-12 23:39:48,656 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-12 23:39:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2021-11-12 23:39:48,656 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2021-11-12 23:39:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_timeout [2021-11-12 23:39:48,656 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_timeout [2021-11-12 23:39:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-12 23:39:48,656 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-12 23:39:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_wol_supported [2021-11-12 23:39:48,656 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_wol_supported [2021-11-12 23:39:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-12 23:39:48,657 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-12 23:39:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write32 [2021-11-12 23:39:48,657 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write32 [2021-11-12 23:39:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read32 [2021-11-12 23:39:48,657 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read32 [2021-11-12 23:39:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-11-12 23:39:48,657 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-11-12 23:39:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-12 23:39:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_submit [2021-11-12 23:39:48,657 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_submit [2021-11-12 23:39:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-12 23:39:48,658 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-12 23:39:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-12 23:39:48,658 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-12 23:39:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vlan_mode [2021-11-12 23:39:48,658 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vlan_mode [2021-11-12 23:39:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_multicast [2021-11-12 23:39:48,658 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_multicast [2021-11-12 23:39:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read8 [2021-11-12 23:39:48,658 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read8 [2021-11-12 23:39:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-12 23:39:48,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-12 23:39:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2021-11-12 23:39:48,659 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2021-11-12 23:39:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_prefetch_init [2021-11-12 23:39:48,659 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_prefetch_init [2021-11-12 23:39:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read32 [2021-11-12 23:39:48,659 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read32 [2021-11-12 23:39:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_reset [2021-11-12 23:39:48,659 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_reset [2021-11-12 23:39:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-12 23:39:48,659 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-12 23:39:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure gma_set_addr [2021-11-12 23:39:48,659 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_set_addr [2021-11-12 23:39:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-12 23:39:48,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-12 23:39:48,660 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-12 23:39:48,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-12 23:39:48,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 23:39:48,660 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 23:39:48,660 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-12 23:39:48,660 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-12 23:39:48,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-12 23:39:48,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-12 23:39:48,660 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-12 23:39:48,660 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-12 23:39:48,660 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vpd_wait [2021-11-12 23:39:48,661 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vpd_wait [2021-11-12 23:39:48,661 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-11-12 23:39:48,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-11-12 23:39:48,661 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-12 23:39:48,661 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-12 23:39:48,661 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_shutdown [2021-11-12 23:39:48,661 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_shutdown [2021-11-12 23:39:48,661 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read16 [2021-11-12 23:39:48,661 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read16 [2021-11-12 23:39:48,661 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_le [2021-11-12 23:39:48,661 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_le [2021-11-12 23:39:48,661 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_stop [2021-11-12 23:39:48,661 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_stop [2021-11-12 23:39:48,662 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-12 23:39:48,667 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-12 23:39:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-12 23:39:48,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-12 23:39:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:39:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-12 23:39:48,668 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-12 23:39:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-12 23:39:48,668 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-12 23:39:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2021-11-12 23:39:48,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2021-11-12 23:39:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:39:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 23:39:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 23:39:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 23:39:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:39:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:39:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_nway_reset [2021-11-12 23:39:48,670 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_nway_reset [2021-11-12 23:39:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-12 23:39:48,670 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-12 23:39:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-12 23:39:48,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-12 23:39:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_down [2021-11-12 23:39:48,671 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_down [2021-11-12 23:39:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-12 23:39:48,671 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-12 23:39:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-12 23:39:48,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-12 23:39:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure __gm_phy_read [2021-11-12 23:39:48,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __gm_phy_read [2021-11-12 23:39:48,678 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-12 23:39:48,679 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-12 23:39:48,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-12 23:39:48,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-12 23:39:48,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 23:39:48,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 23:39:48,679 INFO L130 BoogieDeclarations]: Found specification of procedure tx_avail [2021-11-12 23:39:48,680 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_avail [2021-11-12 23:39:48,680 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_unmap_skb [2021-11-12 23:39:48,680 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_unmap_skb [2021-11-12 23:39:48,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-12 23:39:48,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-12 23:39:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2021-11-12 23:39:48,681 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2021-11-12 23:39:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-12 23:39:48,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-12 23:39:48,682 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_clk2us [2021-11-12 23:39:48,682 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_clk2us [2021-11-12 23:39:48,682 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_tx_stfwd [2021-11-12 23:39:48,682 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_tx_stfwd [2021-11-12 23:39:48,682 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_enable_rx_tx [2021-11-12 23:39:48,683 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_enable_rx_tx [2021-11-12 23:39:48,684 INFO L130 BoogieDeclarations]: Found specification of procedure gma_write16 [2021-11-12 23:39:48,684 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_write16 [2021-11-12 23:39:48,684 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-12 23:39:48,684 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-12 23:39:48,684 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_next_rx [2021-11-12 23:39:48,684 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_next_rx [2021-11-12 23:39:48,684 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-12 23:39:48,685 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-12 23:39:48,685 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-12 23:39:48,685 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-12 23:39:48,685 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-12 23:39:48,685 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-12 23:39:48,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sky2_cleanup_module_22_2 [2021-11-12 23:39:48,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sky2_cleanup_module_22_2 [2021-11-12 23:39:48,685 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-12 23:39:48,686 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-12 23:39:48,686 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2021-11-12 23:39:48,686 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2021-11-12 23:39:48,686 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_eeprom_len [2021-11-12 23:39:48,686 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_eeprom_len [2021-11-12 23:39:48,686 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 23:39:48,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 23:39:48,687 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_setup_irq [2021-11-12 23:39:48,687 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_setup_irq [2021-11-12 23:39:48,687 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-12 23:39:48,687 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-12 23:39:48,687 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-12 23:39:48,687 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-12 23:39:48,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 23:39:48,688 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_us2clk [2021-11-12 23:39:48,688 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_us2clk [2021-11-12 23:39:48,688 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-12 23:39:48,688 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-12 23:39:48,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 23:39:48,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 23:39:48,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 23:39:48,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 23:39:48,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 23:39:48,689 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_is_copper [2021-11-12 23:39:48,689 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_is_copper [2021-11-12 23:39:48,689 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2021-11-12 23:39:48,689 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2021-11-12 23:39:48,689 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-12 23:39:48,689 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-12 23:39:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_suspend [2021-11-12 23:39:48,690 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_suspend [2021-11-12 23:39:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2021-11-12 23:39:48,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2021-11-12 23:39:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-12 23:39:48,690 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-12 23:39:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-12 23:39:48,691 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-12 23:39:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write16 [2021-11-12 23:39:48,691 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write16 [2021-11-12 23:39:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2021-11-12 23:39:48,691 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2021-11-12 23:39:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 23:39:48,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 23:39:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-12 23:39:48,692 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-12 23:39:48,692 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write8 [2021-11-12 23:39:48,692 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write8 [2021-11-12 23:39:48,692 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_write [2021-11-12 23:39:48,692 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_write [2021-11-12 23:39:48,692 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-11-12 23:39:48,692 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-11-12 23:39:48,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2021-11-12 23:39:48,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2021-11-12 23:39:48,693 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-12 23:39:48,693 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-12 23:39:48,693 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-12 23:39:48,693 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-12 23:39:48,693 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write32 [2021-11-12 23:39:48,694 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write32 [2021-11-12 23:39:48,694 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read64 [2021-11-12 23:39:48,694 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read64 [2021-11-12 23:39:48,694 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_qset [2021-11-12 23:39:48,694 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_qset [2021-11-12 23:39:48,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-12 23:39:48,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-12 23:39:48,694 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-12 23:39:48,695 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-12 23:39:48,695 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_open [2021-11-12 23:39:48,695 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_open [2021-11-12 23:39:48,695 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-12 23:39:48,695 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_mhz [2021-11-12 23:39:48,695 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_mhz [2021-11-12 23:39:50,335 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 23:41:09,231 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-12 23:41:09,462 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:41:09,462 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-12 23:41:09,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:41:09 BoogieIcfgContainer [2021-11-12 23:41:09,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:41:09,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:41:09,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:41:09,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:41:09,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:39:38" (1/3) ... [2021-11-12 23:41:09,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a9150c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:41:09, skipping insertion in model container [2021-11-12 23:41:09,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:39:47" (2/3) ... [2021-11-12 23:41:09,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a9150c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:41:09, skipping insertion in model container [2021-11-12 23:41:09,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:41:09" (3/3) ... [2021-11-12 23:41:09,478 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-marvell-sky2.cil.i [2021-11-12 23:41:09,484 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:41:09,484 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-12 23:41:09,551 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:41:09,557 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 23:41:09,557 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-12 23:41:09,671 INFO L276 IsEmpty]: Start isEmpty. Operand has 4328 states, 2899 states have (on average 1.2921697136943773) internal successors, (3746), 2979 states have internal predecessors, (3746), 1217 states have call successors, (1217), 212 states have call predecessors, (1217), 211 states have return successors, (1207), 1182 states have call predecessors, (1207), 1207 states have call successors, (1207) [2021-11-12 23:41:09,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2021-11-12 23:41:09,707 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:41:09,708 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:41:09,709 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:41:09,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:41:09,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1857991974, now seen corresponding path program 1 times [2021-11-12 23:41:09,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:41:09,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687856244] [2021-11-12 23:41:09,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:41:09,745 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:41:09,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:41:09,748 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:41:09,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:41:25,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:41:26,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 5029 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:41:26,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:41:27,283 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 4464 trivial. 0 not checked. [2021-11-12 23:41:27,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:41:28,355 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4560 trivial. 0 not checked. [2021-11-12 23:41:28,356 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:41:28,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [687856244] [2021-11-12 23:41:28,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [687856244] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:41:28,357 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:41:28,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:41:28,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991866264] [2021-11-12 23:41:28,360 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:41:28,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:41:28,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:41:28,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:41:28,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:41:28,413 INFO L87 Difference]: Start difference. First operand has 4328 states, 2899 states have (on average 1.2921697136943773) internal successors, (3746), 2979 states have internal predecessors, (3746), 1217 states have call successors, (1217), 212 states have call predecessors, (1217), 211 states have return successors, (1207), 1182 states have call predecessors, (1207), 1207 states have call successors, (1207) Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (37), 4 states have call predecessors, (37), 4 states have call successors, (37) [2021-11-12 23:41:31,028 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:41:58,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:41:58,444 INFO L93 Difference]: Finished difference Result 16718 states and 24139 transitions. [2021-11-12 23:41:58,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:41:58,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (37), 4 states have call predecessors, (37), 4 states have call successors, (37) Word has length 381 [2021-11-12 23:41:58,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:41:58,607 INFO L225 Difference]: With dead ends: 16718 [2021-11-12 23:41:58,607 INFO L226 Difference]: Without dead ends: 12429 [2021-11-12 23:41:58,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 760 GetRequests, 758 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 23:41:58,657 INFO L933 BasicCegarLoop]: 8349 mSDtfsCounter, 11725 mSDsluCounter, 10771 mSDsCounter, 0 mSdLazyCounter, 2378 mSolverCounterSat, 25 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27518.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11725 SdHoareTripleChecker+Valid, 19120 SdHoareTripleChecker+Invalid, 2404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 115.85ms SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2378 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28967.22ms IncrementalHoareTripleChecker+Time [2021-11-12 23:41:58,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11725 Valid, 19120 Invalid, 2404 Unknown, 0 Unchecked, 115.85ms Time], IncrementalHoareTripleChecker [25 Valid, 2378 Invalid, 1 Unknown, 0 Unchecked, 28967.22ms Time] [2021-11-12 23:41:58,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12429 states. [2021-11-12 23:41:59,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12429 to 12421. [2021-11-12 23:41:59,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12421 states, 8297 states have (on average 1.280824394359407) internal successors, (10627), 8534 states have internal predecessors, (10627), 3494 states have call successors, (3494), 629 states have call predecessors, (3494), 628 states have return successors, (3491), 3416 states have call predecessors, (3491), 3491 states have call successors, (3491) [2021-11-12 23:41:59,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12421 states to 12421 states and 17612 transitions. [2021-11-12 23:41:59,805 INFO L78 Accepts]: Start accepts. Automaton has 12421 states and 17612 transitions. Word has length 381 [2021-11-12 23:41:59,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:41:59,811 INFO L470 AbstractCegarLoop]: Abstraction has 12421 states and 17612 transitions. [2021-11-12 23:41:59,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (37), 4 states have call predecessors, (37), 4 states have call successors, (37) [2021-11-12 23:41:59,813 INFO L276 IsEmpty]: Start isEmpty. Operand 12421 states and 17612 transitions. [2021-11-12 23:41:59,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2021-11-12 23:41:59,837 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:41:59,838 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:41:59,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:42:00,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:42:00,063 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:42:00,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:42:00,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1143678126, now seen corresponding path program 1 times [2021-11-12 23:42:00,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:42:00,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [621423037] [2021-11-12 23:42:00,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:42:00,074 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:42:00,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:42:00,075 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:42:00,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:42:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:42:16,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 5105 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:42:16,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:42:17,745 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 4464 trivial. 0 not checked. [2021-11-12 23:42:17,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:42:19,041 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4560 trivial. 0 not checked. [2021-11-12 23:42:19,041 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:42:19,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [621423037] [2021-11-12 23:42:19,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [621423037] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:42:19,041 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:42:19,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:42:19,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387956610] [2021-11-12 23:42:19,042 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:42:19,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:42:19,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:42:19,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:42:19,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:42:19,045 INFO L87 Difference]: Start difference. First operand 12421 states and 17612 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) [2021-11-12 23:42:21,600 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:42:47,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:42:47,084 INFO L93 Difference]: Finished difference Result 39370 states and 55754 transitions. [2021-11-12 23:42:47,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:42:47,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) Word has length 402 [2021-11-12 23:42:47,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:42:47,329 INFO L225 Difference]: With dead ends: 39370 [2021-11-12 23:42:47,330 INFO L226 Difference]: Without dead ends: 27018 [2021-11-12 23:42:47,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 802 GetRequests, 800 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 23:42:47,430 INFO L933 BasicCegarLoop]: 8187 mSDtfsCounter, 10727 mSDsluCounter, 10893 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 48 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25543.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10727 SdHoareTripleChecker+Valid, 19080 SdHoareTripleChecker+Invalid, 2313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 68.88ms SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26835.95ms IncrementalHoareTripleChecker+Time [2021-11-12 23:42:47,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10727 Valid, 19080 Invalid, 2313 Unknown, 0 Unchecked, 68.88ms Time], IncrementalHoareTripleChecker [48 Valid, 2264 Invalid, 1 Unknown, 0 Unchecked, 26835.95ms Time] [2021-11-12 23:42:47,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27018 states. [2021-11-12 23:42:49,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27018 to 27000. [2021-11-12 23:42:49,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27000 states, 17995 states have (on average 1.2791330925257016) internal successors, (23018), 18507 states have internal predecessors, (23018), 7582 states have call successors, (7582), 1424 states have call predecessors, (7582), 1421 states have return successors, (7579), 7399 states have call predecessors, (7579), 7579 states have call successors, (7579) [2021-11-12 23:42:49,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27000 states to 27000 states and 38179 transitions. [2021-11-12 23:42:49,195 INFO L78 Accepts]: Start accepts. Automaton has 27000 states and 38179 transitions. Word has length 402 [2021-11-12 23:42:49,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:42:49,198 INFO L470 AbstractCegarLoop]: Abstraction has 27000 states and 38179 transitions. [2021-11-12 23:42:49,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) [2021-11-12 23:42:49,199 INFO L276 IsEmpty]: Start isEmpty. Operand 27000 states and 38179 transitions. [2021-11-12 23:42:49,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2021-11-12 23:42:49,217 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:42:49,217 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 32, 32, 32, 32, 32, 32, 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, 1, 1, 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 23:42:49,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:42:49,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:42:49,431 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:42:49,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:42:49,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1800409099, now seen corresponding path program 1 times [2021-11-12 23:42:49,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:42:49,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [581461421] [2021-11-12 23:42:49,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:42:49,438 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:42:49,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:42:49,439 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:42:49,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:43:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:43:05,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 5092 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:43:05,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:43:06,828 INFO L134 CoverageAnalysis]: Checked inductivity of 4564 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 4468 trivial. 0 not checked. [2021-11-12 23:43:06,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:43:08,119 INFO L134 CoverageAnalysis]: Checked inductivity of 4564 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4564 trivial. 0 not checked. [2021-11-12 23:43:08,120 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:43:08,120 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [581461421] [2021-11-12 23:43:08,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [581461421] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:43:08,120 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:43:08,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 23:43:08,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389438216] [2021-11-12 23:43:08,121 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:43:08,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:43:08,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:43:08,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:43:08,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:43:08,124 INFO L87 Difference]: Start difference. First operand 27000 states and 38179 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-12 23:43:10,696 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:43:12,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:43:12,865 INFO L93 Difference]: Finished difference Result 76683 states and 108440 transitions. [2021-11-12 23:43:12,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:43:12,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 415 [2021-11-12 23:43:12,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:43:13,245 INFO L225 Difference]: With dead ends: 76683 [2021-11-12 23:43:13,245 INFO L226 Difference]: Without dead ends: 49752 [2021-11-12 23:43:13,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 828 GetRequests, 827 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 23:43:13,426 INFO L933 BasicCegarLoop]: 7190 mSDtfsCounter, 5801 mSDsluCounter, 5986 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3028.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5801 SdHoareTripleChecker+Valid, 13176 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.56ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3155.40ms IncrementalHoareTripleChecker+Time [2021-11-12 23:43:13,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5801 Valid, 13176 Invalid, 62 Unknown, 0 Unchecked, 28.56ms Time], IncrementalHoareTripleChecker [13 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 3155.40ms Time] [2021-11-12 23:43:13,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49752 states. [2021-11-12 23:43:16,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49752 to 49737. [2021-11-12 23:43:16,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49737 states, 33151 states have (on average 1.2780911586377486) internal successors, (42370), 34112 states have internal predecessors, (42370), 13956 states have call successors, (13956), 2633 states have call predecessors, (13956), 2628 states have return successors, (13953), 13608 states have call predecessors, (13953), 13953 states have call successors, (13953) [2021-11-12 23:43:17,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49737 states to 49737 states and 70279 transitions. [2021-11-12 23:43:17,541 INFO L78 Accepts]: Start accepts. Automaton has 49737 states and 70279 transitions. Word has length 415 [2021-11-12 23:43:17,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:43:17,542 INFO L470 AbstractCegarLoop]: Abstraction has 49737 states and 70279 transitions. [2021-11-12 23:43:17,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-12 23:43:17,543 INFO L276 IsEmpty]: Start isEmpty. Operand 49737 states and 70279 transitions. [2021-11-12 23:43:17,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2021-11-12 23:43:17,570 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:43:17,573 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 33, 33, 33, 33, 33, 33, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:43:17,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-12 23:43:17,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:43:17,773 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:43:17,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:43:17,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1431968713, now seen corresponding path program 1 times [2021-11-12 23:43:17,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:43:17,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1760787700] [2021-11-12 23:43:17,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:43:17,779 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:43:17,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:43:17,780 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:43:17,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:43:32,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:43:33,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 5189 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:43:33,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:43:41,466 INFO L134 CoverageAnalysis]: Checked inductivity of 5202 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5202 trivial. 0 not checked. [2021-11-12 23:43:41,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:43:44,564 INFO L134 CoverageAnalysis]: Checked inductivity of 5202 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5202 trivial. 0 not checked. [2021-11-12 23:43:44,564 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:43:44,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1760787700] [2021-11-12 23:43:44,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1760787700] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:43:44,565 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:43:44,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-12 23:43:44,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728630732] [2021-11-12 23:43:44,566 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:43:44,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:43:44,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:43:44,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:43:44,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:43:44,569 INFO L87 Difference]: Start difference. First operand 49737 states and 70279 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2021-11-12 23:43:46,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:43:46,622 INFO L93 Difference]: Finished difference Result 49737 states and 70279 transitions. [2021-11-12 23:43:46,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:43:46,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) Word has length 453 [2021-11-12 23:43:46,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:43:46,883 INFO L225 Difference]: With dead ends: 49737 [2021-11-12 23:43:46,883 INFO L226 Difference]: Without dead ends: 49644 [2021-11-12 23:43:46,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 905 GetRequests, 901 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:43:46,921 INFO L933 BasicCegarLoop]: 6027 mSDtfsCounter, 5864 mSDsluCounter, 6027 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 569.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5864 SdHoareTripleChecker+Valid, 12054 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.81ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 653.74ms IncrementalHoareTripleChecker+Time [2021-11-12 23:43:46,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5864 Valid, 12054 Invalid, 4 Unknown, 0 Unchecked, 27.81ms Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 653.74ms Time] [2021-11-12 23:43:46,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49644 states. [2021-11-12 23:43:50,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49644 to 49590. [2021-11-12 23:43:50,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49590 states, 33050 states have (on average 1.2770650529500756) internal successors, (42207), 33993 states have internal predecessors, (42207), 13913 states have call successors, (13913), 2626 states have call predecessors, (13913), 2626 states have return successors, (13913), 13587 states have call predecessors, (13913), 13913 states have call successors, (13913) [2021-11-12 23:43:50,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49590 states to 49590 states and 70033 transitions. [2021-11-12 23:43:50,487 INFO L78 Accepts]: Start accepts. Automaton has 49590 states and 70033 transitions. Word has length 453 [2021-11-12 23:43:50,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:43:50,490 INFO L470 AbstractCegarLoop]: Abstraction has 49590 states and 70033 transitions. [2021-11-12 23:43:50,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2021-11-12 23:43:50,490 INFO L276 IsEmpty]: Start isEmpty. Operand 49590 states and 70033 transitions. [2021-11-12 23:43:50,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2021-11-12 23:43:50,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:43:50,599 INFO L514 BasicCegarLoop]: trace histogram [38, 38, 33, 33, 33, 33, 33, 33, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:43:50,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:43:50,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:43:50,800 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:43:50,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:43:50,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1795519087, now seen corresponding path program 1 times [2021-11-12 23:43:50,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:43:50,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1959749649] [2021-11-12 23:43:50,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:43:50,808 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:43:50,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:43:50,809 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:43:50,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:44:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:06,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 5282 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:44:06,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:08,355 INFO L134 CoverageAnalysis]: Checked inductivity of 5354 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 5082 trivial. 0 not checked. [2021-11-12 23:44:08,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:09,745 INFO L134 CoverageAnalysis]: Checked inductivity of 5354 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 5337 trivial. 0 not checked. [2021-11-12 23:44:09,745 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:44:09,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1959749649] [2021-11-12 23:44:09,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1959749649] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:44:09,745 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:44:09,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:44:09,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659087042] [2021-11-12 23:44:09,746 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:44:09,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:44:09,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:44:09,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:44:09,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:44:09,748 INFO L87 Difference]: Start difference. First operand 49590 states and 70033 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 4 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (57), 4 states have call predecessors, (57), 4 states have call successors, (57) [2021-11-12 23:44:12,290 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 23:44:43,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:44:43,833 INFO L93 Difference]: Finished difference Result 140942 states and 199120 transitions. [2021-11-12 23:44:43,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:44:43,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 4 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (57), 4 states have call predecessors, (57), 4 states have call successors, (57) Word has length 509 [2021-11-12 23:44:43,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:44:44,525 INFO L225 Difference]: With dead ends: 140942 [2021-11-12 23:44:44,525 INFO L226 Difference]: Without dead ends: 95006 [2021-11-12 23:44:44,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1016 GetRequests, 1014 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 23:44:44,741 INFO L933 BasicCegarLoop]: 12408 mSDtfsCounter, 12115 mSDsluCounter, 9353 mSDsCounter, 0 mSdLazyCounter, 2431 mSolverCounterSat, 1275 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28276.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12115 SdHoareTripleChecker+Valid, 21761 SdHoareTripleChecker+Invalid, 3707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 63.42ms SdHoareTripleChecker+Time, 1275 IncrementalHoareTripleChecker+Valid, 2431 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30134.44ms IncrementalHoareTripleChecker+Time [2021-11-12 23:44:44,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12115 Valid, 21761 Invalid, 3707 Unknown, 0 Unchecked, 63.42ms Time], IncrementalHoareTripleChecker [1275 Valid, 2431 Invalid, 1 Unknown, 0 Unchecked, 30134.44ms Time] [2021-11-12 23:44:44,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95006 states. [2021-11-12 23:44:49,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95006 to 95002. [2021-11-12 23:44:49,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95002 states, 63336 states have (on average 1.2778672476948338) internal successors, (80935), 65143 states have internal predecessors, (80935), 26637 states have call successors, (26637), 5028 states have call predecessors, (26637), 5028 states have return successors, (26637), 26019 states have call predecessors, (26637), 26637 states have call successors, (26637) [2021-11-12 23:44:50,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95002 states to 95002 states and 134209 transitions. [2021-11-12 23:44:50,306 INFO L78 Accepts]: Start accepts. Automaton has 95002 states and 134209 transitions. Word has length 509 [2021-11-12 23:44:50,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:44:50,307 INFO L470 AbstractCegarLoop]: Abstraction has 95002 states and 134209 transitions. [2021-11-12 23:44:50,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 4 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (57), 4 states have call predecessors, (57), 4 states have call successors, (57) [2021-11-12 23:44:50,308 INFO L276 IsEmpty]: Start isEmpty. Operand 95002 states and 134209 transitions. [2021-11-12 23:44:50,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2021-11-12 23:44:50,446 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:50,446 INFO L514 BasicCegarLoop]: trace histogram [39, 39, 33, 33, 33, 33, 33, 33, 5, 5, 5, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:44:50,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:44:50,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:44:50,663 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:44:50,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:50,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1370296650, now seen corresponding path program 1 times [2021-11-12 23:44:50,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:44:50,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [414879835] [2021-11-12 23:44:50,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:50,672 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:44:50,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:44:50,673 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:44:50,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed1a852-24a2-49cf-914b-b2d579091dad/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:45:06,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:07,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 5312 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:45:07,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:09,312 INFO L134 CoverageAnalysis]: Checked inductivity of 5447 backedges. 476 proven. 0 refuted. 0 times theorem prover too weak. 4971 trivial. 0 not checked. [2021-11-12 23:45:09,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:10,897 INFO L134 CoverageAnalysis]: Checked inductivity of 5447 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5431 trivial. 0 not checked. [2021-11-12 23:45:10,898 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:45:10,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [414879835] [2021-11-12 23:45:10,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [414879835] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:45:10,898 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:45:10,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:45:10,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979737584] [2021-11-12 23:45:10,899 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:45:10,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:45:10,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:45:10,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:45:10,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:45:10,901 INFO L87 Difference]: Start difference. First operand 95002 states and 134209 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 4 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) [2021-11-12 23:45:13,456 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:45:46,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:46,835 INFO L93 Difference]: Finished difference Result 274278 states and 387390 transitions. [2021-11-12 23:45:46,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:45:46,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 4 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) Word has length 502 [2021-11-12 23:45:46,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:48,301 INFO L225 Difference]: With dead ends: 274278 [2021-11-12 23:45:48,302 INFO L226 Difference]: Without dead ends: 182930 [2021-11-12 23:45:48,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1002 GetRequests, 1000 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 23:45:48,602 INFO L933 BasicCegarLoop]: 12166 mSDtfsCounter, 11205 mSDsluCounter, 9882 mSDsCounter, 0 mSdLazyCounter, 2483 mSolverCounterSat, 34 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26382.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11205 SdHoareTripleChecker+Valid, 22048 SdHoareTripleChecker+Invalid, 2518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 58.94ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27730.02ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:48,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11205 Valid, 22048 Invalid, 2518 Unknown, 0 Unchecked, 58.94ms Time], IncrementalHoareTripleChecker [34 Valid, 2483 Invalid, 1 Unknown, 0 Unchecked, 27730.02ms Time] [2021-11-12 23:45:48,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182930 states.