./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6a79b35c65887feb0e3310d99b98c096a3638844b86132f83b5aa5c0d07bcad8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:49:41,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:49:41,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:49:41,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:49:41,452 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:49:41,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:49:41,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:49:41,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:49:41,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:49:41,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:49:41,479 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:49:41,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:49:41,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:49:41,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:49:41,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:49:41,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:49:41,498 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:49:41,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:49:41,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:49:41,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:49:41,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:49:41,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:49:41,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:49:41,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:49:41,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:49:41,531 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:49:41,532 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:49:41,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:49:41,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:49:41,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:49:41,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:49:41,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:49:41,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:49:41,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:49:41,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:49:41,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:49:41,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:49:41,547 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:49:41,547 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:49:41,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:49:41,549 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:49:41,550 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 15:49:41,607 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:49:41,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:49:41,609 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:49:41,610 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:49:41,610 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:49:41,610 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:49:41,610 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:49:41,611 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 15:49:41,611 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:49:41,611 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:49:41,613 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 15:49:41,613 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 15:49:41,614 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:49:41,614 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 15:49:41,614 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 15:49:41,615 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 15:49:41,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:49:41,616 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 15:49:41,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:49:41,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:49:41,617 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:49:41,617 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:49:41,617 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:49:41,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:49:41,618 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:49:41,618 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:49:41,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:49:41,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:49:41,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:49:41,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:49:41,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:49:41,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:49:41,621 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 15:49:41,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 15:49:41,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:49:41,621 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:49:41,622 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:49:41,622 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_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a79b35c65887feb0e3310d99b98c096a3638844b86132f83b5aa5c0d07bcad8 [2021-11-19 15:49:42,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:49:42,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:49:42,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:49:42,071 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:49:42,075 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:49:42,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2021-11-19 15:49:42,154 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/data/216abc4be/94663819d78642a0bc79632e4df7d5f6/FLAGb1fcad979 [2021-11-19 15:49:43,505 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:49:43,506 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2021-11-19 15:49:43,612 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/data/216abc4be/94663819d78642a0bc79632e4df7d5f6/FLAGb1fcad979 [2021-11-19 15:49:44,084 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/data/216abc4be/94663819d78642a0bc79632e4df7d5f6 [2021-11-19 15:49:44,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:49:44,090 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:49:44,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:49:44,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:49:44,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:49:44,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:49:44" (1/1) ... [2021-11-19 15:49:44,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2955700a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:49:44, skipping insertion in model container [2021-11-19 15:49:44,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:49:44" (1/1) ... [2021-11-19 15:49:44,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:49:44,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:49:46,884 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:49:47,198 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:49:47,200 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:49:47,364 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:49:47,524 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:49:47,611 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:49:49,355 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490366,490379] [2021-11-19 15:49:49,358 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490535,490548] [2021-11-19 15:49:49,359 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490702,490715] [2021-11-19 15:49:49,360 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490870,490883] [2021-11-19 15:49:49,377 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:49:49,435 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 15:49:49,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@135f3060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:49:49, skipping insertion in model container [2021-11-19 15:49:49,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:49:49,436 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 15:49:49,439 INFO L158 Benchmark]: Toolchain (without parser) took 5347.43ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 77.3MB in the beginning and 71.1MB in the end (delta: 6.2MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. [2021-11-19 15:49:49,440 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 113.2MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 15:49:49,441 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5340.98ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 76.8MB in the beginning and 71.1MB in the end (delta: 5.7MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. [2021-11-19 15:49:49,443 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 113.2MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5340.98ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 76.8MB in the beginning and 71.1MB in the end (delta: 5.7MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6895]: 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_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6a79b35c65887feb0e3310d99b98c096a3638844b86132f83b5aa5c0d07bcad8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:49:52,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:49:52,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:49:52,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:49:52,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:49:52,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:49:52,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:49:52,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:49:52,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:49:52,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:49:52,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:49:52,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:49:52,393 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:49:52,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:49:52,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:49:52,404 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:49:52,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:49:52,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:49:52,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:49:52,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:49:52,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:49:52,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:49:52,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:49:52,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:49:52,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:49:52,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:49:52,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:49:52,449 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:49:52,450 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:49:52,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:49:52,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:49:52,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:49:52,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:49:52,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:49:52,459 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:49:52,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:49:52,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:49:52,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:49:52,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:49:52,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:49:52,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:49:52,488 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 15:49:52,547 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:49:52,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:49:52,549 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:49:52,550 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:49:52,550 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:49:52,551 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:49:52,551 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:49:52,551 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:49:52,551 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:49:52,552 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:49:52,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:49:52,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:49:52,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:49:52,556 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:49:52,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:49:52,556 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:49:52,557 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 15:49:52,557 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 15:49:52,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:49:52,558 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:49:52,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:49:52,558 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:49:52,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 15:49:52,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:49:52,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:49:52,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:49:52,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:49:52,561 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:49:52,561 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 15:49:52,561 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 15:49:52,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:49:52,562 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:49:52,562 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:49:52,563 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_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a79b35c65887feb0e3310d99b98c096a3638844b86132f83b5aa5c0d07bcad8 [2021-11-19 15:49:53,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:49:53,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:49:53,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:49:53,096 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:49:53,097 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:49:53,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2021-11-19 15:49:53,180 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/data/052159409/274b37c73e3449f0ad9a0ad57d45fedd/FLAG86a812a2a [2021-11-19 15:49:54,593 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:49:54,593 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2021-11-19 15:49:54,722 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/data/052159409/274b37c73e3449f0ad9a0ad57d45fedd/FLAG86a812a2a [2021-11-19 15:49:55,082 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/data/052159409/274b37c73e3449f0ad9a0ad57d45fedd [2021-11-19 15:49:55,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:49:55,088 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:49:55,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:49:55,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:49:55,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:49:55,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:49:55" (1/1) ... [2021-11-19 15:49:55,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b5a65f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:49:55, skipping insertion in model container [2021-11-19 15:49:55,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:49:55" (1/1) ... [2021-11-19 15:49:55,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:49:55,390 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:50:00,491 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490366,490379] [2021-11-19 15:50:00,495 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490535,490548] [2021-11-19 15:50:00,496 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490702,490715] [2021-11-19 15:50:00,496 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490870,490883] [2021-11-19 15:50:00,529 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:50:00,640 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 15:50:00,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:50:01,387 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490366,490379] [2021-11-19 15:50:01,388 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490535,490548] [2021-11-19 15:50:01,389 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490702,490715] [2021-11-19 15:50:01,389 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490870,490883] [2021-11-19 15:50:01,398 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:50:01,445 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 15:50:02,230 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490366,490379] [2021-11-19 15:50:02,230 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490535,490548] [2021-11-19 15:50:02,232 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490702,490715] [2021-11-19 15:50:02,237 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490870,490883] [2021-11-19 15:50:02,245 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:50:02,693 INFO L208 MainTranslator]: Completed translation [2021-11-19 15:50:02,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:50:02 WrapperNode [2021-11-19 15:50:02,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:50:02,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 15:50:02,701 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 15:50:02,701 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 15:50:02,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:50:02" (1/1) ... [2021-11-19 15:50:02,873 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:50:02" (1/1) ... [2021-11-19 15:50:03,218 INFO L137 Inliner]: procedures = 488, calls = 4636, calls flagged for inlining = 228, calls inlined = 198, statements flattened = 8649 [2021-11-19 15:50:03,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 15:50:03,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 15:50:03,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 15:50:03,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 15:50:03,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:50:02" (1/1) ... [2021-11-19 15:50:03,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:50:02" (1/1) ... [2021-11-19 15:50:03,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:50:02" (1/1) ... [2021-11-19 15:50:03,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:50:02" (1/1) ... [2021-11-19 15:50:03,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:50:02" (1/1) ... [2021-11-19 15:50:03,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:50:02" (1/1) ... [2021-11-19 15:50:03,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:50:02" (1/1) ... [2021-11-19 15:50:03,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 15:50:03,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 15:50:03,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 15:50:03,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 15:50:03,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:50:02" (1/1) ... [2021-11-19 15:50:03,896 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:50:03,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:50:03,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 15:50:03,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 15:50:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_reset [2021-11-19 15:50:03,997 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_reset [2021-11-19 15:50:03,997 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2021-11-19 15:50:03,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2021-11-19 15:50:03,997 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_stop [2021-11-19 15:50:03,998 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_stop [2021-11-19 15:50:03,998 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_config_parameter_str [2021-11-19 15:50:03,998 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_config_parameter_str [2021-11-19 15:50:03,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 15:50:03,998 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 15:50:03,999 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_inform_bss [2021-11-19 15:50:03,999 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_inform_bss [2021-11-19 15:50:03,999 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_pause_rx [2021-11-19 15:50:03,999 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_pause_rx [2021-11-19 15:50:04,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 15:50:04,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 15:50:04,000 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_tx_fixup [2021-11-19 15:50:04,000 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_tx_fixup [2021-11-19 15:50:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 15:50:04,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 15:50:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_bind [2021-11-19 15:50:04,001 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_bind [2021-11-19 15:50:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_set_multicast_list [2021-11-19 15:50:04,002 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_set_multicast_list [2021-11-19 15:50:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_purge_paused_rxq [2021-11-19 15:50:04,002 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_purge_paused_rxq [2021-11-19 15:50:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_unbind [2021-11-19 15:50:04,003 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_unbind [2021-11-19 15:50:04,003 INFO L130 BoogieDeclarations]: Found specification of procedure set_encr_mode [2021-11-19 15:50:04,003 INFO L138 BoogieDeclarations]: Found implementation of procedure set_encr_mode [2021-11-19 15:50:04,003 INFO L130 BoogieDeclarations]: Found specification of procedure get_rndis_wlan_priv [2021-11-19 15:50:04,003 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rndis_wlan_priv [2021-11-19 15:50:04,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 15:50:04,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 15:50:04,004 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2021-11-19 15:50:04,004 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2021-11-19 15:50:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 15:50:04,005 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 15:50:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 15:50:04,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 15:50:04,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 15:50:04,006 INFO L130 BoogieDeclarations]: Found specification of procedure set_infra_mode [2021-11-19 15:50:04,006 INFO L138 BoogieDeclarations]: Found implementation of procedure set_infra_mode [2021-11-19 15:50:04,006 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_command [2021-11-19 15:50:04,006 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_command [2021-11-19 15:50:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 15:50:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 15:50:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 15:50:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 15:50:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_scan_done [2021-11-19 15:50:04,008 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_scan_done [2021-11-19 15:50:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-19 15:50:04,008 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-19 15:50:04,009 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-19 15:50:04,009 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-19 15:50:04,009 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_fill_station_info [2021-11-19 15:50:04,009 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_fill_station_info [2021-11-19 15:50:04,009 INFO L130 BoogieDeclarations]: Found specification of procedure unknown_early_init [2021-11-19 15:50:04,010 INFO L138 BoogieDeclarations]: Found implementation of procedure unknown_early_init [2021-11-19 15:50:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure disassociate [2021-11-19 15:50:04,010 INFO L138 BoogieDeclarations]: Found implementation of procedure disassociate [2021-11-19 15:50:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2021-11-19 15:50:04,011 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2021-11-19 15:50:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_query_oid [2021-11-19 15:50:04,011 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_query_oid [2021-11-19 15:50:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2021-11-19 15:50:04,011 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2021-11-19 15:50:04,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 15:50:04,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 15:50:04,012 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2021-11-19 15:50:04,012 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2021-11-19 15:50:04,013 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_free [2021-11-19 15:50:04,013 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_free [2021-11-19 15:50:04,013 INFO L130 BoogieDeclarations]: Found specification of procedure is_wpa_key [2021-11-19 15:50:04,013 INFO L138 BoogieDeclarations]: Found implementation of procedure is_wpa_key [2021-11-19 15:50:04,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 15:50:04,014 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 15:50:04,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 15:50:04,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 15:50:04,014 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_priv [2021-11-19 15:50:04,014 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_priv [2021-11-19 15:50:04,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 15:50:04,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 15:50:04,015 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_check_bssid_list [2021-11-19 15:50:04,015 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_check_bssid_list [2021-11-19 15:50:04,016 INFO L130 BoogieDeclarations]: Found specification of procedure __toupper [2021-11-19 15:50:04,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __toupper [2021-11-19 15:50:04,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 15:50:04,016 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320b_early_init [2021-11-19 15:50:04,016 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320b_early_init [2021-11-19 15:50:04,017 INFO L130 BoogieDeclarations]: Found specification of procedure set_channel [2021-11-19 15:50:04,017 INFO L138 BoogieDeclarations]: Found implementation of procedure set_channel [2021-11-19 15:50:04,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 15:50:04,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 15:50:04,018 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_status [2021-11-19 15:50:04,018 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_status [2021-11-19 15:50:04,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-19 15:50:04,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-19 15:50:04,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 15:50:04,019 INFO L130 BoogieDeclarations]: Found specification of procedure level_to_qual [2021-11-19 15:50:04,019 INFO L138 BoogieDeclarations]: Found implementation of procedure level_to_qual [2021-11-19 15:50:04,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 15:50:04,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 15:50:04,020 INFO L130 BoogieDeclarations]: Found specification of procedure set_essid [2021-11-19 15:50:04,020 INFO L138 BoogieDeclarations]: Found implementation of procedure set_essid [2021-11-19 15:50:04,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 15:50:04,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 15:50:04,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 15:50:04,021 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_put_bss [2021-11-19 15:50:04,021 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_put_bss [2021-11-19 15:50:04,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 15:50:04,021 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_start_bssid_list_scan [2021-11-19 15:50:04,022 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_start_bssid_list_scan [2021-11-19 15:50:04,022 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2021-11-19 15:50:04,022 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2021-11-19 15:50:04,022 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_copy_module_params [2021-11-19 15:50:04,023 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_copy_module_params [2021-11-19 15:50:04,023 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-19 15:50:04,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-19 15:50:04,023 INFO L130 BoogieDeclarations]: Found specification of procedure set_auth_mode [2021-11-19 15:50:04,023 INFO L138 BoogieDeclarations]: Found implementation of procedure set_auth_mode [2021-11-19 15:50:04,024 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-19 15:50:04,024 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-19 15:50:04,024 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-19 15:50:04,024 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-19 15:50:04,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 15:50:04,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 15:50:04,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 15:50:04,025 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-19 15:50:04,026 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-19 15:50:04,026 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-19 15:50:04,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-19 15:50:04,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 15:50:04,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 15:50:04,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 15:50:04,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 15:50:04,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 15:50:04,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 15:50:04,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 15:50:04,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 15:50:04,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rndis_wlan_driver_exit_11_2 [2021-11-19 15:50:04,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rndis_wlan_driver_exit_11_2 [2021-11-19 15:50:04,028 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-19 15:50:04,028 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-19 15:50:04,029 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_cipher_to_alg [2021-11-19 15:50:04,029 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_cipher_to_alg [2021-11-19 15:50:04,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 15:50:04,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 15:50:04,029 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-19 15:50:04,030 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-19 15:50:04,030 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_channel [2021-11-19 15:50:04,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_channel [2021-11-19 15:50:04,030 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-11-19 15:50:04,030 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-11-19 15:50:04,031 INFO L130 BoogieDeclarations]: Found specification of procedure add_wep_key [2021-11-19 15:50:04,031 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wep_key [2021-11-19 15:50:04,031 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2021-11-19 15:50:04,031 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2021-11-19 15:50:04,032 INFO L130 BoogieDeclarations]: Found specification of procedure is_broadcast_ether_addr [2021-11-19 15:50:04,032 INFO L138 BoogieDeclarations]: Found implementation of procedure is_broadcast_ether_addr [2021-11-19 15:50:04,032 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-19 15:50:04,032 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-19 15:50:04,032 INFO L130 BoogieDeclarations]: Found specification of procedure set_bssid [2021-11-19 15:50:04,032 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bssid [2021-11-19 15:50:04,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 15:50:04,033 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 15:50:04,033 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-19 15:50:04,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-19 15:50:04,034 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-19 15:50:04,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-19 15:50:04,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 15:50:04,034 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 15:50:04,034 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 15:50:04,035 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bssid [2021-11-19 15:50:04,035 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bssid [2021-11-19 15:50:04,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 15:50:04,035 INFO L130 BoogieDeclarations]: Found specification of procedure set_device_pmkids [2021-11-19 15:50:04,035 INFO L138 BoogieDeclarations]: Found implementation of procedure set_device_pmkids [2021-11-19 15:50:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure get_device_pmkids [2021-11-19 15:50:04,036 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device_pmkids [2021-11-19 15:50:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure netif_addr_unlock_bh [2021-11-19 15:50:04,036 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_addr_unlock_bh [2021-11-19 15:50:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 15:50:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 15:50:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 15:50:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-11-19 15:50:04,037 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-11-19 15:50:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 15:50:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 15:50:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure next_bssid_list_item [2021-11-19 15:50:04,038 INFO L138 BoogieDeclarations]: Found implementation of procedure next_bssid_list_item [2021-11-19 15:50:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-19 15:50:04,038 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-19 15:50:04,039 INFO L130 BoogieDeclarations]: Found specification of procedure set_priv_filter [2021-11-19 15:50:04,039 INFO L138 BoogieDeclarations]: Found implementation of procedure set_priv_filter [2021-11-19 15:50:04,039 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-19 15:50:04,039 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-19 15:50:04,039 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 15:50:04,040 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 15:50:04,040 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_wiphy_params [2021-11-19 15:50:04,040 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_wiphy_params [2021-11-19 15:50:04,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 15:50:04,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 15:50:04,041 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-19 15:50:04,041 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-19 15:50:04,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_7_4 [2021-11-19 15:50:04,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_7_4 [2021-11-19 15:50:04,041 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-11-19 15:50:04,042 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-11-19 15:50:04,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 15:50:04,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 15:50:04,042 INFO L130 BoogieDeclarations]: Found specification of procedure oid_to_string [2021-11-19 15:50:04,043 INFO L138 BoogieDeclarations]: Found implementation of procedure oid_to_string [2021-11-19 15:50:04,043 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2021-11-19 15:50:04,043 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2021-11-19 15:50:04,043 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 15:50:04,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 15:50:04,044 INFO L130 BoogieDeclarations]: Found specification of procedure deauthenticate [2021-11-19 15:50:04,044 INFO L138 BoogieDeclarations]: Found implementation of procedure deauthenticate [2021-11-19 15:50:04,044 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 15:50:04,044 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 15:50:04,044 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320a_early_init [2021-11-19 15:50:04,044 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320a_early_init [2021-11-19 15:50:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_michael_mic_failure [2021-11-19 15:50:04,045 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_michael_mic_failure [2021-11-19 15:50:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure set_default_iw_params [2021-11-19 15:50:04,045 INFO L138 BoogieDeclarations]: Found implementation of procedure set_default_iw_params [2021-11-19 15:50:04,046 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_error_status [2021-11-19 15:50:04,046 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_error_status [2021-11-19 15:50:04,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 15:50:04,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 15:50:04,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 15:50:04,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 15:50:04,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 15:50:04,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 15:50:04,047 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume_rx [2021-11-19 15:50:04,047 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume_rx [2021-11-19 15:50:04,048 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-11-19 15:50:04,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-11-19 15:50:04,048 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-19 15:50:04,048 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-19 15:50:04,048 INFO L130 BoogieDeclarations]: Found specification of procedure get_bcm4320_power_dbm [2021-11-19 15:50:04,049 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bcm4320_power_dbm [2021-11-19 15:50:04,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 15:50:04,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 15:50:04,049 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-19 15:50:04,050 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-19 15:50:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_rx_fixup [2021-11-19 15:50:04,050 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_rx_fixup [2021-11-19 15:50:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_oid [2021-11-19 15:50:04,050 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_oid [2021-11-19 15:50:04,051 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_indication [2021-11-19 15:50:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_indication [2021-11-19 15:50:04,051 INFO L130 BoogieDeclarations]: Found specification of procedure get_bssid [2021-11-19 15:50:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bssid [2021-11-19 15:50:04,051 INFO L130 BoogieDeclarations]: Found specification of procedure is_associated [2021-11-19 15:50:04,052 INFO L138 BoogieDeclarations]: Found implementation of procedure is_associated [2021-11-19 15:50:04,052 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-19 15:50:04,052 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-11-19 15:50:04,052 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-11-19 15:50:04,052 INFO L130 BoogieDeclarations]: Found specification of procedure debug_print_pmkids [2021-11-19 15:50:04,053 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_print_pmkids [2021-11-19 15:50:04,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 15:50:04,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 15:50:05,573 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 15:50:05,578 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 15:50:13,639 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 15:52:36,536 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 15:52:41,822 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 15:52:41,849 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 15:52:41,850 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 15:52:41,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:52:41 BoogieIcfgContainer [2021-11-19 15:52:41,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 15:52:41,861 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 15:52:41,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 15:52:41,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 15:52:41,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:49:55" (1/3) ... [2021-11-19 15:52:41,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a292a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:52:41, skipping insertion in model container [2021-11-19 15:52:41,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:50:02" (2/3) ... [2021-11-19 15:52:41,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a292a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:52:41, skipping insertion in model container [2021-11-19 15:52:41,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:52:41" (3/3) ... [2021-11-19 15:52:41,868 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2021-11-19 15:52:41,873 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 15:52:41,874 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 15:52:41,935 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:52:41,949 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 15:52:41,949 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 15:52:42,038 INFO L276 IsEmpty]: Start isEmpty. Operand has 2661 states, 1854 states have (on average 1.306903991370011) internal successors, (2423), 1858 states have internal predecessors, (2423), 689 states have call successors, (689), 116 states have call predecessors, (689), 115 states have return successors, (681), 681 states have call predecessors, (681), 681 states have call successors, (681) [2021-11-19 15:52:42,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2021-11-19 15:52:42,087 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:52:42,088 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:52:42,089 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:52:42,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:52:42,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1424593025, now seen corresponding path program 1 times [2021-11-19 15:52:42,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:52:42,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953252948] [2021-11-19 15:52:42,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:52:42,123 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:52:42,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:52:42,128 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:52:42,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 15:52:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:52:46,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 4046 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:52:46,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:52:48,301 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5670 trivial. 0 not checked. [2021-11-19 15:52:48,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:52:50,168 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5778 trivial. 0 not checked. [2021-11-19 15:52:50,169 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:52:50,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953252948] [2021-11-19 15:52:50,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1953252948] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:52:50,170 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:52:50,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:52:50,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704464260] [2021-11-19 15:52:50,173 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:52:50,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:52:50,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:52:50,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:52:50,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:52:50,238 INFO L87 Difference]: Start difference. First operand has 2661 states, 1854 states have (on average 1.306903991370011) internal successors, (2423), 1858 states have internal predecessors, (2423), 689 states have call successors, (689), 116 states have call predecessors, (689), 115 states have return successors, (681), 681 states have call predecessors, (681), 681 states have call successors, (681) Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 4 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-19 15:53:19,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:53:19,639 INFO L93 Difference]: Finished difference Result 10190 states and 14700 transitions. [2021-11-19 15:53:19,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:53:19,641 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 4 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) Word has length 430 [2021-11-19 15:53:19,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:53:19,850 INFO L225 Difference]: With dead ends: 10190 [2021-11-19 15:53:19,850 INFO L226 Difference]: Without dead ends: 7585 [2021-11-19 15:53:19,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 858 GetRequests, 856 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:53:19,889 INFO L933 BasicCegarLoop]: 5031 mSDtfsCounter, 7226 mSDsluCounter, 9382 mSDsCounter, 0 mSdLazyCounter, 1450 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7226 SdHoareTripleChecker+Valid, 14413 SdHoareTripleChecker+Invalid, 1488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.7s IncrementalHoareTripleChecker+Time [2021-11-19 15:53:19,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7226 Valid, 14413 Invalid, 1488 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 1450 Invalid, 0 Unknown, 0 Unchecked, 28.7s Time] [2021-11-19 15:53:19,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7585 states. [2021-11-19 15:53:20,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7585 to 7560. [2021-11-19 15:53:20,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7560 states, 5322 states have (on average 1.3102217211574596) internal successors, (6973), 5330 states have internal predecessors, (6973), 1897 states have call successors, (1897), 339 states have call predecessors, (1897), 338 states have return successors, (1893), 1893 states have call predecessors, (1893), 1893 states have call successors, (1893) [2021-11-19 15:53:20,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7560 states to 7560 states and 10763 transitions. [2021-11-19 15:53:20,624 INFO L78 Accepts]: Start accepts. Automaton has 7560 states and 10763 transitions. Word has length 430 [2021-11-19 15:53:20,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:53:20,627 INFO L470 AbstractCegarLoop]: Abstraction has 7560 states and 10763 transitions. [2021-11-19 15:53:20,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 4 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-19 15:53:20,628 INFO L276 IsEmpty]: Start isEmpty. Operand 7560 states and 10763 transitions. [2021-11-19 15:53:20,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2021-11-19 15:53:20,659 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:53:20,660 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 36, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:53:20,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 15:53:20,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:53:20,887 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:53:20,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:53:20,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1600924656, now seen corresponding path program 1 times [2021-11-19 15:53:20,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:53:20,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1099363052] [2021-11-19 15:53:20,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:53:20,900 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:53:20,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:53:20,901 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:53:20,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 15:53:24,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:53:25,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 4259 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:53:25,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:53:27,686 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5679 trivial. 0 not checked. [2021-11-19 15:53:27,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:53:29,958 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5787 trivial. 0 not checked. [2021-11-19 15:53:29,962 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:53:29,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1099363052] [2021-11-19 15:53:29,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1099363052] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:53:29,965 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:53:29,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 15:53:29,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192642078] [2021-11-19 15:53:29,966 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:53:29,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:53:29,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:53:29,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:53:29,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:53:29,983 INFO L87 Difference]: Start difference. First operand 7560 states and 10763 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-19 15:53:32,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:53:32,833 INFO L93 Difference]: Finished difference Result 19859 states and 28249 transitions. [2021-11-19 15:53:32,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:53:32,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 482 [2021-11-19 15:53:32,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:53:32,973 INFO L225 Difference]: With dead ends: 19859 [2021-11-19 15:53:32,974 INFO L226 Difference]: Without dead ends: 12376 [2021-11-19 15:53:33,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 962 GetRequests, 961 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:53:33,028 INFO L933 BasicCegarLoop]: 4383 mSDtfsCounter, 3504 mSDsluCounter, 3703 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3504 SdHoareTripleChecker+Valid, 8086 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:53:33,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3504 Valid, 8086 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-19 15:53:33,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12376 states. [2021-11-19 15:53:33,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12376 to 12346. [2021-11-19 15:53:33,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12346 states, 8718 states have (on average 1.3097040605643495) internal successors, (11418), 8733 states have internal predecessors, (11418), 3059 states have call successors, (3059), 567 states have call predecessors, (3059), 566 states have return successors, (3055), 3050 states have call predecessors, (3055), 3055 states have call successors, (3055) [2021-11-19 15:53:33,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12346 states to 12346 states and 17532 transitions. [2021-11-19 15:53:33,918 INFO L78 Accepts]: Start accepts. Automaton has 12346 states and 17532 transitions. Word has length 482 [2021-11-19 15:53:33,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:53:33,922 INFO L470 AbstractCegarLoop]: Abstraction has 12346 states and 17532 transitions. [2021-11-19 15:53:33,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-19 15:53:33,923 INFO L276 IsEmpty]: Start isEmpty. Operand 12346 states and 17532 transitions. [2021-11-19 15:53:33,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2021-11-19 15:53:33,944 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:53:33,944 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 36, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:53:34,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 15:53:34,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:53:34,166 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:53:34,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:53:34,167 INFO L85 PathProgramCache]: Analyzing trace with hash 268938547, now seen corresponding path program 1 times [2021-11-19 15:53:34,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:53:34,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1926612129] [2021-11-19 15:53:34,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:53:34,174 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:53:34,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:53:34,175 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:53:34,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 15:53:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:53:38,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 4257 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:53:38,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:53:40,762 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5679 trivial. 0 not checked. [2021-11-19 15:53:40,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:53:42,879 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5787 trivial. 0 not checked. [2021-11-19 15:53:42,879 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:53:42,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1926612129] [2021-11-19 15:53:42,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1926612129] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:53:42,879 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:53:42,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 15:53:42,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991668387] [2021-11-19 15:53:42,880 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:53:42,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:53:42,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:53:42,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:53:42,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:53:42,883 INFO L87 Difference]: Start difference. First operand 12346 states and 17532 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-19 15:53:45,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:53:45,750 INFO L93 Difference]: Finished difference Result 34141 states and 48454 transitions. [2021-11-19 15:53:45,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:53:45,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 480 [2021-11-19 15:53:45,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:53:45,937 INFO L225 Difference]: With dead ends: 34141 [2021-11-19 15:53:45,937 INFO L226 Difference]: Without dead ends: 21872 [2021-11-19 15:53:46,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 958 GetRequests, 957 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:53:46,037 INFO L933 BasicCegarLoop]: 4454 mSDtfsCounter, 3504 mSDsluCounter, 3701 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3504 SdHoareTripleChecker+Valid, 8155 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:53:46,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3504 Valid, 8155 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-19 15:53:46,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21872 states. [2021-11-19 15:53:47,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21872 to 21846. [2021-11-19 15:53:47,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21846 states, 15464 states have (on average 1.3089756854630108) internal successors, (20242), 15493 states have internal predecessors, (20242), 5357 states have call successors, (5357), 1023 states have call predecessors, (5357), 1022 states have return successors, (5353), 5338 states have call predecessors, (5353), 5353 states have call successors, (5353) [2021-11-19 15:53:48,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21846 states to 21846 states and 30952 transitions. [2021-11-19 15:53:48,099 INFO L78 Accepts]: Start accepts. Automaton has 21846 states and 30952 transitions. Word has length 480 [2021-11-19 15:53:48,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:53:48,101 INFO L470 AbstractCegarLoop]: Abstraction has 21846 states and 30952 transitions. [2021-11-19 15:53:48,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-19 15:53:48,102 INFO L276 IsEmpty]: Start isEmpty. Operand 21846 states and 30952 transitions. [2021-11-19 15:53:48,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2021-11-19 15:53:48,127 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:53:48,127 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 36, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:53:48,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-19 15:53:48,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:53:48,351 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:53:48,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:53:48,352 INFO L85 PathProgramCache]: Analyzing trace with hash -2103689921, now seen corresponding path program 1 times [2021-11-19 15:53:48,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:53:48,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1496104785] [2021-11-19 15:53:48,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:53:48,361 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:53:48,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:53:48,373 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:53:48,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 15:53:52,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:53:52,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 4286 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:53:52,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:53:55,133 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5679 trivial. 0 not checked. [2021-11-19 15:53:55,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:53:57,167 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5787 trivial. 0 not checked. [2021-11-19 15:53:57,167 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:53:57,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1496104785] [2021-11-19 15:53:57,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1496104785] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:53:57,168 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:53:57,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:53:57,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461877711] [2021-11-19 15:53:57,168 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:53:57,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:53:57,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:53:57,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:53:57,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:53:57,170 INFO L87 Difference]: Start difference. First operand 21846 states and 30952 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 4 states have call successors, (59), 3 states have call predecessors, (59), 3 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) [2021-11-19 15:54:22,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:54:22,550 INFO L93 Difference]: Finished difference Result 85321 states and 120953 transitions. [2021-11-19 15:54:22,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:54:22,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 4 states have call successors, (59), 3 states have call predecessors, (59), 3 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) Word has length 488 [2021-11-19 15:54:22,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:54:23,165 INFO L225 Difference]: With dead ends: 85321 [2021-11-19 15:54:23,178 INFO L226 Difference]: Without dead ends: 63552 [2021-11-19 15:54:23,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 974 GetRequests, 972 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:54:23,343 INFO L933 BasicCegarLoop]: 4994 mSDtfsCounter, 7177 mSDsluCounter, 6506 mSDsCounter, 0 mSdLazyCounter, 1420 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7177 SdHoareTripleChecker+Valid, 11500 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2021-11-19 15:54:23,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7177 Valid, 11500 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1420 Invalid, 0 Unknown, 0 Unchecked, 23.7s Time] [2021-11-19 15:54:23,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63552 states. [2021-11-19 15:54:27,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63552 to 63468. [2021-11-19 15:54:27,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63468 states, 44999 states have (on average 1.3106957932398497) internal successors, (58980), 45118 states have internal predecessors, (58980), 15466 states have call successors, (15466), 3001 states have call predecessors, (15466), 3000 states have return successors, (15462), 15375 states have call predecessors, (15462), 15462 states have call successors, (15462) [2021-11-19 15:54:27,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63468 states to 63468 states and 89908 transitions. [2021-11-19 15:54:27,533 INFO L78 Accepts]: Start accepts. Automaton has 63468 states and 89908 transitions. Word has length 488 [2021-11-19 15:54:27,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:54:27,535 INFO L470 AbstractCegarLoop]: Abstraction has 63468 states and 89908 transitions. [2021-11-19 15:54:27,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 4 states have call successors, (59), 3 states have call predecessors, (59), 3 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) [2021-11-19 15:54:27,535 INFO L276 IsEmpty]: Start isEmpty. Operand 63468 states and 89908 transitions. [2021-11-19 15:54:27,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2021-11-19 15:54:27,565 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:54:27,566 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 36, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:54:27,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 15:54:27,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:54:27,780 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:54:27,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:54:27,781 INFO L85 PathProgramCache]: Analyzing trace with hash 627471655, now seen corresponding path program 1 times [2021-11-19 15:54:27,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:54:27,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1166723876] [2021-11-19 15:54:27,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:54:27,787 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:54:27,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:54:27,789 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:54:27,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 15:54:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:54:31,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 4258 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:54:31,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:54:34,084 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5679 trivial. 0 not checked. [2021-11-19 15:54:34,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:54:35,969 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5787 trivial. 0 not checked. [2021-11-19 15:54:35,970 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:54:35,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1166723876] [2021-11-19 15:54:35,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1166723876] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:54:35,970 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:54:35,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 15:54:35,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540383070] [2021-11-19 15:54:35,971 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:54:35,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:54:35,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:54:35,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:54:35,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:54:35,973 INFO L87 Difference]: Start difference. First operand 63468 states and 89908 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-19 15:54:40,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:54:40,655 INFO L93 Difference]: Finished difference Result 178423 states and 252785 transitions. [2021-11-19 15:54:40,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:54:40,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 481 [2021-11-19 15:54:40,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:54:41,768 INFO L225 Difference]: With dead ends: 178423 [2021-11-19 15:54:41,768 INFO L226 Difference]: Without dead ends: 115032 [2021-11-19 15:54:42,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 960 GetRequests, 959 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:54:42,024 INFO L933 BasicCegarLoop]: 4837 mSDtfsCounter, 3504 mSDsluCounter, 3702 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3504 SdHoareTripleChecker+Valid, 8539 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-19 15:54:42,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3504 Valid, 8539 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-19 15:54:42,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115032 states. [2021-11-19 15:54:47,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115032 to 114996. [2021-11-19 15:54:47,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114996 states, 81656 states have (on average 1.3101670422259233) internal successors, (106983), 81891 states have internal predecessors, (106983), 27849 states have call successors, (27849), 5489 states have call predecessors, (27849), 5488 states have return successors, (27845), 27666 states have call predecessors, (27845), 27845 states have call successors, (27845) [2021-11-19 15:54:48,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114996 states to 114996 states and 162677 transitions. [2021-11-19 15:54:48,761 INFO L78 Accepts]: Start accepts. Automaton has 114996 states and 162677 transitions. Word has length 481 [2021-11-19 15:54:48,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:54:48,762 INFO L470 AbstractCegarLoop]: Abstraction has 114996 states and 162677 transitions. [2021-11-19 15:54:48,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-19 15:54:48,762 INFO L276 IsEmpty]: Start isEmpty. Operand 114996 states and 162677 transitions. [2021-11-19 15:54:48,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2021-11-19 15:54:48,790 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:54:48,790 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:54:48,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 15:54:49,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:54:49,007 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:54:49,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:54:49,008 INFO L85 PathProgramCache]: Analyzing trace with hash -657839043, now seen corresponding path program 1 times [2021-11-19 15:54:49,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:54:49,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064205287] [2021-11-19 15:54:49,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:54:49,015 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:54:49,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:54:49,016 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:54:49,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 15:54:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:54:52,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 4178 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:54:52,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:55:07,634 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2021-11-19 15:55:07,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:55:13,089 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2021-11-19 15:55:13,090 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:55:13,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064205287] [2021-11-19 15:55:13,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064205287] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:55:13,091 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:55:13,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 15:55:13,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846897733] [2021-11-19 15:55:13,092 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:55:13,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 15:55:13,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:55:13,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 15:55:13,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:55:13,094 INFO L87 Difference]: Start difference. First operand 114996 states and 162677 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (93), 4 states have call predecessors, (93), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) [2021-11-19 15:55:17,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:55:17,040 INFO L93 Difference]: Finished difference Result 115002 states and 162682 transitions. [2021-11-19 15:55:17,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:55:17,040 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (93), 4 states have call predecessors, (93), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) Word has length 493 [2021-11-19 15:55:17,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:55:17,565 INFO L225 Difference]: With dead ends: 115002 [2021-11-19 15:55:17,566 INFO L226 Difference]: Without dead ends: 115000 [2021-11-19 15:55:17,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 987 GetRequests, 979 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:55:17,624 INFO L933 BasicCegarLoop]: 3757 mSDtfsCounter, 3586 mSDsluCounter, 11258 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3596 SdHoareTripleChecker+Valid, 15015 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 15:55:17,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3596 Valid, 15015 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 15:55:17,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115000 states. [2021-11-19 15:55:22,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115000 to 115000. [2021-11-19 15:55:22,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115000 states, 81659 states have (on average 1.3101556472648452) internal successors, (106986), 81894 states have internal predecessors, (106986), 27849 states have call successors, (27849), 5490 states have call predecessors, (27849), 5489 states have return successors, (27845), 27666 states have call predecessors, (27845), 27845 states have call successors, (27845) [2021-11-19 15:55:23,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115000 states to 115000 states and 162680 transitions. [2021-11-19 15:55:23,453 INFO L78 Accepts]: Start accepts. Automaton has 115000 states and 162680 transitions. Word has length 493 [2021-11-19 15:55:23,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:55:23,454 INFO L470 AbstractCegarLoop]: Abstraction has 115000 states and 162680 transitions. [2021-11-19 15:55:23,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (93), 4 states have call predecessors, (93), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) [2021-11-19 15:55:23,455 INFO L276 IsEmpty]: Start isEmpty. Operand 115000 states and 162680 transitions. [2021-11-19 15:55:23,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2021-11-19 15:55:23,479 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:55:23,480 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:55:23,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-19 15:55:23,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:55:23,702 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:55:23,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:55:23,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1139529592, now seen corresponding path program 1 times [2021-11-19 15:55:23,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:55:23,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888653971] [2021-11-19 15:55:23,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:55:23,706 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:55:23,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:55:23,707 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:55:23,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f688f61c-fd0a-45be-b5ec-968d9f2a79d2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 15:55:26,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:55:26,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 4224 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:55:26,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:55:28,480 INFO L134 CoverageAnalysis]: Checked inductivity of 6168 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 6021 trivial. 0 not checked. [2021-11-19 15:55:28,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:55:29,760 INFO L134 CoverageAnalysis]: Checked inductivity of 6168 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2021-11-19 15:55:29,760 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:55:29,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888653971] [2021-11-19 15:55:29,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1888653971] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:55:29,761 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:55:29,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:55:29,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622250681] [2021-11-19 15:55:29,762 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:55:29,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:55:29,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:55:29,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:55:29,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:55:29,764 INFO L87 Difference]: Start difference. First operand 115000 states and 162680 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 4 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (54), 4 states have call predecessors, (54), 4 states have call successors, (54) [2021-11-19 15:56:01,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:56:01,476 INFO L93 Difference]: Finished difference Result 331739 states and 469329 transitions. [2021-11-19 15:56:01,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:56:01,477 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 4 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (54), 4 states have call predecessors, (54), 4 states have call successors, (54) Word has length 504 [2021-11-19 15:56:01,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:56:02,869 INFO L225 Difference]: With dead ends: 331739 [2021-11-19 15:56:02,869 INFO L226 Difference]: Without dead ends: 222347 [2021-11-19 15:56:03,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1006 GetRequests, 1004 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:56:03,423 INFO L933 BasicCegarLoop]: 7839 mSDtfsCounter, 7221 mSDsluCounter, 6513 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7221 SdHoareTripleChecker+Valid, 14352 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2021-11-19 15:56:03,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7221 Valid, 14352 Invalid, 1450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 23.9s Time] [2021-11-19 15:56:03,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222347 states.