./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.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_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/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_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/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_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/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 3d612e3d3aaa54cbaaae78896c02f6ca9c3968df93584b0bde88897a60cfa04a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:26:23,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:26:23,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:26:23,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:26:23,483 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:26:23,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:26:23,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:26:23,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:26:23,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:26:23,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:26:23,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:26:23,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:26:23,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:26:23,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:26:23,524 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:26:23,526 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:26:23,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:26:23,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:26:23,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:26:23,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:26:23,537 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:26:23,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:26:23,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:26:23,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:26:23,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:26:23,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:26:23,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:26:23,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:26:23,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:26:23,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:26:23,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:26:23,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:26:23,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:26:23,564 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:26:23,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:26:23,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:26:23,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:26:23,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:26:23,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:26:23,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:26:23,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:26:23,571 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-13 02:26:23,625 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:26:23,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:26:23,628 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:26:23,628 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:26:23,628 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:26:23,628 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:26:23,629 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:26:23,629 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 02:26:23,633 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:26:23,633 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:26:23,635 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 02:26:23,635 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 02:26:23,635 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:26:23,636 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 02:26:23,636 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 02:26:23,636 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 02:26:23,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:26:23,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:26:23,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:26:23,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:26:23,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:26:23,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:26:23,639 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:26:23,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:26:23,639 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:26:23,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:26:23,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:26:23,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:26:23,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:26:23,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:26:23,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:26:23,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:26:23,644 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 02:26:23,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 02:26:23,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:26:23,645 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:26:23,645 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:26:23,645 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_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d612e3d3aaa54cbaaae78896c02f6ca9c3968df93584b0bde88897a60cfa04a [2021-11-13 02:26:23,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:26:24,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:26:24,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:26:24,032 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:26:24,034 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:26:24,036 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i [2021-11-13 02:26:24,130 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/data/7acaf5737/6d3147df277f4de7b950a4ae93e31e2f/FLAG89c86750d [2021-11-13 02:26:25,329 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:26:25,330 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i [2021-11-13 02:26:25,401 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/data/7acaf5737/6d3147df277f4de7b950a4ae93e31e2f/FLAG89c86750d [2021-11-13 02:26:25,532 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/data/7acaf5737/6d3147df277f4de7b950a4ae93e31e2f [2021-11-13 02:26:25,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:26:25,538 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:26:25,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:26:25,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:26:25,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:26:25,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:26:25" (1/1) ... [2021-11-13 02:26:25,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14012870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:25, skipping insertion in model container [2021-11-13 02:26:25,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:26:25" (1/1) ... [2021-11-13 02:26:25,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:26:25,787 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:26:28,154 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:26:28,155 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 02:26:29,319 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_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319618,319631] [2021-11-13 02:26:29,323 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_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319787,319800] [2021-11-13 02:26:29,324 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_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319954,319967] [2021-11-13 02:26:29,324 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_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[320122,320135] [2021-11-13 02:26:29,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:26:29,445 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 02:26:29,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@142f62c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:29, skipping insertion in model container [2021-11-13 02:26:29,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:26:29,447 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 02:26:29,450 INFO L158 Benchmark]: Toolchain (without parser) took 3911.00ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 51.9MB in the beginning and 69.1MB in the end (delta: -17.2MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. [2021-11-13 02:26:29,452 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 98.6MB. Free memory was 52.4MB in the beginning and 52.3MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:26:29,454 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3874.09ms. Allocated memory is still 119.5MB. Free memory was 92.7MB in the beginning and 69.1MB in the end (delta: 23.6MB). Peak memory consumption was 70.8MB. Max. memory is 16.1GB. [2021-11-13 02:26:29,457 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 98.6MB. Free memory was 52.4MB in the beginning and 52.3MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3874.09ms. Allocated memory is still 119.5MB. Free memory was 92.7MB in the beginning and 69.1MB in the end (delta: 23.6MB). Peak memory consumption was 70.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6283]: 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_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/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_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/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_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/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 3d612e3d3aaa54cbaaae78896c02f6ca9c3968df93584b0bde88897a60cfa04a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:26:32,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:26:32,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:26:32,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:26:32,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:26:32,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:26:32,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:26:32,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:26:32,389 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:26:32,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:26:32,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:26:32,402 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:26:32,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:26:32,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:26:32,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:26:32,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:26:32,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:26:32,416 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:26:32,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:26:32,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:26:32,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:26:32,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:26:32,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:26:32,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:26:32,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:26:32,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:26:32,449 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:26:32,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:26:32,453 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:26:32,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:26:32,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:26:32,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:26:32,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:26:32,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:26:32,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:26:32,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:26:32,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:26:32,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:26:32,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:26:32,465 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:26:32,466 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:26:32,472 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-13 02:26:32,520 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:26:32,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:26:32,522 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:26:32,522 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:26:32,523 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:26:32,523 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:26:32,523 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:26:32,524 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:26:32,524 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:26:32,524 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:26:32,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:26:32,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:26:32,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:26:32,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:26:32,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:26:32,529 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:26:32,529 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 02:26:32,529 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 02:26:32,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:26:32,530 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:26:32,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:26:32,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:26:32,531 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 02:26:32,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:26:32,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:26:32,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:26:32,532 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:26:32,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:26:32,533 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 02:26:32,533 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 02:26:32,534 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:26:32,534 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:26:32,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:26:32,535 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_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d612e3d3aaa54cbaaae78896c02f6ca9c3968df93584b0bde88897a60cfa04a [2021-11-13 02:26:33,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:26:33,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:26:33,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:26:33,067 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:26:33,068 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:26:33,070 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i [2021-11-13 02:26:33,162 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/data/76dc5bc04/0d3521b8fcbe460fa0d763e464913daf/FLAG2d2bbbe97 [2021-11-13 02:26:34,406 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:26:34,408 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i [2021-11-13 02:26:34,464 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/data/76dc5bc04/0d3521b8fcbe460fa0d763e464913daf/FLAG2d2bbbe97 [2021-11-13 02:26:34,630 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/data/76dc5bc04/0d3521b8fcbe460fa0d763e464913daf [2021-11-13 02:26:34,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:26:34,658 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:26:34,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:26:34,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:26:34,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:26:34,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:26:34" (1/1) ... [2021-11-13 02:26:34,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d22b3f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:34, skipping insertion in model container [2021-11-13 02:26:34,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:26:34" (1/1) ... [2021-11-13 02:26:34,677 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:26:34,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:26:38,287 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_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319618,319631] [2021-11-13 02:26:38,291 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_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319787,319800] [2021-11-13 02:26:38,292 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_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319954,319967] [2021-11-13 02:26:38,292 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_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[320122,320135] [2021-11-13 02:26:38,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:26:38,404 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 02:26:38,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:26:39,073 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_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319618,319631] [2021-11-13 02:26:39,074 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_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319787,319800] [2021-11-13 02:26:39,088 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_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319954,319967] [2021-11-13 02:26:39,089 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_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[320122,320135] [2021-11-13 02:26:39,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:26:39,185 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:26:39,742 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_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319618,319631] [2021-11-13 02:26:39,743 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_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319787,319800] [2021-11-13 02:26:39,743 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_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319954,319967] [2021-11-13 02:26:39,744 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_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[320122,320135] [2021-11-13 02:26:39,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:26:40,114 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:26:40,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:40 WrapperNode [2021-11-13 02:26:40,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:26:40,121 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:26:40,122 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:26:40,122 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:26:40,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:40" (1/1) ... [2021-11-13 02:26:40,300 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:40" (1/1) ... [2021-11-13 02:26:40,545 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:26:40,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:26:40,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:26:40,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:26:40,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:40" (1/1) ... [2021-11-13 02:26:40,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:40" (1/1) ... [2021-11-13 02:26:40,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:40" (1/1) ... [2021-11-13 02:26:40,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:40" (1/1) ... [2021-11-13 02:26:40,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:40" (1/1) ... [2021-11-13 02:26:40,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:40" (1/1) ... [2021-11-13 02:26:40,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:40" (1/1) ... [2021-11-13 02:26:40,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:26:40,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:26:40,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:26:40,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:26:40,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:40" (1/1) ... [2021-11-13 02:26:40,886 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:26:40,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:26:40,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:26:40,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:26:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure getlinkstatus [2021-11-13 02:26:40,989 INFO L138 BoogieDeclarations]: Found implementation of procedure getlinkstatus [2021-11-13 02:26:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-11-13 02:26:40,989 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-11-13 02:26:40,990 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-13 02:26:40,990 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-13 02:26:40,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 02:26:40,990 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 02:26:40,991 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-13 02:26:40,991 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-13 02:26:40,991 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-13 02:26:40,991 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-13 02:26:40,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 02:26:40,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 02:26:40,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-13 02:26:40,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-13 02:26:40,993 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-13 02:26:40,993 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-13 02:26:40,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_79 [2021-11-13 02:26:40,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_79 [2021-11-13 02:26:40,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_67 [2021-11-13 02:26:40,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_67 [2021-11-13 02:26:40,994 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-13 02:26:40,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-13 02:26:40,994 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-13 02:26:40,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-13 02:26:40,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-13 02:26:40,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-13 02:26:40,995 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-13 02:26:40,996 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-13 02:26:40,996 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-13 02:26:40,996 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-13 02:26:40,996 INFO L130 BoogieDeclarations]: Found specification of procedure fealnx_tx_timeout [2021-11-13 02:26:40,996 INFO L138 BoogieDeclarations]: Found implementation of procedure fealnx_tx_timeout [2021-11-13 02:26:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-13 02:26:40,997 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-13 02:26:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-13 02:26:40,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-13 02:26:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-13 02:26:40,998 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-13 02:26:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2021-11-13 02:26:40,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2021-11-13 02:26:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure getlinktype [2021-11-13 02:26:40,999 INFO L138 BoogieDeclarations]: Found implementation of procedure getlinktype [2021-11-13 02:26:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-13 02:26:40,999 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-13 02:26:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 02:26:41,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 02:26:41,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 02:26:41,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-13 02:26:41,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-13 02:26:41,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-13 02:26:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-13 02:26:41,001 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-13 02:26:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure reset_rx_descriptors [2021-11-13 02:26:41,002 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_rx_descriptors [2021-11-13 02:26:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-13 02:26:41,002 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-13 02:26:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure fealnx_remove_one [2021-11-13 02:26:41,003 INFO L138 BoogieDeclarations]: Found implementation of procedure fealnx_remove_one [2021-11-13 02:26:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-13 02:26:41,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-13 02:26:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-11-13 02:26:41,003 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-11-13 02:26:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-13 02:26:41,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-13 02:26:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-13 02:26:41,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-13 02:26:41,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-13 02:26:41,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-13 02:26:41,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-13 02:26:41,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-13 02:26:41,006 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-13 02:26:41,006 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-13 02:26:41,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-13 02:26:41,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-13 02:26:41,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 02:26:41,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-13 02:26:41,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-13 02:26:41,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-13 02:26:41,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-13 02:26:41,008 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2021-11-13 02:26:41,008 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2021-11-13 02:26:41,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 02:26:41,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 02:26:41,008 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-13 02:26:41,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-13 02:26:41,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 02:26:41,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-13 02:26:41,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-13 02:26:41,010 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 02:26:41,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 02:26:41,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-13 02:26:41,010 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-13 02:26:41,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-13 02:26:41,011 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-13 02:26:41,011 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-13 02:26:41,011 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-13 02:26:41,011 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-13 02:26:41,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-13 02:26:41,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-13 02:26:41,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-13 02:26:41,012 INFO L130 BoogieDeclarations]: Found specification of procedure stop_nic_rx [2021-11-13 02:26:41,012 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_nic_rx [2021-11-13 02:26:41,013 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-13 02:26:41,013 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-13 02:26:41,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:26:41,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:26:41,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 02:26:41,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-13 02:26:41,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 02:26:41,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 02:26:41,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-13 02:26:41,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 02:26:41,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 02:26:41,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 02:26:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2021-11-13 02:26:41,016 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2021-11-13 02:26:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-13 02:26:41,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-13 02:26:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-13 02:26:41,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-13 02:26:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2021-11-13 02:26:41,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2021-11-13 02:26:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure enable_rxtx [2021-11-13 02:26:41,018 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_rxtx [2021-11-13 02:26:41,018 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-13 02:26:41,018 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-13 02:26:41,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 02:26:41,018 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 02:26:41,019 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-13 02:26:41,019 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-13 02:26:41,019 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-13 02:26:41,019 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-13 02:26:41,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_78 [2021-11-13 02:26:41,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_78 [2021-11-13 02:26:41,020 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-13 02:26:41,020 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-13 02:26:41,020 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-13 02:26:41,020 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-13 02:26:41,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:26:41,021 INFO L130 BoogieDeclarations]: Found specification of procedure reset_and_disable_rxtx [2021-11-13 02:26:41,021 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_and_disable_rxtx [2021-11-13 02:26:41,021 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-13 02:26:41,021 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-13 02:26:41,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 02:26:41,022 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-13 02:26:41,022 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-13 02:26:41,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-13 02:26:41,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 02:26:41,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-13 02:26:41,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 02:26:41,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 02:26:41,023 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-13 02:26:41,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-13 02:26:41,024 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 02:26:41,024 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 02:26:41,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2021-11-13 02:26:41,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2021-11-13 02:26:41,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-13 02:26:41,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-13 02:26:41,025 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2021-11-13 02:26:41,025 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2021-11-13 02:26:41,026 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-13 02:26:41,026 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-13 02:26:41,026 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-13 02:26:41,026 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-13 02:26:41,026 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-13 02:26:41,027 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-13 02:26:41,027 INFO L130 BoogieDeclarations]: Found specification of procedure stop_nic_rxtx [2021-11-13 02:26:41,027 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_nic_rxtx [2021-11-13 02:26:41,027 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-13 02:26:41,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-13 02:26:41,028 INFO L130 BoogieDeclarations]: Found specification of procedure m80x_send_cmd_to_phy [2021-11-13 02:26:41,028 INFO L138 BoogieDeclarations]: Found implementation of procedure m80x_send_cmd_to_phy [2021-11-13 02:26:41,028 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffers [2021-11-13 02:26:41,028 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffers [2021-11-13 02:26:41,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-13 02:26:41,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-13 02:26:41,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-13 02:26:41,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-13 02:26:41,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 02:26:41,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 02:26:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-13 02:26:41,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-13 02:26:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-13 02:26:41,031 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-13 02:26:41,031 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-13 02:26:41,031 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-13 02:26:41,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-13 02:26:41,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-13 02:26:41,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_fealnx_exit_14_2 [2021-11-13 02:26:41,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_fealnx_exit_14_2 [2021-11-13 02:26:58,160 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 02:27:28,457 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-13 02:27:28,553 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:27:28,553 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 02:27:28,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:27:28 BoogieIcfgContainer [2021-11-13 02:27:28,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:27:28,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:27:28,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:27:28,562 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:27:28,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:26:34" (1/3) ... [2021-11-13 02:27:28,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1800fc55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:27:28, skipping insertion in model container [2021-11-13 02:27:28,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:40" (2/3) ... [2021-11-13 02:27:28,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1800fc55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:27:28, skipping insertion in model container [2021-11-13 02:27:28,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:27:28" (3/3) ... [2021-11-13 02:27:28,565 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i [2021-11-13 02:27:28,571 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:27:28,571 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-13 02:27:28,637 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:27:28,644 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 02:27:28,644 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-13 02:27:28,709 INFO L276 IsEmpty]: Start isEmpty. Operand has 1564 states, 1091 states have (on average 1.2768102658111824) internal successors, (1393), 1112 states have internal predecessors, (1393), 389 states have call successors, (389), 82 states have call predecessors, (389), 81 states have return successors, (383), 380 states have call predecessors, (383), 383 states have call successors, (383) [2021-11-13 02:27:28,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-13 02:27:28,732 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:27:28,733 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:27:28,734 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:27:28,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:27:28,741 INFO L85 PathProgramCache]: Analyzing trace with hash -337215205, now seen corresponding path program 1 times [2021-11-13 02:27:28,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:27:28,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [286341620] [2021-11-13 02:27:28,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:27:28,765 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:27:28,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:27:28,780 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:27:28,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 02:27:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:27:30,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:27:30,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:27:31,060 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-13 02:27:31,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:27:31,504 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-13 02:27:31,505 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:27:31,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [286341620] [2021-11-13 02:27:31,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [286341620] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:27:31,506 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:27:31,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 02:27:31,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092674904] [2021-11-13 02:27:31,509 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:27:31,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:27:31,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:27:31,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:27:31,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:27:31,553 INFO L87 Difference]: Start difference. First operand has 1564 states, 1091 states have (on average 1.2768102658111824) internal successors, (1393), 1112 states have internal predecessors, (1393), 389 states have call successors, (389), 82 states have call predecessors, (389), 81 states have return successors, (383), 380 states have call predecessors, (383), 383 states have call successors, (383) Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-13 02:27:33,790 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 02:27:39,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:27:39,992 INFO L93 Difference]: Finished difference Result 6028 states and 8548 transitions. [2021-11-13 02:27:39,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:27:39,994 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 127 [2021-11-13 02:27:39,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:27:40,078 INFO L225 Difference]: With dead ends: 6028 [2021-11-13 02:27:40,078 INFO L226 Difference]: Without dead ends: 4470 [2021-11-13 02:27:40,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 250 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 02:27:40,108 INFO L933 BasicCegarLoop]: 2878 mSDtfsCounter, 5419 mSDsluCounter, 3372 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 713 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6960.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5419 SdHoareTripleChecker+Valid, 6250 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 67.51ms SdHoareTripleChecker+Time, 713 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7839.95ms IncrementalHoareTripleChecker+Time [2021-11-13 02:27:40,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5419 Valid, 6250 Invalid, 1510 Unknown, 0 Unchecked, 67.51ms Time], IncrementalHoareTripleChecker [713 Valid, 796 Invalid, 1 Unknown, 0 Unchecked, 7839.95ms Time] [2021-11-13 02:27:40,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4470 states. [2021-11-13 02:27:40,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4470 to 4443. [2021-11-13 02:27:40,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4443 states, 3139 states have (on average 1.2717425931825421) internal successors, (3992), 3198 states have internal predecessors, (3992), 1065 states have call successors, (1065), 237 states have call predecessors, (1065), 236 states have return successors, (1061), 1052 states have call predecessors, (1061), 1061 states have call successors, (1061) [2021-11-13 02:27:40,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4443 states to 4443 states and 6118 transitions. [2021-11-13 02:27:40,606 INFO L78 Accepts]: Start accepts. Automaton has 4443 states and 6118 transitions. Word has length 127 [2021-11-13 02:27:40,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:27:40,609 INFO L470 AbstractCegarLoop]: Abstraction has 4443 states and 6118 transitions. [2021-11-13 02:27:40,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-13 02:27:40,610 INFO L276 IsEmpty]: Start isEmpty. Operand 4443 states and 6118 transitions. [2021-11-13 02:27:40,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-13 02:27:40,624 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:27:40,625 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:27:40,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 02:27:40,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:27:40,848 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:27:40,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:27:40,849 INFO L85 PathProgramCache]: Analyzing trace with hash -302978910, now seen corresponding path program 1 times [2021-11-13 02:27:40,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:27:40,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [897721707] [2021-11-13 02:27:40,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:27:40,852 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:27:40,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:27:40,858 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:27:40,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 02:27:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:27:42,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 1177 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:27:42,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:27:42,921 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-13 02:27:42,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:27:43,320 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-13 02:27:43,321 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:27:43,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [897721707] [2021-11-13 02:27:43,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [897721707] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:27:43,322 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:27:43,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 02:27:43,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016035329] [2021-11-13 02:27:43,323 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:27:43,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:27:43,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:27:43,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:27:43,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:27:43,326 INFO L87 Difference]: Start difference. First operand 4443 states and 6118 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-13 02:27:45,524 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:27:49,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:27:49,563 INFO L93 Difference]: Finished difference Result 16221 states and 22279 transitions. [2021-11-13 02:27:49,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:27:49,564 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 129 [2021-11-13 02:27:49,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:27:49,691 INFO L225 Difference]: With dead ends: 16221 [2021-11-13 02:27:49,692 INFO L226 Difference]: Without dead ends: 11801 [2021-11-13 02:27:49,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 254 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 02:27:49,726 INFO L933 BasicCegarLoop]: 2850 mSDtfsCounter, 3563 mSDsluCounter, 4604 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5063.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3563 SdHoareTripleChecker+Valid, 7454 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 39.16ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5470.00ms IncrementalHoareTripleChecker+Time [2021-11-13 02:27:49,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3563 Valid, 7454 Invalid, 693 Unknown, 0 Unchecked, 39.16ms Time], IncrementalHoareTripleChecker [16 Valid, 676 Invalid, 1 Unknown, 0 Unchecked, 5470.00ms Time] [2021-11-13 02:27:49,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11801 states. [2021-11-13 02:27:50,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11801 to 11737. [2021-11-13 02:27:50,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11737 states, 8255 states have (on average 1.2646880678376742) internal successors, (10440), 8416 states have internal predecessors, (10440), 2803 states have call successors, (2803), 683 states have call predecessors, (2803), 676 states have return successors, (2853), 2742 states have call predecessors, (2853), 2799 states have call successors, (2853) [2021-11-13 02:27:50,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11737 states to 11737 states and 16096 transitions. [2021-11-13 02:27:50,493 INFO L78 Accepts]: Start accepts. Automaton has 11737 states and 16096 transitions. Word has length 129 [2021-11-13 02:27:50,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:27:50,495 INFO L470 AbstractCegarLoop]: Abstraction has 11737 states and 16096 transitions. [2021-11-13 02:27:50,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-13 02:27:50,496 INFO L276 IsEmpty]: Start isEmpty. Operand 11737 states and 16096 transitions. [2021-11-13 02:27:50,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-13 02:27:50,500 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:27:50,501 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:27:50,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 02:27:50,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:27:50,716 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:27:50,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:27:50,717 INFO L85 PathProgramCache]: Analyzing trace with hash 730374888, now seen corresponding path program 1 times [2021-11-13 02:27:50,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:27:50,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1736372341] [2021-11-13 02:27:50,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:27:50,719 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:27:50,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:27:50,722 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:27:50,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 02:27:52,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:27:52,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 1177 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:27:52,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:27:52,717 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-13 02:27:52,717 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:27:53,053 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-13 02:27:53,053 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:27:53,053 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1736372341] [2021-11-13 02:27:53,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1736372341] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:27:53,054 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:27:53,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 02:27:53,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558843992] [2021-11-13 02:27:53,054 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:27:53,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:27:53,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:27:53,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:27:53,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:27:53,056 INFO L87 Difference]: Start difference. First operand 11737 states and 16096 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-13 02:27:55,180 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 02:28:00,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:00,654 INFO L93 Difference]: Finished difference Result 45451 states and 62299 transitions. [2021-11-13 02:28:00,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:28:00,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 132 [2021-11-13 02:28:00,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:00,898 INFO L225 Difference]: With dead ends: 45451 [2021-11-13 02:28:00,898 INFO L226 Difference]: Without dead ends: 33737 [2021-11-13 02:28:00,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 260 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 02:28:00,970 INFO L933 BasicCegarLoop]: 3013 mSDtfsCounter, 5300 mSDsluCounter, 3312 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 716 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5884.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5300 SdHoareTripleChecker+Valid, 6325 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.92ms SdHoareTripleChecker+Time, 716 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6561.73ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:00,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5300 Valid, 6325 Invalid, 1418 Unknown, 0 Unchecked, 30.92ms Time], IncrementalHoareTripleChecker [716 Valid, 701 Invalid, 1 Unknown, 0 Unchecked, 6561.73ms Time] [2021-11-13 02:28:01,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33737 states. [2021-11-13 02:28:03,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33737 to 33649. [2021-11-13 02:28:03,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33649 states, 23801 states have (on average 1.267509768497122) internal successors, (30168), 24304 states have internal predecessors, (30168), 7873 states have call successors, (7873), 2015 states have call predecessors, (7873), 1972 states have return successors, (8061), 7638 states have call predecessors, (8061), 7869 states have call successors, (8061) [2021-11-13 02:28:03,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33649 states to 33649 states and 46102 transitions. [2021-11-13 02:28:03,372 INFO L78 Accepts]: Start accepts. Automaton has 33649 states and 46102 transitions. Word has length 132 [2021-11-13 02:28:03,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:03,373 INFO L470 AbstractCegarLoop]: Abstraction has 33649 states and 46102 transitions. [2021-11-13 02:28:03,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-13 02:28:03,376 INFO L276 IsEmpty]: Start isEmpty. Operand 33649 states and 46102 transitions. [2021-11-13 02:28:03,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-13 02:28:03,379 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:03,379 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:03,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 02:28:03,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:28:03,600 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:28:03,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:03,601 INFO L85 PathProgramCache]: Analyzing trace with hash -712148781, now seen corresponding path program 1 times [2021-11-13 02:28:03,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:28:03,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179564949] [2021-11-13 02:28:03,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:03,603 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:28:03,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:28:03,604 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:28:03,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 02:28:04,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:04,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 1177 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:28:04,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:05,259 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-13 02:28:05,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:28:05,594 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-13 02:28:05,594 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:28:05,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179564949] [2021-11-13 02:28:05,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1179564949] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:05,595 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:05,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 02:28:05,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416454009] [2021-11-13 02:28:05,595 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:05,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:28:05,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:28:05,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:28:05,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:28:05,597 INFO L87 Difference]: Start difference. First operand 33649 states and 46102 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-13 02:28:07,733 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:28:10,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:10,203 INFO L93 Difference]: Finished difference Result 95687 states and 131270 transitions. [2021-11-13 02:28:10,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:28:10,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 134 [2021-11-13 02:28:10,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:10,776 INFO L225 Difference]: With dead ends: 95687 [2021-11-13 02:28:10,777 INFO L226 Difference]: Without dead ends: 62061 [2021-11-13 02:28:10,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 265 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 02:28:10,920 INFO L933 BasicCegarLoop]: 2482 mSDtfsCounter, 1829 mSDsluCounter, 2062 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2260.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1829 SdHoareTripleChecker+Valid, 4544 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.07ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2307.21ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:10,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1829 Valid, 4544 Invalid, 68 Unknown, 0 Unchecked, 10.07ms Time], IncrementalHoareTripleChecker [7 Valid, 60 Invalid, 1 Unknown, 0 Unchecked, 2307.21ms Time] [2021-11-13 02:28:10,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62061 states. [2021-11-13 02:28:13,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62061 to 62005. [2021-11-13 02:28:13,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62005 states, 43430 states have (on average 1.2683168316831683) internal successors, (55083), 44407 states have internal predecessors, (55083), 14764 states have call successors, (14764), 3893 states have call predecessors, (14764), 3808 states have return successors, (15153), 14265 states have call predecessors, (15153), 14760 states have call successors, (15153) [2021-11-13 02:28:14,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62005 states to 62005 states and 85000 transitions. [2021-11-13 02:28:14,240 INFO L78 Accepts]: Start accepts. Automaton has 62005 states and 85000 transitions. Word has length 134 [2021-11-13 02:28:14,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:14,242 INFO L470 AbstractCegarLoop]: Abstraction has 62005 states and 85000 transitions. [2021-11-13 02:28:14,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-13 02:28:14,243 INFO L276 IsEmpty]: Start isEmpty. Operand 62005 states and 85000 transitions. [2021-11-13 02:28:14,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-13 02:28:14,245 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:14,246 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:14,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 02:28:14,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:28:14,468 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:28:14,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:14,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1936071656, now seen corresponding path program 1 times [2021-11-13 02:28:14,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:28:14,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [489212961] [2021-11-13 02:28:14,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:14,471 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:28:14,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:28:14,473 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:28:14,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 02:28:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:15,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 1215 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:28:15,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:16,255 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-13 02:28:16,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:28:16,537 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-13 02:28:16,537 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:28:16,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [489212961] [2021-11-13 02:28:16,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [489212961] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:16,538 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:16,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 02:28:16,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240433895] [2021-11-13 02:28:16,539 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:16,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:28:16,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:28:16,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:28:16,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:28:16,540 INFO L87 Difference]: Start difference. First operand 62005 states and 85000 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-13 02:28:18,658 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 02:28:25,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:25,368 INFO L93 Difference]: Finished difference Result 145630 states and 198059 transitions. [2021-11-13 02:28:25,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:28:25,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 134 [2021-11-13 02:28:25,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:25,793 INFO L225 Difference]: With dead ends: 145630 [2021-11-13 02:28:25,794 INFO L226 Difference]: Without dead ends: 83648 [2021-11-13 02:28:26,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 264 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 02:28:26,235 INFO L933 BasicCegarLoop]: 3088 mSDtfsCounter, 4067 mSDsluCounter, 2846 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 445 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5035.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4067 SdHoareTripleChecker+Valid, 5934 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.74ms SdHoareTripleChecker+Time, 445 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5536.98ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:26,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4067 Valid, 5934 Invalid, 1279 Unknown, 0 Unchecked, 19.74ms Time], IncrementalHoareTripleChecker [445 Valid, 833 Invalid, 1 Unknown, 0 Unchecked, 5536.98ms Time] [2021-11-13 02:28:26,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83648 states. [2021-11-13 02:28:30,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83648 to 83522. [2021-11-13 02:28:30,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83522 states, 58972 states have (on average 1.2535101404056161) internal successors, (73922), 60260 states have internal predecessors, (73922), 19053 states have call successors, (19053), 5643 states have call predecessors, (19053), 5494 states have return successors, (19311), 18384 states have call predecessors, (19311), 19049 states have call successors, (19311) [2021-11-13 02:28:30,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83522 states to 83522 states and 112286 transitions. [2021-11-13 02:28:30,879 INFO L78 Accepts]: Start accepts. Automaton has 83522 states and 112286 transitions. Word has length 134 [2021-11-13 02:28:30,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:30,880 INFO L470 AbstractCegarLoop]: Abstraction has 83522 states and 112286 transitions. [2021-11-13 02:28:30,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-13 02:28:30,881 INFO L276 IsEmpty]: Start isEmpty. Operand 83522 states and 112286 transitions. [2021-11-13 02:28:30,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-13 02:28:30,884 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:30,885 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 9, 9, 9, 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] [2021-11-13 02:28:30,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 02:28:31,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:28:31,100 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:28:31,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:31,101 INFO L85 PathProgramCache]: Analyzing trace with hash 2026893092, now seen corresponding path program 1 times [2021-11-13 02:28:31,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:28:31,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [606404563] [2021-11-13 02:28:31,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:31,103 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:28:31,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:28:31,104 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:28:31,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccc3c13-4a78-41a6-9cdc-9317a1007b77/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 02:28:32,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:32,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 1214 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:28:32,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:33,053 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-13 02:28:33,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:28:33,518 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2021-11-13 02:28:33,519 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:28:33,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [606404563] [2021-11-13 02:28:33,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [606404563] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:33,519 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:33,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 02:28:33,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245667538] [2021-11-13 02:28:33,520 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:33,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:28:33,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:28:33,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:28:33,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:28:33,526 INFO L87 Difference]: Start difference. First operand 83522 states and 112286 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2021-11-13 02:28:35,722 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 02:28:49,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:49,215 INFO L93 Difference]: Finished difference Result 331128 states and 445379 transitions. [2021-11-13 02:28:49,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:28:49,216 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 155 [2021-11-13 02:28:49,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:51,220 INFO L225 Difference]: With dead ends: 331128 [2021-11-13 02:28:51,220 INFO L226 Difference]: Without dead ends: 247629 [2021-11-13 02:28:51,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 306 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 02:28:51,499 INFO L933 BasicCegarLoop]: 3168 mSDtfsCounter, 5303 mSDsluCounter, 3445 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 676 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5778.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5303 SdHoareTripleChecker+Valid, 6613 SdHoareTripleChecker+Invalid, 1452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.92ms SdHoareTripleChecker+Time, 676 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6689.16ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:51,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5303 Valid, 6613 Invalid, 1452 Unknown, 0 Unchecked, 24.92ms Time], IncrementalHoareTripleChecker [676 Valid, 775 Invalid, 1 Unknown, 0 Unchecked, 6689.16ms Time] [2021-11-13 02:28:51,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247629 states.