./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.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_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/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_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/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_10252f5b-c7cc-4194-9050-52bb380693fa/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 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:39:25,348 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:39:25,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:39:25,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:39:25,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:39:25,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:39:25,392 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:39:25,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:39:25,396 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:39:25,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:39:25,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:39:25,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:39:25,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:39:25,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:39:25,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:39:25,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:39:25,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:39:25,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:39:25,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:39:25,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:39:25,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:39:25,415 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:39:25,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:39:25,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:39:25,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:39:25,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:39:25,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:39:25,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:39:25,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:39:25,425 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:39:25,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:39:25,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:39:25,427 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:39:25,428 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:39:25,429 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:39:25,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:39:25,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:39:25,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:39:25,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:39:25,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:39:25,432 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:39:25,434 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:39:25,481 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:39:25,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:39:25,483 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:39:25,484 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:39:25,484 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:39:25,484 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:39:25,484 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:39:25,485 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:39:25,491 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:39:25,491 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:39:25,492 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:39:25,492 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:39:25,493 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:39:25,493 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:39:25,493 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:39:25,493 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:39:25,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:39:25,494 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:39:25,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:39:25,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:39:25,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:39:25,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:39:25,496 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:39:25,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:39:25,496 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:39:25,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:39:25,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:39:25,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:39:25,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:39:25,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:39:25,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:39:25,500 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:39:25,500 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:39:25,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:39:25,501 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:39:25,501 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:39:25,501 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:39:25,502 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_10252f5b-c7cc-4194-9050-52bb380693fa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e [2021-11-19 14:39:25,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:39:25,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:39:25,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:39:25,785 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:39:25,786 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:39:25,787 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2021-11-19 14:39:25,885 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/data/078699d3a/14a6a0cc50fa48afbe5b179ee3c64c54/FLAGa51103bee [2021-11-19 14:39:26,849 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:39:26,849 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2021-11-19 14:39:26,915 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/data/078699d3a/14a6a0cc50fa48afbe5b179ee3c64c54/FLAGa51103bee [2021-11-19 14:39:27,260 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/data/078699d3a/14a6a0cc50fa48afbe5b179ee3c64c54 [2021-11-19 14:39:27,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:39:27,265 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:39:27,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:39:27,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:39:27,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:39:27,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:39:27" (1/1) ... [2021-11-19 14:39:27,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ab10491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:27, skipping insertion in model container [2021-11-19 14:39:27,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:39:27" (1/1) ... [2021-11-19 14:39:27,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:39:27,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:39:29,153 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 14:39:29,155 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 14:39:30,063 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_10252f5b-c7cc-4194-9050-52bb380693fa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322818,322831] [2021-11-19 14:39:30,066 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_10252f5b-c7cc-4194-9050-52bb380693fa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322987,323000] [2021-11-19 14:39:30,067 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_10252f5b-c7cc-4194-9050-52bb380693fa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323154,323167] [2021-11-19 14:39:30,067 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_10252f5b-c7cc-4194-9050-52bb380693fa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323322,323335] [2021-11-19 14:39:30,087 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:39:30,155 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 14:39:30,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7d806843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:30, skipping insertion in model container [2021-11-19 14:39:30,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:39:30,157 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:39:30,159 INFO L158 Benchmark]: Toolchain (without parser) took 2892.93ms. Allocated memory was 104.9MB in the beginning and 142.6MB in the end (delta: 37.7MB). Free memory was 56.9MB in the beginning and 59.5MB in the end (delta: -2.6MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2021-11-19 14:39:30,160 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 104.9MB. Free memory was 57.5MB in the beginning and 57.4MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:39:30,161 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2889.55ms. Allocated memory was 104.9MB in the beginning and 142.6MB in the end (delta: 37.7MB). Free memory was 56.7MB in the beginning and 59.5MB in the end (delta: -2.8MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2021-11-19 14:39:30,162 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 104.9MB. Free memory was 57.5MB in the beginning and 57.4MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2889.55ms. Allocated memory was 104.9MB in the beginning and 142.6MB in the end (delta: 37.7MB). Free memory was 56.7MB in the beginning and 59.5MB in the end (delta: -2.8MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6159]: 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_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/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_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/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_10252f5b-c7cc-4194-9050-52bb380693fa/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 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:39:32,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:39:32,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:39:32,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:39:32,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:39:32,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:39:32,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:39:32,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:39:32,429 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:39:32,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:39:32,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:39:32,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:39:32,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:39:32,436 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:39:32,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:39:32,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:39:32,440 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:39:32,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:39:32,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:39:32,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:39:32,453 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:39:32,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:39:32,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:39:32,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:39:32,468 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:39:32,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:39:32,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:39:32,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:39:32,478 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:39:32,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:39:32,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:39:32,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:39:32,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:39:32,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:39:32,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:39:32,487 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:39:32,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:39:32,489 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:39:32,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:39:32,490 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:39:32,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:39:32,493 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:39:32,542 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:39:32,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:39:32,544 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:39:32,545 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:39:32,545 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:39:32,545 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:39:32,545 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:39:32,546 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:39:32,546 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:39:32,546 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:39:32,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:39:32,549 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:39:32,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:39:32,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:39:32,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:39:32,550 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:39:32,551 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:39:32,551 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:39:32,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:39:32,551 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:39:32,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:39:32,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:39:32,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:39:32,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:39:32,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:39:32,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:39:32,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:39:32,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:39:32,554 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:39:32,554 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:39:32,555 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:39:32,555 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:39:32,556 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:39:32,556 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_10252f5b-c7cc-4194-9050-52bb380693fa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e [2021-11-19 14:39:32,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:39:32,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:39:32,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:39:32,962 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:39:32,962 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:39:32,964 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2021-11-19 14:39:33,051 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/data/d1883e735/75ef031f044a4de7a81fa29b253ddf31/FLAG9650cf26e [2021-11-19 14:39:34,129 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:39:34,130 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2021-11-19 14:39:34,202 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/data/d1883e735/75ef031f044a4de7a81fa29b253ddf31/FLAG9650cf26e [2021-11-19 14:39:34,442 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/data/d1883e735/75ef031f044a4de7a81fa29b253ddf31 [2021-11-19 14:39:34,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:39:34,445 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:39:34,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:39:34,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:39:34,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:39:34,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:39:34" (1/1) ... [2021-11-19 14:39:34,459 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@693a5fa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:34, skipping insertion in model container [2021-11-19 14:39:34,459 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:39:34" (1/1) ... [2021-11-19 14:39:34,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:39:34,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:39:37,819 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_10252f5b-c7cc-4194-9050-52bb380693fa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322818,322831] [2021-11-19 14:39:37,822 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_10252f5b-c7cc-4194-9050-52bb380693fa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322987,323000] [2021-11-19 14:39:37,822 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_10252f5b-c7cc-4194-9050-52bb380693fa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323154,323167] [2021-11-19 14:39:37,823 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_10252f5b-c7cc-4194-9050-52bb380693fa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323322,323335] [2021-11-19 14:39:37,847 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:39:37,966 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:39:38,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:39:38,343 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_10252f5b-c7cc-4194-9050-52bb380693fa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322818,322831] [2021-11-19 14:39:38,344 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_10252f5b-c7cc-4194-9050-52bb380693fa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322987,323000] [2021-11-19 14:39:38,345 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_10252f5b-c7cc-4194-9050-52bb380693fa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323154,323167] [2021-11-19 14:39:38,345 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_10252f5b-c7cc-4194-9050-52bb380693fa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323322,323335] [2021-11-19 14:39:38,351 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:39:38,406 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:39:38,721 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_10252f5b-c7cc-4194-9050-52bb380693fa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322818,322831] [2021-11-19 14:39:38,722 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_10252f5b-c7cc-4194-9050-52bb380693fa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322987,323000] [2021-11-19 14:39:38,722 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_10252f5b-c7cc-4194-9050-52bb380693fa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323154,323167] [2021-11-19 14:39:38,723 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_10252f5b-c7cc-4194-9050-52bb380693fa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323322,323335] [2021-11-19 14:39:38,730 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:39:39,162 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:39:39,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:39 WrapperNode [2021-11-19 14:39:39,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:39:39,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:39:39,175 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:39:39,175 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:39:39,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:39" (1/1) ... [2021-11-19 14:39:39,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:39" (1/1) ... [2021-11-19 14:39:39,578 INFO L137 Inliner]: procedures = 427, calls = 1826, calls flagged for inlining = 207, calls inlined = 191, statements flattened = 4453 [2021-11-19 14:39:39,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:39:39,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:39:39,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:39:39,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:39:39,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:39" (1/1) ... [2021-11-19 14:39:39,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:39" (1/1) ... [2021-11-19 14:39:39,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:39" (1/1) ... [2021-11-19 14:39:39,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:39" (1/1) ... [2021-11-19 14:39:39,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:39" (1/1) ... [2021-11-19 14:39:39,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:39" (1/1) ... [2021-11-19 14:39:39,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:39" (1/1) ... [2021-11-19 14:39:39,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:39:39,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:39:39,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:39:39,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:39:39,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:39" (1/1) ... [2021-11-19 14:39:39,904 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:39:39,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:39:39,927 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:39:39,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:39:39,979 INFO L130 BoogieDeclarations]: Found specification of procedure check_if_running [2021-11-19 14:39:39,979 INFO L138 BoogieDeclarations]: Found implementation of procedure check_if_running [2021-11-19 14:39:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 14:39:39,980 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 14:39:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 14:39:39,980 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 14:39:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-19 14:39:39,980 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-19 14:39:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 14:39:39,981 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 14:39:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_close [2021-11-19 14:39:39,981 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_close [2021-11-19 14:39:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:39:39,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:39:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-11-19 14:39:39,982 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-11-19 14:39:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:39:39,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:39:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 14:39:39,982 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 14:39:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hamachi_private [2021-11-19 14:39:39,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hamachi_private [2021-11-19 14:39:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 14:39:39,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 14:39:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:39:39,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:39:39,984 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 14:39:39,984 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 14:39:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 14:39:39,985 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 14:39:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:39:39,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:39:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-19 14:39:39,985 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-19 14:39:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:39:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-19 14:39:39,986 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-19 14:39:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 14:39:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:39:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:39:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:39:39,988 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 14:39:39,988 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 14:39:39,989 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 14:39:39,989 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 14:39:39,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:39:39,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:39:39,990 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-11-19 14:39:39,990 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-11-19 14:39:39,990 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 14:39:39,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 14:39:39,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 14:39:39,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 14:39:39,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 14:39:39,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 14:39:39,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 14:39:39,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 14:39:39,992 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-11-19 14:39:39,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-11-19 14:39:39,992 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-19 14:39:39,993 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-19 14:39:39,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 14:39:39,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 14:39:39,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:39:39,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 14:39:39,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 14:39:39,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 14:39:39,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 14:39:39,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-19 14:39:39,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-19 14:39:39,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:39:39,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:39:39,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:39:39,996 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 14:39:39,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 14:39:39,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:39:39,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 14:39:39,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 14:39:39,997 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:39:39,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:39:39,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 14:39:39,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_hamachi_private [2021-11-19 14:39:39,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_hamachi_private [2021-11-19 14:39:39,998 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 14:39:39,999 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 14:39:39,999 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-19 14:39:39,999 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-19 14:39:39,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 14:39:39,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 14:39:40,000 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-19 14:39:40,000 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-19 14:39:40,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 14:39:40,000 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-11-19 14:39:40,000 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-11-19 14:39:40,000 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-11-19 14:39:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-11-19 14:39:40,001 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_nway_reset [2021-11-19 14:39:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_nway_reset [2021-11-19 14:39:40,001 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-19 14:39:40,002 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-19 14:39:40,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:39:40,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:39:40,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:39:40,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:39:40,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:39:40,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 14:39:40,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:39:40,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:39:40,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:39:40,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:39:40,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:39:40,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:39:40,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_hamachi_exit_15_2 [2021-11-19 14:39:40,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_hamachi_exit_15_2 [2021-11-19 14:39:40,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 14:39:40,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 14:39:40,018 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-19 14:39:40,018 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-19 14:39:40,018 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_open [2021-11-19 14:39:40,018 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_open [2021-11-19 14:39:40,018 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 14:39:40,019 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 14:39:40,019 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-19 14:39:40,019 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-19 14:39:40,019 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-19 14:39:40,019 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-19 14:39:40,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:39:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-19 14:39:40,020 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-19 14:39:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:39:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-19 14:39:40,020 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-19 14:39:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:39:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:39:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:39:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:39:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:39:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-19 14:39:40,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-19 14:39:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-19 14:39:40,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-19 14:39:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 14:39:40,022 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 14:39:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_68 [2021-11-19 14:39:40,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_68 [2021-11-19 14:39:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:39:40,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:39:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-19 14:39:40,023 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-19 14:39:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-19 14:39:40,023 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-19 14:39:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 14:39:40,023 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 14:39:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_remove_one [2021-11-19 14:39:40,023 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_remove_one [2021-11-19 14:39:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:39:40,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:39:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 14:39:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 14:39:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:39:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 14:39:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:39:40,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:39:40,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_69 [2021-11-19 14:39:40,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_69 [2021-11-19 14:39:40,025 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_get_stats [2021-11-19 14:39:40,025 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_get_stats [2021-11-19 14:39:40,025 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_tx_timeout [2021-11-19 14:39:40,025 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_tx_timeout [2021-11-19 14:39:40,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:39:40,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:39:40,026 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-11-19 14:39:40,026 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-11-19 14:39:40,026 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-19 14:39:40,026 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-19 14:39:40,026 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_timer [2021-11-19 14:39:40,027 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_timer [2021-11-19 14:39:40,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 14:39:40,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 14:39:40,029 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-11-19 14:39:40,029 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-11-19 14:39:40,783 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:39:40,787 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:39:40,963 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:40:02,870 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 14:40:02,921 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:40:02,950 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:40:02,950 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 14:40:02,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:40:02 BoogieIcfgContainer [2021-11-19 14:40:02,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:40:02,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:40:02,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:40:02,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:40:02,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:39:34" (1/3) ... [2021-11-19 14:40:02,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fbb4bd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:40:02, skipping insertion in model container [2021-11-19 14:40:02,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:39" (2/3) ... [2021-11-19 14:40:02,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fbb4bd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:40:02, skipping insertion in model container [2021-11-19 14:40:02,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:40:02" (3/3) ... [2021-11-19 14:40:02,964 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2021-11-19 14:40:02,969 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:40:02,969 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 14:40:03,031 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:40:03,037 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 14:40:03,037 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 14:40:03,099 INFO L276 IsEmpty]: Start isEmpty. Operand has 1568 states, 1094 states have (on average 1.287020109689214) internal successors, (1408), 1121 states have internal predecessors, (1408), 397 states have call successors, (397), 75 states have call predecessors, (397), 74 states have return successors, (390), 377 states have call predecessors, (390), 390 states have call successors, (390) [2021-11-19 14:40:03,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-19 14:40:03,116 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:40:03,117 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:40:03,117 INFO L402 AbstractCegarLoop]: === Iteration 1 === 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 14:40:03,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:40:03,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1867001504, now seen corresponding path program 1 times [2021-11-19 14:40:03,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:40:03,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822239959] [2021-11-19 14:40:03,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:40:03,143 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:40:03,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:40:03,149 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:40:03,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:40:04,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:40:04,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 1378 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:40:04,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:40:05,326 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-19 14:40:05,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:40:05,724 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-19 14:40:05,724 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:40:05,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822239959] [2021-11-19 14:40:05,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1822239959] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:40:05,725 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:40:05,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:40:05,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232913762] [2021-11-19 14:40:05,730 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:40:05,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:40:05,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:40:05,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:40:05,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:40:05,781 INFO L87 Difference]: Start difference. First operand has 1568 states, 1094 states have (on average 1.287020109689214) internal successors, (1408), 1121 states have internal predecessors, (1408), 397 states have call successors, (397), 75 states have call predecessors, (397), 74 states have return successors, (390), 377 states have call predecessors, (390), 390 states have call successors, (390) Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-19 14:40:07,976 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:40:11,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:40:11,378 INFO L93 Difference]: Finished difference Result 5641 states and 8053 transitions. [2021-11-19 14:40:11,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:40:11,381 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 129 [2021-11-19 14:40:11,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:40:11,432 INFO L225 Difference]: With dead ends: 5641 [2021-11-19 14:40:11,432 INFO L226 Difference]: Without dead ends: 4069 [2021-11-19 14:40:11,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:40:11,452 INFO L933 BasicCegarLoop]: 2926 mSDtfsCounter, 3584 mSDsluCounter, 4920 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3584 SdHoareTripleChecker+Valid, 7846 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:40:11,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3584 Valid, 7846 Invalid, 692 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 677 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2021-11-19 14:40:11,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4069 states. [2021-11-19 14:40:11,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4069 to 4015. [2021-11-19 14:40:11,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4015 states, 2803 states have (on average 1.276489475561898) internal successors, (3578), 2882 states have internal predecessors, (3578), 1002 states have call successors, (1002), 210 states have call predecessors, (1002), 207 states have return successors, (1016), 949 states have call predecessors, (1016), 998 states have call successors, (1016) [2021-11-19 14:40:11,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4015 states to 4015 states and 5596 transitions. [2021-11-19 14:40:11,817 INFO L78 Accepts]: Start accepts. Automaton has 4015 states and 5596 transitions. Word has length 129 [2021-11-19 14:40:11,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:40:11,819 INFO L470 AbstractCegarLoop]: Abstraction has 4015 states and 5596 transitions. [2021-11-19 14:40:11,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-19 14:40:11,819 INFO L276 IsEmpty]: Start isEmpty. Operand 4015 states and 5596 transitions. [2021-11-19 14:40:11,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-19 14:40:11,824 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:40:11,825 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:40:11,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-19 14:40:12,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:40:12,050 INFO L402 AbstractCegarLoop]: === Iteration 2 === 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 14:40:12,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:40:12,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1913605573, now seen corresponding path program 1 times [2021-11-19 14:40:12,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:40:12,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [580056262] [2021-11-19 14:40:12,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:40:12,053 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:40:12,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:40:12,054 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:40:12,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:40:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:40:13,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 1343 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:40:13,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:40:13,861 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-19 14:40:13,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:40:14,199 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-19 14:40:14,200 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:40:14,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [580056262] [2021-11-19 14:40:14,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [580056262] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:40:14,200 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:40:14,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:40:14,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763563005] [2021-11-19 14:40:14,201 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:40:14,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:40:14,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:40:14,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:40:14,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:40:14,205 INFO L87 Difference]: Start difference. First operand 4015 states and 5596 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-19 14:40:16,347 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:40:21,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:40:21,732 INFO L93 Difference]: Finished difference Result 15601 states and 21759 transitions. [2021-11-19 14:40:21,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:40:21,733 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 129 [2021-11-19 14:40:21,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:40:21,834 INFO L225 Difference]: With dead ends: 15601 [2021-11-19 14:40:21,834 INFO L226 Difference]: Without dead ends: 11609 [2021-11-19 14:40:21,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:40:21,865 INFO L933 BasicCegarLoop]: 2868 mSDtfsCounter, 5438 mSDsluCounter, 3372 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 728 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5438 SdHoareTripleChecker+Valid, 6240 SdHoareTripleChecker+Invalid, 1537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 728 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:40:21,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5438 Valid, 6240 Invalid, 1537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [728 Valid, 808 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2021-11-19 14:40:21,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11609 states. [2021-11-19 14:40:22,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11609 to 11583. [2021-11-19 14:40:22,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11583 states, 8123 states have (on average 1.2796996183675982) internal successors, (10395), 8338 states have internal predecessors, (10395), 2844 states have call successors, (2844), 620 states have call predecessors, (2844), 613 states have return successors, (2894), 2705 states have call predecessors, (2894), 2840 states have call successors, (2894) [2021-11-19 14:40:22,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11583 states to 11583 states and 16133 transitions. [2021-11-19 14:40:22,694 INFO L78 Accepts]: Start accepts. Automaton has 11583 states and 16133 transitions. Word has length 129 [2021-11-19 14:40:22,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:40:22,695 INFO L470 AbstractCegarLoop]: Abstraction has 11583 states and 16133 transitions. [2021-11-19 14:40:22,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-19 14:40:22,696 INFO L276 IsEmpty]: Start isEmpty. Operand 11583 states and 16133 transitions. [2021-11-19 14:40:22,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-19 14:40:22,701 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:40:22,701 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:40:22,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:40:22,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:40:22,926 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 14:40:22,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:40:22,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1650993285, now seen corresponding path program 1 times [2021-11-19 14:40:22,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:40:22,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1014183446] [2021-11-19 14:40:22,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:40:22,928 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:40:22,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:40:22,930 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:40:22,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:40:24,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:40:24,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 1379 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:40:24,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:40:24,819 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-19 14:40:24,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:40:25,125 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-19 14:40:25,125 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:40:25,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1014183446] [2021-11-19 14:40:25,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1014183446] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:40:25,126 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:40:25,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:40:25,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666232871] [2021-11-19 14:40:25,126 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:40:25,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:40:25,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:40:25,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:40:25,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:40:25,128 INFO L87 Difference]: Start difference. First operand 11583 states and 16133 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-19 14:40:27,305 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:40:28,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:40:28,162 INFO L93 Difference]: Finished difference Result 32549 states and 45398 transitions. [2021-11-19 14:40:28,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:40:28,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 134 [2021-11-19 14:40:28,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:40:28,319 INFO L225 Difference]: With dead ends: 32549 [2021-11-19 14:40:28,320 INFO L226 Difference]: Without dead ends: 20989 [2021-11-19 14:40:28,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:40:28,382 INFO L933 BasicCegarLoop]: 2510 mSDtfsCounter, 1823 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1823 SdHoareTripleChecker+Valid, 4602 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:40:28,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1823 Valid, 4602 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 57 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-19 14:40:28,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20989 states. [2021-11-19 14:40:29,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20989 to 20952. [2021-11-19 14:40:29,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20952 states, 14585 states have (on average 1.2810421666095304) internal successors, (18684), 14995 states have internal predecessors, (18684), 5205 states have call successors, (5205), 1172 states have call predecessors, (5205), 1159 states have return successors, (5318), 4925 states have call predecessors, (5318), 5201 states have call successors, (5318) [2021-11-19 14:40:29,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20952 states to 20952 states and 29207 transitions. [2021-11-19 14:40:29,709 INFO L78 Accepts]: Start accepts. Automaton has 20952 states and 29207 transitions. Word has length 134 [2021-11-19 14:40:29,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:40:29,710 INFO L470 AbstractCegarLoop]: Abstraction has 20952 states and 29207 transitions. [2021-11-19 14:40:29,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-19 14:40:29,711 INFO L276 IsEmpty]: Start isEmpty. Operand 20952 states and 29207 transitions. [2021-11-19 14:40:29,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-19 14:40:29,719 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:40:29,720 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:40:29,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:40:29,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:40:29,935 INFO L402 AbstractCegarLoop]: === Iteration 4 === 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 14:40:29,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:40:29,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1490919160, now seen corresponding path program 1 times [2021-11-19 14:40:29,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:40:29,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1893889936] [2021-11-19 14:40:29,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:40:29,938 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:40:29,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:40:29,939 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:40:29,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:40:31,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:40:31,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:40:31,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:40:32,284 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-19 14:40:32,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:40:32,979 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-19 14:40:32,979 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:40:32,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1893889936] [2021-11-19 14:40:32,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1893889936] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:40:32,980 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:40:32,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 14:40:32,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422523955] [2021-11-19 14:40:32,980 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:40:32,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:40:32,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:40:32,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:40:32,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:40:32,981 INFO L87 Difference]: Start difference. First operand 20952 states and 29207 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 14:40:33,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:40:33,976 INFO L93 Difference]: Finished difference Result 20958 states and 29212 transitions. [2021-11-19 14:40:33,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:40:33,977 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 187 [2021-11-19 14:40:33,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:40:34,063 INFO L225 Difference]: With dead ends: 20958 [2021-11-19 14:40:34,063 INFO L226 Difference]: Without dead ends: 20956 [2021-11-19 14:40:34,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:40:34,074 INFO L933 BasicCegarLoop]: 2159 mSDtfsCounter, 2072 mSDsluCounter, 6454 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2083 SdHoareTripleChecker+Valid, 8613 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:40:34,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2083 Valid, 8613 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:40:34,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20956 states. [2021-11-19 14:40:35,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20956 to 20956. [2021-11-19 14:40:35,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20956 states, 14588 states have (on average 1.2809843707156567) internal successors, (18687), 14998 states have internal predecessors, (18687), 5205 states have call successors, (5205), 1173 states have call predecessors, (5205), 1160 states have return successors, (5318), 4925 states have call predecessors, (5318), 5201 states have call successors, (5318) [2021-11-19 14:40:35,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20956 states to 20956 states and 29210 transitions. [2021-11-19 14:40:35,292 INFO L78 Accepts]: Start accepts. Automaton has 20956 states and 29210 transitions. Word has length 187 [2021-11-19 14:40:35,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:40:35,294 INFO L470 AbstractCegarLoop]: Abstraction has 20956 states and 29210 transitions. [2021-11-19 14:40:35,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 14:40:35,295 INFO L276 IsEmpty]: Start isEmpty. Operand 20956 states and 29210 transitions. [2021-11-19 14:40:35,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-19 14:40:35,305 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:40:35,305 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 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] [2021-11-19 14:40:35,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:40:35,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:40:35,530 INFO L402 AbstractCegarLoop]: === Iteration 5 === 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 14:40:35,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:40:35,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1780724513, now seen corresponding path program 1 times [2021-11-19 14:40:35,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:40:35,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1848155268] [2021-11-19 14:40:35,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:40:35,533 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:40:35,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:40:35,535 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:40:35,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:40:36,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:40:36,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 1477 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:40:36,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:40:37,968 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-19 14:40:37,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:40:38,618 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-19 14:40:38,619 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:40:38,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1848155268] [2021-11-19 14:40:38,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1848155268] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:40:38,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:40:38,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:40:38,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020494032] [2021-11-19 14:40:38,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:40:38,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:40:38,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:40:38,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:40:38,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:40:38,620 INFO L87 Difference]: Start difference. First operand 20956 states and 29210 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-19 14:40:39,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:40:39,519 INFO L93 Difference]: Finished difference Result 20962 states and 29215 transitions. [2021-11-19 14:40:39,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:40:39,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 192 [2021-11-19 14:40:39,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:40:39,614 INFO L225 Difference]: With dead ends: 20962 [2021-11-19 14:40:39,614 INFO L226 Difference]: Without dead ends: 20960 [2021-11-19 14:40:39,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:40:39,628 INFO L933 BasicCegarLoop]: 2162 mSDtfsCounter, 2097 mSDsluCounter, 4305 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2107 SdHoareTripleChecker+Valid, 6467 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:40:39,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2107 Valid, 6467 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:40:39,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20960 states. [2021-11-19 14:40:40,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20960 to 20960. [2021-11-19 14:40:40,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20960 states, 14591 states have (on average 1.2809265985881708) internal successors, (18690), 15001 states have internal predecessors, (18690), 5205 states have call successors, (5205), 1174 states have call predecessors, (5205), 1161 states have return successors, (5318), 4925 states have call predecessors, (5318), 5201 states have call successors, (5318) [2021-11-19 14:40:41,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20960 states to 20960 states and 29213 transitions. [2021-11-19 14:40:41,019 INFO L78 Accepts]: Start accepts. Automaton has 20960 states and 29213 transitions. Word has length 192 [2021-11-19 14:40:41,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:40:41,020 INFO L470 AbstractCegarLoop]: Abstraction has 20960 states and 29213 transitions. [2021-11-19 14:40:41,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-19 14:40:41,020 INFO L276 IsEmpty]: Start isEmpty. Operand 20960 states and 29213 transitions. [2021-11-19 14:40:41,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-19 14:40:41,033 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:40:41,033 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:40:41,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:40:41,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:40:41,247 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 14:40:41,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:40:41,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1912783224, now seen corresponding path program 1 times [2021-11-19 14:40:41,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:40:41,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727947557] [2021-11-19 14:40:41,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:40:41,250 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:40:41,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:40:41,253 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:40:41,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:40:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:40:42,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 1530 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:40:42,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:40:43,244 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 438 trivial. 0 not checked. [2021-11-19 14:40:43,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:40:43,678 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2021-11-19 14:40:43,678 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:40:43,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [727947557] [2021-11-19 14:40:43,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [727947557] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:40:43,679 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:40:43,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:40:43,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815693350] [2021-11-19 14:40:43,679 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:40:43,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:40:43,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:40:43,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:40:43,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:40:43,681 INFO L87 Difference]: Start difference. First operand 20960 states and 29213 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-19 14:40:45,798 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:40:50,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:40:50,141 INFO L93 Difference]: Finished difference Result 48873 states and 68088 transitions. [2021-11-19 14:40:50,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:40:50,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) Word has length 207 [2021-11-19 14:40:50,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:40:50,318 INFO L225 Difference]: With dead ends: 48873 [2021-11-19 14:40:50,318 INFO L226 Difference]: Without dead ends: 34710 [2021-11-19 14:40:50,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:40:50,386 INFO L933 BasicCegarLoop]: 4503 mSDtfsCounter, 4137 mSDsluCounter, 3765 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4137 SdHoareTripleChecker+Valid, 8268 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:40:50,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4137 Valid, 8268 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 818 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2021-11-19 14:40:50,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34710 states. [2021-11-19 14:40:52,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34710 to 34676. [2021-11-19 14:40:52,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34676 states, 24149 states have (on average 1.2797217276077684) internal successors, (30904), 24819 states have internal predecessors, (30904), 8589 states have call successors, (8589), 1956 states have call predecessors, (8589), 1935 states have return successors, (8780), 8135 states have call predecessors, (8780), 8585 states have call successors, (8780) [2021-11-19 14:40:52,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34676 states to 34676 states and 48273 transitions. [2021-11-19 14:40:52,615 INFO L78 Accepts]: Start accepts. Automaton has 34676 states and 48273 transitions. Word has length 207 [2021-11-19 14:40:52,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:40:52,616 INFO L470 AbstractCegarLoop]: Abstraction has 34676 states and 48273 transitions. [2021-11-19 14:40:52,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-19 14:40:52,616 INFO L276 IsEmpty]: Start isEmpty. Operand 34676 states and 48273 transitions. [2021-11-19 14:40:52,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-11-19 14:40:52,626 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:40:52,627 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 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] [2021-11-19 14:40:52,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:40:52,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:40:52,850 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 14:40:52,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:40:52,850 INFO L85 PathProgramCache]: Analyzing trace with hash -2008133864, now seen corresponding path program 1 times [2021-11-19 14:40:52,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:40:52,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [525386854] [2021-11-19 14:40:52,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:40:52,852 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:40:52,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:40:52,854 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:40:52,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:40:54,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:40:54,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 1484 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:40:54,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:40:55,120 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2021-11-19 14:40:55,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:40:55,707 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2021-11-19 14:40:55,707 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:40:55,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [525386854] [2021-11-19 14:40:55,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [525386854] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:40:55,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:40:55,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:40:55,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17198371] [2021-11-19 14:40:55,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:40:55,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:40:55,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:40:55,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:40:55,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:40:55,709 INFO L87 Difference]: Start difference. First operand 34676 states and 48273 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 14:40:56,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:40:56,996 INFO L93 Difference]: Finished difference Result 34682 states and 48278 transitions. [2021-11-19 14:40:56,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:40:56,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 197 [2021-11-19 14:40:56,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:40:57,139 INFO L225 Difference]: With dead ends: 34682 [2021-11-19 14:40:57,139 INFO L226 Difference]: Without dead ends: 34680 [2021-11-19 14:40:57,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:40:57,159 INFO L933 BasicCegarLoop]: 2162 mSDtfsCounter, 2097 mSDsluCounter, 4305 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2106 SdHoareTripleChecker+Valid, 6467 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:40:57,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2106 Valid, 6467 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:40:57,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34680 states. [2021-11-19 14:40:58,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34680 to 34680. [2021-11-19 14:40:58,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34680 states, 24152 states have (on average 1.279686982444518) internal successors, (30907), 24822 states have internal predecessors, (30907), 8589 states have call successors, (8589), 1957 states have call predecessors, (8589), 1936 states have return successors, (8780), 8135 states have call predecessors, (8780), 8585 states have call successors, (8780) [2021-11-19 14:40:59,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34680 states to 34680 states and 48276 transitions. [2021-11-19 14:40:59,084 INFO L78 Accepts]: Start accepts. Automaton has 34680 states and 48276 transitions. Word has length 197 [2021-11-19 14:40:59,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:40:59,085 INFO L470 AbstractCegarLoop]: Abstraction has 34680 states and 48276 transitions. [2021-11-19 14:40:59,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 14:40:59,085 INFO L276 IsEmpty]: Start isEmpty. Operand 34680 states and 48276 transitions. [2021-11-19 14:40:59,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-11-19 14:40:59,096 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:40:59,097 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 9, 9, 9, 9, 9, 9, 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] [2021-11-19 14:40:59,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:40:59,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:40:59,310 INFO L402 AbstractCegarLoop]: === Iteration 8 === 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 14:40:59,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:40:59,310 INFO L85 PathProgramCache]: Analyzing trace with hash -408150526, now seen corresponding path program 1 times [2021-11-19 14:40:59,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:40:59,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1923364772] [2021-11-19 14:40:59,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:40:59,312 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:40:59,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:40:59,313 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:40:59,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:41:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:41:00,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 1654 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:41:00,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:41:01,382 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2021-11-19 14:41:01,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:41:01,784 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-11-19 14:41:01,784 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:41:01,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1923364772] [2021-11-19 14:41:01,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1923364772] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:41:01,785 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:41:01,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:41:01,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724119886] [2021-11-19 14:41:01,785 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:41:01,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:41:01,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:41:01,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:41:01,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:41:01,787 INFO L87 Difference]: Start difference. First operand 34680 states and 48276 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2021-11-19 14:41:03,902 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:41:08,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:41:08,996 INFO L93 Difference]: Finished difference Result 92682 states and 128280 transitions. [2021-11-19 14:41:08,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:41:08,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 194 [2021-11-19 14:41:08,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:41:09,280 INFO L225 Difference]: With dead ends: 92682 [2021-11-19 14:41:09,281 INFO L226 Difference]: Without dead ends: 58025 [2021-11-19 14:41:09,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:41:09,642 INFO L933 BasicCegarLoop]: 3646 mSDtfsCounter, 3371 mSDsluCounter, 3476 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3371 SdHoareTripleChecker+Valid, 7122 SdHoareTripleChecker+Invalid, 884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:41:09,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3371 Valid, 7122 Invalid, 884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 842 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2021-11-19 14:41:09,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58025 states. [2021-11-19 14:41:12,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58025 to 57919. [2021-11-19 14:41:12,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57919 states, 40727 states have (on average 1.272472806737545) internal successors, (51824), 41731 states have internal predecessors, (51824), 13752 states have call successors, (13752), 3494 states have call predecessors, (13752), 3437 states have return successors, (13920), 13005 states have call predecessors, (13920), 13748 states have call successors, (13920) [2021-11-19 14:41:12,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57919 states to 57919 states and 79496 transitions. [2021-11-19 14:41:12,782 INFO L78 Accepts]: Start accepts. Automaton has 57919 states and 79496 transitions. Word has length 194 [2021-11-19 14:41:12,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:41:12,783 INFO L470 AbstractCegarLoop]: Abstraction has 57919 states and 79496 transitions. [2021-11-19 14:41:12,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2021-11-19 14:41:12,783 INFO L276 IsEmpty]: Start isEmpty. Operand 57919 states and 79496 transitions. [2021-11-19 14:41:12,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-11-19 14:41:12,791 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:41:12,791 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 3, 3, 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] [2021-11-19 14:41:12,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 14:41:13,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:41:13,014 INFO L402 AbstractCegarLoop]: === Iteration 9 === 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 14:41:13,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:41:13,014 INFO L85 PathProgramCache]: Analyzing trace with hash 405725247, now seen corresponding path program 1 times [2021-11-19 14:41:13,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:41:13,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888850049] [2021-11-19 14:41:13,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:41:13,016 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:41:13,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:41:13,017 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:41:13,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 14:41:14,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:41:14,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 1491 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:41:14,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:41:15,338 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2021-11-19 14:41:15,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:41:15,974 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2021-11-19 14:41:15,974 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:41:15,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888850049] [2021-11-19 14:41:15,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1888850049] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:41:15,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:41:15,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:41:15,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279986124] [2021-11-19 14:41:15,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:41:15,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:41:15,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:41:15,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:41:15,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:41:15,976 INFO L87 Difference]: Start difference. First operand 57919 states and 79496 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-19 14:41:18,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:41:18,191 INFO L93 Difference]: Finished difference Result 57925 states and 79501 transitions. [2021-11-19 14:41:18,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:41:18,191 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 202 [2021-11-19 14:41:18,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:41:18,358 INFO L225 Difference]: With dead ends: 57925 [2021-11-19 14:41:18,358 INFO L226 Difference]: Without dead ends: 57923 [2021-11-19 14:41:18,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:41:18,379 INFO L933 BasicCegarLoop]: 2162 mSDtfsCounter, 2097 mSDsluCounter, 4305 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2105 SdHoareTripleChecker+Valid, 6467 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:41:18,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2105 Valid, 6467 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:41:18,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57923 states. [2021-11-19 14:41:21,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57923 to 57923. [2021-11-19 14:41:21,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57923 states, 40730 states have (on average 1.2724527375398968) internal successors, (51827), 41734 states have internal predecessors, (51827), 13752 states have call successors, (13752), 3495 states have call predecessors, (13752), 3438 states have return successors, (13920), 13005 states have call predecessors, (13920), 13748 states have call successors, (13920) [2021-11-19 14:41:21,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57923 states to 57923 states and 79499 transitions. [2021-11-19 14:41:21,577 INFO L78 Accepts]: Start accepts. Automaton has 57923 states and 79499 transitions. Word has length 202 [2021-11-19 14:41:21,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:41:21,578 INFO L470 AbstractCegarLoop]: Abstraction has 57923 states and 79499 transitions. [2021-11-19 14:41:21,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-19 14:41:21,579 INFO L276 IsEmpty]: Start isEmpty. Operand 57923 states and 79499 transitions. [2021-11-19 14:41:21,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-19 14:41:21,589 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:41:21,589 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:41:21,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 14:41:21,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:41:21,806 INFO L402 AbstractCegarLoop]: === Iteration 10 === 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 14:41:21,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:41:21,806 INFO L85 PathProgramCache]: Analyzing trace with hash 631965496, now seen corresponding path program 1 times [2021-11-19 14:41:21,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:41:21,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [643198847] [2021-11-19 14:41:21,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:41:21,808 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:41:21,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:41:21,809 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:41:21,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10252f5b-c7cc-4194-9050-52bb380693fa/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 14:41:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:41:23,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 1498 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:41:23,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:41:24,117 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2021-11-19 14:41:24,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:41:24,731 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2021-11-19 14:41:24,731 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:41:24,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [643198847] [2021-11-19 14:41:24,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [643198847] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:41:24,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:41:24,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:41:24,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708959197] [2021-11-19 14:41:24,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:41:24,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:41:24,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:41:24,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:41:24,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:41:24,734 INFO L87 Difference]: Start difference. First operand 57923 states and 79499 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 14:41:27,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:41:27,232 INFO L93 Difference]: Finished difference Result 57929 states and 79504 transitions. [2021-11-19 14:41:27,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:41:27,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 207 [2021-11-19 14:41:27,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:41:27,388 INFO L225 Difference]: With dead ends: 57929 [2021-11-19 14:41:27,388 INFO L226 Difference]: Without dead ends: 57927 [2021-11-19 14:41:27,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:41:27,407 INFO L933 BasicCegarLoop]: 2162 mSDtfsCounter, 2097 mSDsluCounter, 4305 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2104 SdHoareTripleChecker+Valid, 6467 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:41:27,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2104 Valid, 6467 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:41:27,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57927 states.