./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-atheros-atl1c-atl1c.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_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/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_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/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-atheros-atl1c-atl1c.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/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_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/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 189c9c1835fba5722e0b94d8232e079a97aae7f53f40713e9106571ffb9cd9c4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:37:50,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:37:50,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:37:50,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:37:50,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:37:50,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:37:50,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:37:50,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:37:50,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:37:50,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:37:50,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:37:50,402 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:37:50,403 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:37:50,404 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:37:50,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:37:50,408 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:37:50,410 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:37:50,411 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:37:50,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:37:50,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:37:50,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:37:50,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:37:50,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:37:50,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:37:50,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:37:50,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:37:50,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:37:50,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:37:50,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:37:50,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:37:50,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:37:50,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:37:50,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:37:50,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:37:50,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:37:50,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:37:50,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:37:50,452 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:37:50,452 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:37:50,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:37:50,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:37:50,457 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-13 02:37:50,501 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:37:50,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:37:50,504 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:37:50,505 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:37:50,505 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:37:50,505 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:37:50,505 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:37:50,506 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 02:37:50,506 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:37:50,506 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:37:50,507 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 02:37:50,507 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 02:37:50,508 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:37:50,508 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 02:37:50,508 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 02:37:50,508 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 02:37:50,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:37:50,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:37:50,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:37:50,510 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:37:50,510 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:37:50,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:37:50,511 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:37:50,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:37:50,511 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:37:50,511 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:37:50,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:37:50,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:37:50,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:37:50,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:37:50,514 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:37:50,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:37:50,515 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 02:37:50,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 02:37:50,516 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:37:50,516 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:37:50,516 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:37:50,516 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_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 189c9c1835fba5722e0b94d8232e079a97aae7f53f40713e9106571ffb9cd9c4 [2021-11-13 02:37:50,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:37:50,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:37:50,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:37:50,945 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:37:50,946 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:37:50,948 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2021-11-13 02:37:51,020 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/data/29d009578/4201aae3abf644188a0c8e09b625a00f/FLAGdf6ed9a6b [2021-11-13 02:37:52,376 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:37:52,377 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2021-11-13 02:37:52,490 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/data/29d009578/4201aae3abf644188a0c8e09b625a00f/FLAGdf6ed9a6b [2021-11-13 02:37:52,948 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/data/29d009578/4201aae3abf644188a0c8e09b625a00f [2021-11-13 02:37:52,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:37:52,954 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:37:52,956 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:37:52,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:37:52,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:37:52,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:37:52" (1/1) ... [2021-11-13 02:37:52,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a43037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:52, skipping insertion in model container [2021-11-13 02:37:52,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:37:52" (1/1) ... [2021-11-13 02:37:52,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:37:53,251 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:37:56,889 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:37:56,919 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:37:56,920 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:37:57,470 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:37:57,690 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:37:57,704 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:37:59,522 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_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484314,484327] [2021-11-13 02:37:59,526 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_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484461,484474] [2021-11-13 02:37:59,527 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_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484600,484613] [2021-11-13 02:37:59,528 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_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484758,484771] [2021-11-13 02:37:59,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:37:59,689 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) [2021-11-13 02:37:59,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6183ddbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:59, skipping insertion in model container [2021-11-13 02:37:59,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:37:59,691 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 02:37:59,695 INFO L158 Benchmark]: Toolchain (without parser) took 6738.58ms. Allocated memory was 125.8MB in the beginning and 211.8MB in the end (delta: 86.0MB). Free memory was 87.9MB in the beginning and 146.3MB in the end (delta: -58.5MB). Peak memory consumption was 90.3MB. Max. memory is 16.1GB. [2021-11-13 02:37:59,696 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 92.3MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:37:59,698 INFO L158 Benchmark]: CACSL2BoogieTranslator took 6735.54ms. Allocated memory was 125.8MB in the beginning and 211.8MB in the end (delta: 86.0MB). Free memory was 87.9MB in the beginning and 146.3MB in the end (delta: -58.5MB). Peak memory consumption was 90.3MB. Max. memory is 16.1GB. [2021-11-13 02:37:59,701 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 92.3MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 6735.54ms. Allocated memory was 125.8MB in the beginning and 211.8MB in the end (delta: 86.0MB). Free memory was 87.9MB in the beginning and 146.3MB in the end (delta: -58.5MB). Peak memory consumption was 90.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7091]: 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_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/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_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/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-atheros-atl1c-atl1c.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/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_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/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 189c9c1835fba5722e0b94d8232e079a97aae7f53f40713e9106571ffb9cd9c4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:38:02,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:38:02,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:38:02,570 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:38:02,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:38:02,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:38:02,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:38:02,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:38:02,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:38:02,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:38:02,602 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:38:02,604 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:38:02,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:38:02,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:38:02,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:38:02,617 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:38:02,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:38:02,629 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:38:02,632 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:38:02,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:38:02,646 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:38:02,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:38:02,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:38:02,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:38:02,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:38:02,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:38:02,670 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:38:02,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:38:02,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:38:02,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:38:02,676 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:38:02,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:38:02,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:38:02,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:38:02,684 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:38:02,684 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:38:02,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:38:02,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:38:02,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:38:02,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:38:02,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:38:02,697 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-13 02:38:02,758 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:38:02,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:38:02,760 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:38:02,760 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:38:02,761 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:38:02,761 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:38:02,761 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:38:02,762 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:38:02,762 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:38:02,762 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:38:02,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:38:02,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:38:02,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:38:02,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:38:02,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:38:02,767 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:38:02,767 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 02:38:02,768 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 02:38:02,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:38:02,768 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:38:02,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:38:02,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:38:02,769 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 02:38:02,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:38:02,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:38:02,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:38:02,771 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:38:02,771 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:38:02,771 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 02:38:02,772 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 02:38:02,772 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:38:02,772 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:38:02,772 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:38:02,773 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_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 189c9c1835fba5722e0b94d8232e079a97aae7f53f40713e9106571ffb9cd9c4 [2021-11-13 02:38:03,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:38:03,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:38:03,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:38:03,335 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:38:03,336 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:38:03,338 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2021-11-13 02:38:03,418 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/data/e0bc6e6a2/59539a0fc9e848158c0a6fcd6051a6ef/FLAGbe7629c50 [2021-11-13 02:38:04,791 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:38:04,793 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2021-11-13 02:38:04,913 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/data/e0bc6e6a2/59539a0fc9e848158c0a6fcd6051a6ef/FLAGbe7629c50 [2021-11-13 02:38:05,302 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/data/e0bc6e6a2/59539a0fc9e848158c0a6fcd6051a6ef [2021-11-13 02:38:05,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:38:05,309 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:38:05,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:38:05,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:38:05,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:38:05,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:38:05" (1/1) ... [2021-11-13 02:38:05,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@510a4a44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:38:05, skipping insertion in model container [2021-11-13 02:38:05,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:38:05" (1/1) ... [2021-11-13 02:38:05,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:38:05,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:38:11,543 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_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484314,484327] [2021-11-13 02:38:11,547 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_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484461,484474] [2021-11-13 02:38:11,548 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_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484600,484613] [2021-11-13 02:38:11,548 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_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484758,484771] [2021-11-13 02:38:11,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:38:11,688 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 02:38:11,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:38:12,504 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_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484314,484327] [2021-11-13 02:38:12,505 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_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484461,484474] [2021-11-13 02:38:12,505 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_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484600,484613] [2021-11-13 02:38:12,506 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_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484758,484771] [2021-11-13 02:38:12,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:38:12,543 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:38:13,216 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_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484314,484327] [2021-11-13 02:38:13,217 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_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484461,484474] [2021-11-13 02:38:13,217 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_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484600,484613] [2021-11-13 02:38:13,218 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_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484758,484771] [2021-11-13 02:38:13,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:38:13,731 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:38:13,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:38:13 WrapperNode [2021-11-13 02:38:13,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:38:13,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:38:13,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:38:13,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:38:13,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:38:13" (1/1) ... [2021-11-13 02:38:14,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:38:13" (1/1) ... [2021-11-13 02:38:14,488 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:38:14,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:38:14,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:38:14,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:38:14,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:38:13" (1/1) ... [2021-11-13 02:38:14,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:38:13" (1/1) ... [2021-11-13 02:38:14,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:38:13" (1/1) ... [2021-11-13 02:38:14,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:38:13" (1/1) ... [2021-11-13 02:38:15,020 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:38:13" (1/1) ... [2021-11-13 02:38:15,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:38:13" (1/1) ... [2021-11-13 02:38:15,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:38:13" (1/1) ... [2021-11-13 02:38:15,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:38:15,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:38:15,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:38:15,246 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:38:15,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:38:13" (1/1) ... [2021-11-13 02:38:15,255 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:38:15,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:38:15,282 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:38:15,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:38:15,334 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-13 02:38:15,335 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-13 02:38:15,335 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-13 02:38:15,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-13 02:38:15,335 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_core [2021-11-13 02:38:15,335 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_core [2021-11-13 02:38:15,335 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-11-13 02:38:15,336 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-11-13 02:38:15,336 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_post_phy_linkchg [2021-11-13 02:38:15,336 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_post_phy_linkchg [2021-11-13 02:38:15,336 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-13 02:38:15,336 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-13 02:38:15,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 02:38:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 02:38:15,337 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-13 02:38:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-13 02:38:15,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 02:38:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 02:38:15,337 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_rx_ring [2021-11-13 02:38:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_rx_ring [2021-11-13 02:38:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-11-13 02:38:15,338 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-11-13 02:38:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-13 02:38:15,338 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-13 02:38:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-13 02:38:15,338 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-13 02:38:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-13 02:38:15,339 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-13 02:38:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_current_addr [2021-11-13 02:38:15,339 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_current_addr [2021-11-13 02:38:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-13 02:38:15,339 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-13 02:38:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-13 02:38:15,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-13 02:38:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_mac [2021-11-13 02:38:15,340 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_mac [2021-11-13 02:38:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_disable [2021-11-13 02:38:15,340 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_disable [2021-11-13 02:38:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_stop_phy_polling [2021-11-13 02:38:15,341 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_stop_phy_polling [2021-11-13 02:38:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-13 02:38:15,341 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-13 02:38:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-13 02:38:15,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-13 02:38:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-13 02:38:15,341 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-13 02:38:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-13 02:38:15,342 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-13 02:38:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-13 02:38:15,342 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-13 02:38:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-13 02:38:15,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-13 02:38:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-11-13 02:38:15,342 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-11-13 02:38:15,343 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-13 02:38:15,343 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-13 02:38:15,343 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-13 02:38:15,343 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-13 02:38:15,343 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-13 02:38:15,343 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-13 02:38:15,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 02:38:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-13 02:38:15,344 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-13 02:38:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_speed_and_duplex [2021-11-13 02:38:15,344 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_speed_and_duplex [2021-11-13 02:38:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-13 02:38:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 02:38:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 02:38:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-13 02:38:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-13 02:38:15,345 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-13 02:38:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_close [2021-11-13 02:38:15,345 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_close [2021-11-13 02:38:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-13 02:38:15,345 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-13 02:38:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-13 02:38:15,346 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-13 02:38:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_reg [2021-11-13 02:38:15,346 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_reg [2021-11-13 02:38:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_init [2021-11-13 02:38:15,346 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_init [2021-11-13 02:38:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_dbg [2021-11-13 02:38:15,346 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_dbg [2021-11-13 02:38:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_regs_len [2021-11-13 02:38:15,347 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_regs_len [2021-11-13 02:38:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-13 02:38:15,347 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-13 02:38:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-13 02:38:15,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-13 02:38:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_ring_resources [2021-11-13 02:38:15,347 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_ring_resources [2021-11-13 02:38:15,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-13 02:38:15,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-13 02:38:15,348 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-13 02:38:15,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-13 02:38:15,348 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-13 02:38:15,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-13 02:38:15,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 02:38:15,349 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 02:38:15,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-13 02:38:15,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-13 02:38:15,349 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-13 02:38:15,349 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-13 02:38:15,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-13 02:38:15,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-13 02:38:15,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-13 02:38:15,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-13 02:38:15,350 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-13 02:38:15,350 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-13 02:38:15,350 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_multi [2021-11-13 02:38:15,350 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_multi [2021-11-13 02:38:15,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 02:38:15,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-13 02:38:15,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-13 02:38:15,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-13 02:38:15,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-13 02:38:15,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-13 02:38:15,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-13 02:38:15,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-13 02:38:15,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-13 02:38:15,352 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-13 02:38:15,352 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-13 02:38:15,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 02:38:15,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 02:38:15,352 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-13 02:38:15,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-13 02:38:15,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 02:38:15,353 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_start_phy_polling [2021-11-13 02:38:15,353 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_start_phy_polling [2021-11-13 02:38:15,353 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-11-13 02:38:15,353 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-11-13 02:38:15,353 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-13 02:38:15,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-13 02:38:15,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-13 02:38:15,353 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 02:38:15,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 02:38:15,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-13 02:38:15,354 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-13 02:38:15,354 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-13 02:38:15,354 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-11-13 02:38:15,354 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-11-13 02:38:15,354 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-13 02:38:15,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-13 02:38:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_core [2021-11-13 02:38:15,355 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_core [2021-11-13 02:38:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_until_idle [2021-11-13 02:38:15,355 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_until_idle [2021-11-13 02:38:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-13 02:38:15,355 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-13 02:38:15,356 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-13 02:38:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-13 02:38:15,356 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_link_status [2021-11-13 02:38:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_link_status [2021-11-13 02:38:15,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-13 02:38:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-13 02:38:15,356 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_alloc_rx_buffer [2021-11-13 02:38:15,357 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_alloc_rx_buffer [2021-11-13 02:38:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_io_resume [2021-11-13 02:38:15,357 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_io_resume [2021-11-13 02:38:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_dbg [2021-11-13 02:38:15,357 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_dbg [2021-11-13 02:38:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_mdio_idle [2021-11-13 02:38:15,357 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_mdio_idle [2021-11-13 02:38:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-13 02:38:15,358 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-13 02:38:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-13 02:38:15,358 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-13 02:38:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-13 02:38:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_vlan_mode [2021-11-13 02:38:15,358 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_vlan_mode [2021-11-13 02:38:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tx_buffer [2021-11-13 02:38:15,359 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tx_buffer [2021-11-13 02:38:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-11-13 02:38:15,359 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-11-13 02:38:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_down [2021-11-13 02:38:15,359 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_down [2021-11-13 02:38:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_suspend [2021-11-13 02:38:15,359 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_suspend [2021-11-13 02:38:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:38:15,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:38:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-13 02:38:15,360 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-13 02:38:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-13 02:38:15,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-13 02:38:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 02:38:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-13 02:38:15,361 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-13 02:38:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-13 02:38:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 02:38:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 02:38:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-13 02:38:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 02:38:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 02:38:15,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 02:38:15,362 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-13 02:38:15,362 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-13 02:38:15,362 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_tx_timeout [2021-11-13 02:38:15,362 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_tx_timeout [2021-11-13 02:38:15,362 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-13 02:38:15,362 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-13 02:38:15,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-13 02:38:15,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-13 02:38:15,363 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tpd [2021-11-13 02:38:15,363 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tpd [2021-11-13 02:38:15,363 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_hw_set_mac_addr [2021-11-13 02:38:15,363 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_hw_set_mac_addr [2021-11-13 02:38:15,363 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-13 02:38:15,363 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-13 02:38:15,363 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-13 02:38:15,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-13 02:38:15,364 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-13 02:38:15,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-13 02:38:15,364 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_restart_autoneg [2021-11-13 02:38:15,364 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_restart_autoneg [2021-11-13 02:38:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_rxbufsize [2021-11-13 02:38:15,365 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_rxbufsize [2021-11-13 02:38:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-13 02:38:15,365 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-13 02:38:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 02:38:15,365 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 02:38:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_irq [2021-11-13 02:38:15,366 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_irq [2021-11-13 02:38:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-13 02:38:15,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-13 02:38:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_ext [2021-11-13 02:38:15,366 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_ext [2021-11-13 02:38:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-13 02:38:15,366 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-13 02:38:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-13 02:38:15,367 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-13 02:38:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:38:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-11-13 02:38:15,367 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-11-13 02:38:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-13 02:38:15,367 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-13 02:38:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_nway_reset [2021-11-13 02:38:15,368 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_nway_reset [2021-11-13 02:38:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_dma_ring [2021-11-13 02:38:15,368 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_dma_ring [2021-11-13 02:38:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-13 02:38:15,368 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-13 02:38:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2021-11-13 02:38:15,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2021-11-13 02:38:15,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 02:38:15,369 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_enable [2021-11-13 02:38:15,369 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_enable [2021-11-13 02:38:15,369 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-13 02:38:15,369 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-13 02:38:15,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-13 02:38:15,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 02:38:15,369 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_eeprom_len [2021-11-13 02:38:15,369 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_eeprom_len [2021-11-13 02:38:15,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-13 02:38:15,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 02:38:15,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 02:38:15,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-13 02:38:15,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-13 02:38:15,370 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_eeprom_exist [2021-11-13 02:38:15,370 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_eeprom_exist [2021-11-13 02:38:15,370 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-13 02:38:15,371 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-13 02:38:15,371 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-13 02:38:15,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-13 02:38:15,371 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-13 02:38:15,371 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-13 02:38:15,371 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_netpoll [2021-11-13 02:38:15,371 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_netpoll [2021-11-13 02:38:15,371 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 02:38:15,372 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 02:38:15,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-13 02:38:15,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-13 02:38:15,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-13 02:38:15,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-13 02:38:15,372 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_configure [2021-11-13 02:38:15,372 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_configure [2021-11-13 02:38:15,372 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-11-13 02:38:15,372 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-11-13 02:38:15,373 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_tx_ring [2021-11-13 02:38:15,373 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_tx_ring [2021-11-13 02:38:15,373 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_reset [2021-11-13 02:38:15,373 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_reset [2021-11-13 02:38:15,373 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_open [2021-11-13 02:38:15,373 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_open [2021-11-13 02:38:15,373 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-13 02:38:15,373 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-13 02:38:15,374 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-13 02:38:15,374 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-13 02:38:15,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_atl1c_driver_exit_16_2 [2021-11-13 02:38:15,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_atl1c_driver_exit_16_2 [2021-11-13 02:38:15,374 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-13 02:38:15,374 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-13 02:38:15,374 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-13 02:38:15,374 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-13 02:38:15,375 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-13 02:38:15,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-13 02:38:15,375 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_intr [2021-11-13 02:38:15,375 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_intr [2021-11-13 02:38:15,375 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-13 02:38:15,375 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-13 02:38:15,375 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_power_saving [2021-11-13 02:38:15,376 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_power_saving [2021-11-13 02:38:15,376 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_setup_adv [2021-11-13 02:38:15,376 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_setup_adv [2021-11-13 02:38:15,376 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-13 02:38:15,376 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-13 02:38:15,376 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-13 02:38:15,376 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-13 02:38:15,376 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_buffer [2021-11-13 02:38:15,377 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_buffer [2021-11-13 02:38:15,377 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_remove [2021-11-13 02:38:15,377 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_remove [2021-11-13 02:38:15,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-13 02:38:15,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-13 02:38:15,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-13 02:38:15,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-13 02:38:15,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 02:38:15,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 02:38:15,378 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-13 02:38:15,378 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-13 02:38:15,378 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-13 02:38:15,378 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-13 02:38:15,378 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_up [2021-11-13 02:38:15,378 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_up [2021-11-13 02:38:15,379 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-13 02:38:15,379 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-13 02:38:15,379 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_disable_l0s_l1 [2021-11-13 02:38:15,379 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_disable_l0s_l1 [2021-11-13 02:38:15,379 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_resume [2021-11-13 02:38:15,379 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_resume [2021-11-13 02:38:15,379 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2021-11-13 02:38:15,379 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2021-11-13 02:38:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_pcie [2021-11-13 02:38:15,380 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_pcie [2021-11-13 02:38:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-13 02:38:15,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-13 02:38:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-13 02:38:15,380 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-13 02:38:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_shutdown [2021-11-13 02:38:15,380 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_shutdown [2021-11-13 02:38:15,381 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_aspm [2021-11-13 02:38:15,381 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_aspm [2021-11-13 02:38:15,381 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-11-13 02:38:15,381 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-11-13 02:38:15,381 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-13 02:38:15,381 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-13 02:38:15,381 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-13 02:38:15,382 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-13 02:38:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-13 02:38:15,382 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-13 02:38:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_reg [2021-11-13 02:38:15,382 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_reg [2021-11-13 02:38:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-13 02:38:15,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-13 02:38:17,901 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 02:39:24,771 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-13 02:39:28,138 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:39:28,138 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 02:39:28,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:39:28 BoogieIcfgContainer [2021-11-13 02:39:28,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:39:28,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:39:28,150 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:39:28,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:39:28,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:38:05" (1/3) ... [2021-11-13 02:39:28,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54bc5419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:39:28, skipping insertion in model container [2021-11-13 02:39:28,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:38:13" (2/3) ... [2021-11-13 02:39:28,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54bc5419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:39:28, skipping insertion in model container [2021-11-13 02:39:28,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:39:28" (3/3) ... [2021-11-13 02:39:28,156 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2021-11-13 02:39:28,162 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:39:28,163 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-13 02:39:28,240 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:39:28,247 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 [2021-11-13 02:39:28,247 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-13 02:39:28,363 INFO L276 IsEmpty]: Start isEmpty. Operand has 4049 states, 2766 states have (on average 1.2657266811279826) internal successors, (3501), 2805 states have internal predecessors, (3501), 1121 states have call successors, (1121), 161 states have call predecessors, (1121), 160 states have return successors, (1112), 1103 states have call predecessors, (1112), 1112 states have call successors, (1112) [2021-11-13 02:39:28,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-11-13 02:39:28,394 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:39:28,395 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:39:28,396 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] === [2021-11-13 02:39:28,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:39:28,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1574313908, now seen corresponding path program 1 times [2021-11-13 02:39:28,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:39:28,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [777300179] [2021-11-13 02:39:28,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:39:28,429 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:39:28,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:39:28,432 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:39:28,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 02:39:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:39:32,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 1932 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:39:32,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:33,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked. [2021-11-13 02:39:33,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:39:34,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2021-11-13 02:39:34,156 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:39:34,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [777300179] [2021-11-13 02:39:34,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [777300179] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:39:34,159 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:39:34,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 02:39:34,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917893521] [2021-11-13 02:39:34,167 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:39:34,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:39:34,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:39:34,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:39:34,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:39:34,234 INFO L87 Difference]: Start difference. First operand has 4049 states, 2766 states have (on average 1.2657266811279826) internal successors, (3501), 2805 states have internal predecessors, (3501), 1121 states have call successors, (1121), 161 states have call predecessors, (1121), 160 states have return successors, (1112), 1103 states have call predecessors, (1112), 1112 states have call successors, (1112) Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 4 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-13 02:39:36,537 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:39:56,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:39:56,690 INFO L93 Difference]: Finished difference Result 15900 states and 22795 transitions. [2021-11-13 02:39:56,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:39:56,693 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 4 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 216 [2021-11-13 02:39:56,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:39:56,864 INFO L225 Difference]: With dead ends: 15900 [2021-11-13 02:39:56,865 INFO L226 Difference]: Without dead ends: 11862 [2021-11-13 02:39:56,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:39:56,919 INFO L933 BasicCegarLoop]: 7872 mSDtfsCounter, 11206 mSDsluCounter, 14511 mSDsCounter, 0 mSdLazyCounter, 2280 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19758.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11206 SdHoareTripleChecker+Valid, 22383 SdHoareTripleChecker+Invalid, 2307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 128.58ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2280 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21275.25ms IncrementalHoareTripleChecker+Time [2021-11-13 02:39:56,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11206 Valid, 22383 Invalid, 2307 Unknown, 0 Unchecked, 128.58ms Time], IncrementalHoareTripleChecker [26 Valid, 2280 Invalid, 1 Unknown, 0 Unchecked, 21275.25ms Time] [2021-11-13 02:39:56,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11862 states. [2021-11-13 02:39:58,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11862 to 11854. [2021-11-13 02:39:58,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11854 states, 8119 states have (on average 1.2609927330952089) internal successors, (10238), 8233 states have internal predecessors, (10238), 3258 states have call successors, (3258), 476 states have call predecessors, (3258), 475 states have return successors, (3255), 3228 states have call predecessors, (3255), 3255 states have call successors, (3255) [2021-11-13 02:39:58,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11854 states to 11854 states and 16751 transitions. [2021-11-13 02:39:58,428 INFO L78 Accepts]: Start accepts. Automaton has 11854 states and 16751 transitions. Word has length 216 [2021-11-13 02:39:58,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:39:58,430 INFO L470 AbstractCegarLoop]: Abstraction has 11854 states and 16751 transitions. [2021-11-13 02:39:58,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 4 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-13 02:39:58,432 INFO L276 IsEmpty]: Start isEmpty. Operand 11854 states and 16751 transitions. [2021-11-13 02:39:58,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-13 02:39:58,448 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:39:58,449 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:39:58,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-13 02:39:58,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:39:58,662 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] === [2021-11-13 02:39:58,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:39:58,663 INFO L85 PathProgramCache]: Analyzing trace with hash 874449462, now seen corresponding path program 1 times [2021-11-13 02:39:58,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:39:58,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [865121211] [2021-11-13 02:39:58,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:39:58,667 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:39:58,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:39:58,671 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:39:58,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 02:40:03,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:40:03,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 2002 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:40:03,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:40:04,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked. [2021-11-13 02:40:04,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:40:04,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2021-11-13 02:40:04,986 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:40:04,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [865121211] [2021-11-13 02:40:04,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [865121211] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:40:04,987 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:40:04,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 02:40:04,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629933574] [2021-11-13 02:40:04,987 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:40:04,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:40:04,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:40:04,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:40:04,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:40:04,991 INFO L87 Difference]: Start difference. First operand 11854 states and 16751 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2021-11-13 02:40:07,247 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 [] [2021-11-13 02:40:31,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:40:31,088 INFO L93 Difference]: Finished difference Result 37263 states and 52527 transitions. [2021-11-13 02:40:31,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:40:31,090 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 234 [2021-11-13 02:40:31,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:40:31,361 INFO L225 Difference]: With dead ends: 37263 [2021-11-13 02:40:31,361 INFO L226 Difference]: Without dead ends: 25448 [2021-11-13 02:40:31,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 464 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:40:31,473 INFO L933 BasicCegarLoop]: 7760 mSDtfsCounter, 12991 mSDsluCounter, 8527 mSDsCounter, 0 mSdLazyCounter, 2125 mSolverCounterSat, 1914 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22538.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12991 SdHoareTripleChecker+Valid, 16287 SdHoareTripleChecker+Invalid, 4040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 102.40ms SdHoareTripleChecker+Time, 1914 IncrementalHoareTripleChecker+Valid, 2125 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24857.44ms IncrementalHoareTripleChecker+Time [2021-11-13 02:40:31,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12991 Valid, 16287 Invalid, 4040 Unknown, 0 Unchecked, 102.40ms Time], IncrementalHoareTripleChecker [1914 Valid, 2125 Invalid, 1 Unknown, 0 Unchecked, 24857.44ms Time] [2021-11-13 02:40:31,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25448 states. [2021-11-13 02:40:34,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25448 to 25430. [2021-11-13 02:40:34,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25430 states, 17438 states have (on average 1.2588026149787819) internal successors, (21951), 17673 states have internal predecessors, (21951), 6910 states have call successors, (6910), 1083 states have call predecessors, (6910), 1080 states have return successors, (6907), 6839 states have call predecessors, (6907), 6907 states have call successors, (6907) [2021-11-13 02:40:34,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25430 states to 25430 states and 35768 transitions. [2021-11-13 02:40:34,241 INFO L78 Accepts]: Start accepts. Automaton has 25430 states and 35768 transitions. Word has length 234 [2021-11-13 02:40:34,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:40:34,244 INFO L470 AbstractCegarLoop]: Abstraction has 25430 states and 35768 transitions. [2021-11-13 02:40:34,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2021-11-13 02:40:34,244 INFO L276 IsEmpty]: Start isEmpty. Operand 25430 states and 35768 transitions. [2021-11-13 02:40:34,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-11-13 02:40:34,261 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:40:34,262 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 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] [2021-11-13 02:40:34,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 02:40:34,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:40:34,481 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] === [2021-11-13 02:40:34,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:40:34,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1292582893, now seen corresponding path program 1 times [2021-11-13 02:40:34,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:40:34,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [936606203] [2021-11-13 02:40:34,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:40:34,484 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:40:34,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:40:34,485 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:40:34,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 02:40:38,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:40:38,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 1993 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:40:38,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:40:39,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 1228 trivial. 0 not checked. [2021-11-13 02:40:39,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:40:40,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1279 trivial. 0 not checked. [2021-11-13 02:40:40,188 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:40:40,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [936606203] [2021-11-13 02:40:40,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [936606203] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:40:40,188 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:40:40,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 02:40:40,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880271311] [2021-11-13 02:40:40,189 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:40:40,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:40:40,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:40:40,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:40:40,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:40:40,191 INFO L87 Difference]: Start difference. First operand 25430 states and 35768 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-13 02:40:42,446 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:40:44,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:40:44,968 INFO L93 Difference]: Finished difference Result 72223 states and 101606 transitions. [2021-11-13 02:40:44,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:40:44,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 248 [2021-11-13 02:40:44,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:40:45,305 INFO L225 Difference]: With dead ends: 72223 [2021-11-13 02:40:45,306 INFO L226 Difference]: Without dead ends: 46832 [2021-11-13 02:40:45,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:40:45,466 INFO L933 BasicCegarLoop]: 6764 mSDtfsCounter, 5501 mSDsluCounter, 5639 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2566.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5501 SdHoareTripleChecker+Valid, 12403 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.76ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2647.37ms IncrementalHoareTripleChecker+Time [2021-11-13 02:40:45,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5501 Valid, 12403 Invalid, 62 Unknown, 0 Unchecked, 29.76ms Time], IncrementalHoareTripleChecker [13 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 2647.37ms Time] [2021-11-13 02:40:45,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46832 states. [2021-11-13 02:40:49,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46832 to 46817. [2021-11-13 02:40:49,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46817 states, 32110 states have (on average 1.2575521644347556) internal successors, (40380), 32556 states have internal predecessors, (40380), 12717 states have call successors, (12717), 1993 states have call predecessors, (12717), 1988 states have return successors, (12714), 12577 states have call predecessors, (12714), 12714 states have call successors, (12714) [2021-11-13 02:40:49,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46817 states to 46817 states and 65811 transitions. [2021-11-13 02:40:49,765 INFO L78 Accepts]: Start accepts. Automaton has 46817 states and 65811 transitions. Word has length 248 [2021-11-13 02:40:49,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:40:49,766 INFO L470 AbstractCegarLoop]: Abstraction has 46817 states and 65811 transitions. [2021-11-13 02:40:49,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-13 02:40:49,767 INFO L276 IsEmpty]: Start isEmpty. Operand 46817 states and 65811 transitions. [2021-11-13 02:40:49,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-11-13 02:40:49,789 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:40:49,790 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 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] [2021-11-13 02:40:49,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 02:40:50,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:40:50,014 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] === [2021-11-13 02:40:50,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:40:50,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1553606092, now seen corresponding path program 1 times [2021-11-13 02:40:50,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:40:50,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1963286961] [2021-11-13 02:40:50,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:40:50,019 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:40:50,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:40:50,022 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:40:50,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 02:40:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:40:54,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 2059 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:40:54,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:40:58,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1482 trivial. 0 not checked. [2021-11-13 02:40:58,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:40:59,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1482 trivial. 0 not checked. [2021-11-13 02:40:59,991 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:40:59,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1963286961] [2021-11-13 02:40:59,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1963286961] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:40:59,992 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:40:59,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-13 02:40:59,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863605114] [2021-11-13 02:40:59,993 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:40:59,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:40:59,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:40:59,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:40:59,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:40:59,995 INFO L87 Difference]: Start difference. First operand 46817 states and 65811 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-13 02:41:02,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:02,308 INFO L93 Difference]: Finished difference Result 46817 states and 65811 transitions. [2021-11-13 02:41:02,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:41:02,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 274 [2021-11-13 02:41:02,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:02,758 INFO L225 Difference]: With dead ends: 46817 [2021-11-13 02:41:02,759 INFO L226 Difference]: Without dead ends: 46746 [2021-11-13 02:41:02,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 543 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:41:02,804 INFO L933 BasicCegarLoop]: 5680 mSDtfsCounter, 5568 mSDsluCounter, 5680 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 336.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5568 SdHoareTripleChecker+Valid, 11360 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 33.71ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 400.17ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:02,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5568 Valid, 11360 Invalid, 4 Unknown, 0 Unchecked, 33.71ms Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 400.17ms Time] [2021-11-13 02:41:02,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46746 states. [2021-11-13 02:41:06,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46746 to 46692. [2021-11-13 02:41:06,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46692 states, 32027 states have (on average 1.2563462078870953) internal successors, (40237), 32455 states have internal predecessors, (40237), 12678 states have call successors, (12678), 1986 states have call predecessors, (12678), 1986 states have return successors, (12678), 12560 states have call predecessors, (12678), 12678 states have call successors, (12678) [2021-11-13 02:41:06,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46692 states to 46692 states and 65593 transitions. [2021-11-13 02:41:06,728 INFO L78 Accepts]: Start accepts. Automaton has 46692 states and 65593 transitions. Word has length 274 [2021-11-13 02:41:06,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:06,730 INFO L470 AbstractCegarLoop]: Abstraction has 46692 states and 65593 transitions. [2021-11-13 02:41:06,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-13 02:41:06,731 INFO L276 IsEmpty]: Start isEmpty. Operand 46692 states and 65593 transitions. [2021-11-13 02:41:06,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2021-11-13 02:41:06,828 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:06,829 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 17, 17, 17, 17, 17, 17, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:06,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:07,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:41:07,043 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] === [2021-11-13 02:41:07,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:07,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1359262132, now seen corresponding path program 1 times [2021-11-13 02:41:07,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:41:07,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147737000] [2021-11-13 02:41:07,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:07,047 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:41:07,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:41:07,048 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:41:07,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 02:41:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:11,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 2174 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:41:11,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:12,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1629 backedges. 282 proven. 0 refuted. 0 times theorem prover too weak. 1347 trivial. 0 not checked. [2021-11-13 02:41:12,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:13,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1629 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1615 trivial. 0 not checked. [2021-11-13 02:41:13,366 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:41:13,367 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1147737000] [2021-11-13 02:41:13,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1147737000] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:41:13,367 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:41:13,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 02:41:13,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278914032] [2021-11-13 02:41:13,368 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:13,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:41:13,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:41:13,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:41:13,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:41:13,370 INFO L87 Difference]: Start difference. First operand 46692 states and 65593 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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) [2021-11-13 02:41:15,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:41:35,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:35,473 INFO L93 Difference]: Finished difference Result 131282 states and 184364 transitions. [2021-11-13 02:41:35,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:41:35,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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 318 [2021-11-13 02:41:35,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:36,081 INFO L225 Difference]: With dead ends: 131282 [2021-11-13 02:41:36,082 INFO L226 Difference]: Without dead ends: 88014 [2021-11-13 02:41:36,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 634 GetRequests, 632 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:41:36,416 INFO L933 BasicCegarLoop]: 11375 mSDtfsCounter, 10448 mSDsluCounter, 9358 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 34 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17175.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10448 SdHoareTripleChecker+Valid, 20733 SdHoareTripleChecker+Invalid, 2310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 54.64ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18616.06ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:36,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10448 Valid, 20733 Invalid, 2310 Unknown, 0 Unchecked, 54.64ms Time], IncrementalHoareTripleChecker [34 Valid, 2275 Invalid, 1 Unknown, 0 Unchecked, 18616.06ms Time] [2021-11-13 02:41:36,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88014 states. [2021-11-13 02:41:41,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88014 to 88006. [2021-11-13 02:41:41,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88006 states, 60345 states have (on average 1.2552655563841246) internal successors, (75749), 61145 states have internal predecessors, (75749), 23874 states have call successors, (23874), 3786 states have call predecessors, (23874), 3786 states have return successors, (23874), 23648 states have call predecessors, (23874), 23874 states have call successors, (23874) [2021-11-13 02:41:42,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88006 states to 88006 states and 123497 transitions. [2021-11-13 02:41:42,326 INFO L78 Accepts]: Start accepts. Automaton has 88006 states and 123497 transitions. Word has length 318 [2021-11-13 02:41:42,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:42,327 INFO L470 AbstractCegarLoop]: Abstraction has 88006 states and 123497 transitions. [2021-11-13 02:41:42,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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) [2021-11-13 02:41:42,328 INFO L276 IsEmpty]: Start isEmpty. Operand 88006 states and 123497 transitions. [2021-11-13 02:41:42,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2021-11-13 02:41:42,725 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:42,726 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 17, 17, 17, 17, 17, 17, 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] [2021-11-13 02:41:42,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:42,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:41:42,942 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] === [2021-11-13 02:41:42,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:42,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1991695558, now seen corresponding path program 1 times [2021-11-13 02:41:42,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:41:42,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1230863262] [2021-11-13 02:41:42,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:42,946 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:41:42,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:41:42,950 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:41:42,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 02:41:46,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:46,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 2150 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:41:46,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:47,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1586 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 1410 trivial. 0 not checked. [2021-11-13 02:41:47,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:48,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1586 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2021-11-13 02:41:48,617 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:41:48,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1230863262] [2021-11-13 02:41:48,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1230863262] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:41:48,618 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:41:48,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 02:41:48,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464501897] [2021-11-13 02:41:48,618 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:48,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:41:48,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:41:48,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:41:48,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:41:48,621 INFO L87 Difference]: Start difference. First operand 88006 states and 123497 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 4 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-13 02:41:50,870 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 [] [2021-11-13 02:42:14,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:42:14,073 INFO L93 Difference]: Finished difference Result 214711 states and 301367 transitions. [2021-11-13 02:42:14,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:42:14,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 4 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) Word has length 328 [2021-11-13 02:42:14,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:42:15,086 INFO L225 Difference]: With dead ends: 214711 [2021-11-13 02:42:15,087 INFO L226 Difference]: Without dead ends: 126634 [2021-11-13 02:42:15,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 652 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:42:15,375 INFO L933 BasicCegarLoop]: 11695 mSDtfsCounter, 11549 mSDsluCounter, 8948 mSDsCounter, 0 mSdLazyCounter, 2253 mSolverCounterSat, 1226 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18285.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11549 SdHoareTripleChecker+Valid, 20643 SdHoareTripleChecker+Invalid, 3480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 58.24ms SdHoareTripleChecker+Time, 1226 IncrementalHoareTripleChecker+Valid, 2253 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20046.25ms IncrementalHoareTripleChecker+Time [2021-11-13 02:42:15,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11549 Valid, 20643 Invalid, 3480 Unknown, 0 Unchecked, 58.24ms Time], IncrementalHoareTripleChecker [1226 Valid, 2253 Invalid, 1 Unknown, 0 Unchecked, 20046.25ms Time] [2021-11-13 02:42:15,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126634 states. [2021-11-13 02:42:23,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126634 to 126630. [2021-11-13 02:42:23,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126630 states, 86842 states have (on average 1.2555790976716334) internal successors, (109037), 87986 states have internal predecessors, (109037), 34344 states have call successors, (34344), 5443 states have call predecessors, (34344), 5443 states have return successors, (34344), 34028 states have call predecessors, (34344), 34344 states have call successors, (34344) [2021-11-13 02:42:23,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126630 states to 126630 states and 177725 transitions. [2021-11-13 02:42:23,914 INFO L78 Accepts]: Start accepts. Automaton has 126630 states and 177725 transitions. Word has length 328 [2021-11-13 02:42:23,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:42:23,915 INFO L470 AbstractCegarLoop]: Abstraction has 126630 states and 177725 transitions. [2021-11-13 02:42:23,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 4 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-13 02:42:23,915 INFO L276 IsEmpty]: Start isEmpty. Operand 126630 states and 177725 transitions. [2021-11-13 02:42:24,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2021-11-13 02:42:24,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:42:24,003 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 17, 17, 17, 17, 17, 17, 7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-13 02:42:24,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 02:42:24,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:42:24,230 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:42:24,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:42:24,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1181806592, now seen corresponding path program 1 times [2021-11-13 02:42:24,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:42:24,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977307367] [2021-11-13 02:42:24,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:42:24,233 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:42:24,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:42:24,234 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:42:24,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 02:42:28,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:42:28,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 2188 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-13 02:42:28,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:42:30,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 405 proven. 3 refuted. 0 times theorem prover too weak. 1363 trivial. 0 not checked. [2021-11-13 02:42:30,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:42:33,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 48 proven. 24 refuted. 0 times theorem prover too weak. 1699 trivial. 0 not checked. [2021-11-13 02:42:33,881 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:42:33,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977307367] [2021-11-13 02:42:33,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [977307367] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:42:33,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [395670738] [2021-11-13 02:42:33,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:42:33,882 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:42:33,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:42:33,882 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:42:33,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc209ba8-4a16-49ce-867a-56ec6cfd12fc/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-13 02:42:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:42:35,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 2188 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:42:35,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:42:36,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked. [2021-11-13 02:42:36,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:42:37,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1760 trivial. 0 not checked. [2021-11-13 02:42:37,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [395670738] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:42:37,839 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 02:42:37,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [17, 17] total 23 [2021-11-13 02:42:37,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436825863] [2021-11-13 02:42:37,840 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:42:37,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:42:37,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:42:37,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:42:37,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-11-13 02:42:37,841 INFO L87 Difference]: Start difference. First operand 126630 states and 177725 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-13 02:42:40,070 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:42:48,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:42:48,434 INFO L93 Difference]: Finished difference Result 312397 states and 438566 transitions. [2021-11-13 02:42:48,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:42:48,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 354 [2021-11-13 02:42:48,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:42:49,721 INFO L225 Difference]: With dead ends: 312397 [2021-11-13 02:42:49,721 INFO L226 Difference]: Without dead ends: 189191 [2021-11-13 02:42:50,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1412 GetRequests, 1391 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-11-13 02:42:50,083 INFO L933 BasicCegarLoop]: 11134 mSDtfsCounter, 5470 mSDsluCounter, 5606 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2473.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5470 SdHoareTripleChecker+Valid, 16740 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.77ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2546.59ms IncrementalHoareTripleChecker+Time [2021-11-13 02:42:50,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5470 Valid, 16740 Invalid, 60 Unknown, 0 Unchecked, 23.77ms Time], IncrementalHoareTripleChecker [9 Valid, 50 Invalid, 1 Unknown, 0 Unchecked, 2546.59ms Time] [2021-11-13 02:42:50,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189191 states.